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SM82S Manual - Rane Corporation
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1. DETAIL DETRIL B L BRACKET MOUNTING G OO 6 PLACES Eg PREP NOTE T NA o ado CLIP OFF TAB ON STACKED JACKS 1 1 0 MASK OFF H1 THRU H5 AND H7 SCREW HEADS THREADED HOLE I L BRACKET amp STAND OFF E 1 MOUNTING 4 PLACES 114842 FILM 1 OF 6 TOP SILKSCREEN SH82S H11 THRU H14 THRU H5 HZ INPUTS LOOP LOOP MAIN SEND RETURN EXPAND BAL EXPAND TOP LEFT MONO OUT OUT OP LEFT HONO BTM RIGHT RIGHT LOOP MAIN MONO MONO IN IN 1 2 4 B 6 RIGHT me POWER a C195 gt m ETJ IT 2500 Em ost ek 0 n 12 Ed d 5 id 24 i MS mE id Kg D u s 038 099 040 043 044 D45 046 04 048 D49 050 DSL 052 sa SRA Egan rn rr zscari Measca rats anf Tee an Y quz wtf Y Y uz hae zu Y gaza Y nz L Jsu LR zanD Y nz 1 51 j jy os 5 RE a ach Et Ld U LI TZ E E 020 LI E ERU EOE 8 Sera s 3 SHE us DID Es 17 7 40 CH THz CH TEE CE7 TES C92 C83 SaL Las C94 55 gard LX ESL i pas 7 H Gd 1 Ra 1 CR aus 1 CR pa E 722 s RL pee Coan 5 j ANGE JE Jaz aC JL a RAC 1 20 g s 3 5825 MAIN c193 a Braille 20858
2. INPUT OUTPUT OUTPUT OVERLOAD LEVEL OVERLOAD LEVEL OL OUTPUT OL BALANCED V SENSE BALANCE SENSE DRIVERS o RIGHT 446 48 RIGHT MAIN 0 dB 6 dB gt RIGHT RIGHT SEND T ph SUMMING CHANNEL 1 ae V OUTPUTS RFI V 0 dB 6d8 gt LEFT FILTER INPUT 698 LEFT SEND 1 BALANCED V MONO NPUT SEND DRIVERS o y BALANCE 1 LEVEL a2 18 7 LEFT RECEIVE L OVERLOAD RIGHT RING LR MAIN RA LEVEL L LEFT TIP EXPAND v FILTER OUT RIGHT INPUT ca dL LOOP V a RETURNS CH5 4L L SUMMING RFI AMPLIFIERS LEFT VT FILTER Z RIGHT oop INPUT TR LEFT o gp Y v m SENDS MONO RECEIVE BALANCE CH7 em L rh LEFT MONO cH8 dle RING RIGHT i LOOP EXPAND INPUT RING RIGHT MAIN EXPAND LEFT INPUT Architectural Specifications The line level stereo mixer unit shall have eight 8 stereo total of 16 inputs one main stereo output pair one stereo loop send pair one stereo loop receive pair loop and main stereo expand inputs and one stereo main expand output All inputs as well as the loop send output shall be configured such that plugging only into the left input or output will mono the system Each stereo input shall have a rotary ganged level control with a range of off to 6 dB gain and a separate input overload LED Separate 6 dB gain master rotary ganged stereo out
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4. V AMPLIFIERS GHT LEFT FILTER is INPUT 16 dB LEFT o gg SENDS MONO RECEIVE BALANCE v th CH7 Hh LEFT MONO CH8 RING RIGHT Loop V EXPAND ATIP LEFT INPUT _ RING RIGHT MAIN EXPAND ATIP LEFT INPUT V m Rane Corporation Manual 4 10802 47th Ave W Mukilteo WA 98275 5000 USA TEL 425 355 6000 FAX 425 347 7757 WEB rane com 107271 RANE DATA SHEET 3 4 5 SEND PAN LEVEL SEND PAN LEVEL SEND PAN LEVEL SEND PAN LEVEL SEND PAN LEVEL General Description The Rane SM82S is a product offering incredible power and ver satility It is the equivalent of a sixteen channel mixer in one rack space Measuring only 5 25 inches deep it can do the job of mix ers costing several times as much while only occupying a fraction of the rack space It is ideally suited for keyboards synthesizer expander modules and drum machines as well as such things as effects mixing in guitar racks It also functions as an excellent submixer for stereo line inputs and effects to a larger console Because of shorter internal signal paths it is much cleaner than many mixers ten times the cost and size Each of the eight Stereo two channel input channels feature a stereo rotary input Level control a stereo aux Send level control slider and a left to right Balance control slider When a single mono input is used the Balance control acts as a pan pot The aux return section provides a rotary Return Level cont
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6. A BA ALEG 8129 851 see 40 02 A Obed 10 MO OL Sea 591 9129 Nw O3H SONO SOND a A ro ro 819 2919 581 SSI 30 02 ANN 1 vied 40 01 61 RSS 40 01 ved 581 ELZH aH 55 uadris ANN X001 8024 56 site AW Sgt NS 9 5915 SQN5 f ji Vo ISLO OSLO 591 SS i 40 0z A 024 0124 48 210 00t oga SSH 0 Ww qaq ius 02 AN z0cH 6024 35 zed SSH LOZH dad 200405 9 528 15 528 5 510 0 AYOO 40 02 sano AW 661H i Ssi wem 581 sano sano cot io 610 p 9no 591 SS xo oz AA xX0 0L 2614 861H S 0 0L ssi elu Nay sano TR ANN 0 0L 0614 1614 yoo za ssi 6814 w 934 ZLOZ EZ E RANE A WARRANTY FACTORY AUTHORIZED SERVICE Your unit may be serviced by the Rane Factory or any Authorized Rane Service Center To find a Service Center near you please call the Rane factory or check the Rane website Please do not return your unit to Rane without prior authorization Rane Corporation To obtain service or a Return Authorization please phone 425 355 6000 or Fax 425 347 7757 The current list of U S Rane Authorized Service Centers is found on our website WWW rane com service html L
7. loign de tout objet poss dant du liquide boisson en bouteilles vases Les symboles ci dessous sont reconnus internationalement ATTENTION CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN ATTENTION RISQUE DE CHOCS ELECTRIQUE NE PAS OUVRIR comme pr venant tout risque lectrique Ce symbole indique que cette unit utilise un voltage lev constituant un risque de choc lectrique Afin d viter tout risque de choc lectrique ne pas ouvrir l appareil Ce symbole indique la pr sence d instructions Aucune pi ce ne peut tre chang e par l utilisateur Contactez un d utilisation et de maintenance importantes dans le SAV qualifi pour toute intervention document fourni REMARQUE Cet quipement a t test et approuv conforme aux limites pour un appareil num rique de classe B conform ment au chapitre 15 des r gles de la FCC Ces limites sont tablis pour fournir une protection raisonnable contre tout risque d interf rences et peuvent provoquer une nergie de radiofr quence s il n est pas install et utilis conform ment aux instructions peut galement provoquer des interf rences aux niveaux des quipements de communication Cependant il n existe aucune garantie que de telles interf rences ne se produiront pas dans une installation particuli re Si cet quipement provoque des interf rences en r ception radio ou t l vision ceci peut tre detect en mettant l quipement sous hor
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10. 9 OUTPUT OverLoad indicator glows red any time the output level exceeds 4 dB below clipping 17 OUTPUT PAN control is a vertical slider that operates in the same fashion as the PAN control described in item 3 above It however determines the relative levels of the LEFT and RIGHT MAIN OUTPUTS only Manual 2 REAR PANEL DESCRIPTION o s BALANCED UNBALANCED E 6 A nent met di irr aiii sic n RING F Channel Input jacks consist of eight pairs of unbalanced 14 tip sleeve jacks used to connect any line level signal source to the 5 825 As indicated only the LEFT is to be used if the Input is mono and should therefore appear in both Left and Right chan nels depending on the position of the front panel PAN control UNBALANCED XX ZN X ZN LEFT LEFT LEFT LEFT LEFT LEFT LEFT LEFT INPUTS ARE UNBALANCED SM82S RANE CORPORATION ps rd mid Q zd is 100 240 V ro 247 LMAIM 50 60 Hz 7 WATTS NO OUTPUT LOOP RETURN SZ NF 0 0 0 0 08 We RIGHT RIGHT RIGHT 22 MAIN EXPAND INPUT A 4 TRS stereo Input jack may link two more SM82Ss together or accept the output from another mixer This may also be used to sum any fixed level stereo signal into the Main Outputs producing a ninth stereo Input when added with D A stereo Tip Ring Sleeve cable must
11. L R output send for mono input processors 10802 47th Ave W Mukilteo WA 98275 5000 USA TEL 425 355 6000 FAX 425 347 7757 WEB rane com features amp specifications subject to change without notice 6 2015 RANE Sound System Interconnection Cause amp prevention of ground loops Interfacing balanced amp unbalanced Proper pin connections and wiring Chassis ground vs signal ground Ground lift switches Rane Technical Staff RaneNote 110 1985 1995 2006 2007 2011 Rane Corporation RaneNote SOUND SYSTEM INTERCONNECTION Introduction This note originally written in 1985 continues to be one of our most useful references It s popularity stems from the continual and perpetual difficulty of hooking up audio equipment without suffering through all sorts of bizarre noises hums buzzes whistles etc not to mention the extreme financial physical and psycholog ical price As technology progresses it is inevitable that electronic equipment and its wiring should be subject to constant improvement Many things have improved in the audio industry since 1985 but unfortunately wiring isn t one of them However finally the Audio Engineering Society AES has issued a standards document for interconnection of pro audio equip ment It is AES48 titled AES48 2005 AES standard on interconnections Grounding and EMC practices Shields of connectors in audio equipment containing active circuitry
12. SM82S Rane Corp 114669 D ACTION WAS 110855 31JAN12 SKH ADD TUS DIODES CHG RI TO SMT ere gare 1 Ie em ser L cru Cz C L kem oz E sozu Coza m zeus BNW zem 1 amp LI LI 5 amp 1004 aagana 1004 aagana NE SM82S MAIN 20858 SZ8WS Nd3U2S IS WO1108 9 40 9 CVe8V 1T S JO 8609 9 286 VM CONN HW CMY 9oquos I SzgWs szguissioolord avo 999tL L 433Hs 1 8M enueAv Uly 20801 A 03193 ulen ZLOZ EZ E ZINVPSZ HAS 92601 SYM G SLNdNI 28 15 3 NW SLYYd LWS OL Q31vaan LG NHHL 8 0 Gav NOILOV QNO ano QNO qN9 Sa las 46 06 2 0S 1 6 062 A0S L brug SO 81H ano ano Lvl xe vd Y ed Mu ii 1 ano ano e 40 01 20 01 bi Lo 40 01 a bi t voo a OZH V001 D oou 40 01 E ALL g X001 m Li CaTa OPUS ze ano 3 a
13. isolation is not an option special cable assemblies are a last resort The key here is to prevent the shield currents from flowing into a unit whose grounding scheme creates ground loops hum in the audio path i e most audio equipment It is true that connecting both ends of the shield is theoretically the best way to interconnect equipment though this assumes the interconnected equipment is internally grounded properly Since most equipment is not internally grounded properly connecting both ends of the shield is not often practiced since doing so usu ally creates noisy interconnections common solution to these noisy hum and buzz problems involves disconnecting one end of the shield even though one can not buy off the shelf cables with the shield disconnected at one end The best end to dis connect is the receiving end If one end of the shield is disconnected the noisy hum current stops flowing and away goes the hum but only at low frequencies A ground sending end only shield connection minimizes the possibility of high frequency radio interference since it prevents the shield from acting as an antenna to the next input Many reduce this potential RF inter ference by providing an RF path through a small ca pacitor 0 1 or 0 01 microfarad ceramic disc connected from the lifted end of the shield to the chassis This is referred to as the hybrid shield termination where the sending end is bonded to the chassis and t
14. not tied nor need be this means equipment using 3 pin XLR type connectors must tie pin 1 to the chassis usually called chassis ground not the audio signal ground as is most common COMMON WRONG PRACTICE RECOMMENDED PRACTICE CASE 5 OPTIONAL 2 3 10 V 7 7 CHASSIS SIGNAL CHASSIS CHASSIS GROUND GROUND GROUND GROUND Figure 1b Recommmended practice Not using signal ground is the most radical depar ture from common pro audio practice Not that there is any argument about its validity There isn t This is the right way to do it So why doesn t audio equipment come wired this way Well some does and since 1993 more of it does That s when Rane started manufac turing some of its products with balanced inputs and outputs tying pin 1 to chassis So why doesn t everyone do it this way Because life is messy some things are hard to change and there will always be equipment in use that was made before proper grounding practices were in effect Unbalanced equipment is another problem it is everwhere easily available and inexpensive All those RCA and TS connectors found on consumer equip ment effect loops and insert points on consoles signal processing boxes semi pro digital and analog tape recorders computer cards mixing consoles et cetera The next several pages give tips on how to suc cessfully address hooking up unbalanced equipment Unbalanced equipment when blindl
15. o 4 o L OL 4 6 4 6 4 6 gt 4 6 4 6 4 6 4 6 4 6 4 6 RANE sf H cH 30 ch 5 cq 5 eH sH ca cH H cH NEM 1 Zn 8 zm 8 8l al amp 8l ome 8 2 2 8 n2 8 STEREO MIXER o R 10 o R 1 k R o 10 9 R o 10 R 0 10 9 R 10 L 0 10 k R 10 R 10 R 10 ec SEND PAN LEVEL SEND PAN LEVEL SEND PAN LEVEL SEND PAN LEVEL SEND PAN LEVEL SEND PAN LEVEL SEND PAN LEVEL SEND PAN LEVEL PAN LEVEL PAN LEVEL POWER 8 1 Input LEVEL controls are rotary stereo attenuators that adjust the amount of both Left and Right signals applied to an Input Outputs are summed for mixing with all other Inputs The unity gain position of this control is located at 7 5 Input OverLoad indicators glow red whenever its corresponding Input s output exceeds a level 4 dB below clipping letting you know it s a good idea to turn this Input down a bit Input PAN controls operate as PAN with a mono signal and BALANCE with a stereo signal PAN When a mono input is used no plug in the RIGHT Input jack the signal moves from the Left to Right channels At the extreme top of travel the sound source is heard from the Left output at the other extreme bottom it is heard only from the Right output In the middle the sound is heard equally from each output but is reduced in level by 3 dB relative to its or
16. sections is applied to a unity gain buffer to prevent the LEVEL control from adversely interacting with downstream circuitry The Input overload sensor monitors here to alert the user via LED to any possible Input overload conditions Left and Right audio is then subjected to the channel PAN control to al low the user to place the stereo image of the source as desired to the Left and Right Outputs stereo SEND control adjusts the amount of each Input routed to the Loop Output All eight stereo Inputs are simultaneously adjusted for stereo placement by the OUTPUT PAN control The resultant signal is added together and fed to the OUTPUT LEVEL control which has it s own Overload indicator The main Outputs are fully actively balanced allowing the use of correctly wired long cables EFFECTS LOOP The LOOP SENDS receive their audio from the Send bus which is the sum of all the Inputs as determined by the Input SEND controls This Output may be used to drive a stereo effects pro cessor The output of the effect device is returned to the SM82S through the LOOP RETURNS The level of the returned effect is determined by the RETURN LEVEL control on the front panel The return section also provides a BALance control for image placement PAN BALANCE CONTROLS These operate as PAN with a mono signal plugged in the LEFT input only and BALANCE with a stereo signal both jacks plugged in These do not increase the level of e
17. to avoid possible needless shipment in case the problem can be solved over the phone UNAUTHORIZED SERVICE PERFORMED ON ANY RANE PRODUCT WILL VOID ITS EXISTING FACTORY WARRANTY FACTORY SERVICE If you wish your Rane product to be serviced at the factory it must be shipped fully insured in the original packing box or equivalent This warranty will not cover repairs on products damaged through improper packaging If possible avoid sending products through the mail Be sure to include in the package 1 Complete return street shipping address PO Box numbers are not acceptable 2 A detailed description of any problems experienced including the make and model numbers of any other system equipment 3 Remote power supply if applicable Repaired products purchased in the U S will be returned prepaid freight via the same method they were sent to Rane Products purchased in the USA but sent to the factory from outside the USA must include return freight funds and the sender is fully responsible for all customs procedures duties tariffs and deposits In order to qualify for Rane s one year extended warranty for a total of 3 years parts and labor the warranty must be cornpletely filled out and sent to us immediately Valid in USA only We recommend you write your serial number here in your owners manual and on your sales receipt for your records SERIAL NUMBER PURCHASE DATE ORane Corporation 10802 47th Ave W Mukilteo WA 982
18. 19 1437 d o a 2 z S dOO1 5 sr a 5 3 wam 1 gt IL a 2010 e ot d azr v69 390022 Es T 895 adi ez 127 ano VO ano 169 ano ii 81VOSI8WSL A0S ZP O0S Lv S ob yoroz 09 2 aE RN 0 184 6 H 869 137 VI Q 294 SSH 2 90 300022 QNO 812 ONS e1vosianst reo asa E M 240082 ano BE 912 b dies OO e1vosianst 1 r T 03 6 06 lt 0S 1 Gk H O 198 16H sdooze aNd LIZ AND e1vosianst ON ano 40 02 vsa 09 27 494 roz 09 4 T 1 40 02 ii 3006 af MW Jdoz er ANH ae ano 912 oe 1 ano ano I E 147 voor t 9524 i Zano OLSH SAND N 5 Agr g 1001 2 ZEUS oae Bla Laver casn wes 4 Super EAS us D TT oun p gt rv L bi AX F RATE i d L onon S go Sk 0 1431 GND 1019 O U 1431 do zz 2 GNO 69 400022 awo 290 490022 BO 40 01 02 B 8 1 ez 9 1ndNI Sy 1892 girp VIOOL ao 8 5 x T 2 ven QNS 9 o 9L v 7 gt 2 div 1 3 4 cihan wae H Ken voup SHAY 1 d 4 iHe ves H wo dE a OS L pie 9 51 zuo z 269 440022 ae z 995 240022 GND OND glo 612 T 1 adzy vo u JL ni an9 069 T ano oz X002 Sit Sk I Si SL Wwe tL ANV MN
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20. 75 5000 TEL 425 355 6000 FAX 425 347 7757 WEB www rane com Warranty 2 108360 Declaration of Conformity Application of Standard s to which Council Directive s conformity is declared 2001 95 EC EN60065 2002 A1 2006 A11 2008 A2 2010 A12 2011 2002 96 EC EN55103 1 2009 2004 108 EC EN55103 2 2009 2006 95 EC EN50581 2012 2011 65 EU ENVIRONMENT E2 CE MARK FIRST AFFIXED IN 2006 Manufacturer SERIAL NUMBERS 850000 950000 Rane Corporation 10802 47th Avenue West Mukilteo WA 98275 5000 USA This equipment has been tested and found to be in compliance with all applicable standards and regulations applying to the EU s Low Voltage LV directive 2006 95 EC and Electromagnetic Compatibility EMC directive 2004 108 EC In order for the customer to maintain compliance with this regulation high quality shielded cable must be used for interconnection to other equipment Modification of the equipment other than that expressly outlined by the manufacturer is not allowed under this directive The user of this equipment shall accept full responsibility for compliance with the LV directive and EMC direc tive in the event that the equipment is modified without written consent of the manufacturer This declaration of conformity is issued under the sole responsibility of Rane Corporation Type of Equipment Professional Audio Signal Processing Brand Rane Model SM82S Immunity Results THD N re 4 dBu 400 Hz BW 20 20kHz Test Description Results
21. ANCED EUROBLOCK 1 FEMALE BALANCED XLR NOT A TRANSFORMER NOR A CROSS COUPLED OUTPUT STAGE 2 3 4 T tod to SHIELD NC OF 254 FEMALE BALANCED XLR EITHER A TRANSFORMER OR A CROSS COUPLED OUTPUT STAGE T tod t SHIELD NC arj y Ya BALANCED TRS NOT A TRANSFORMER NOR A CROSS COUPLED OUTPUT STAGE T tod ie SHIELD ONLY TO EUROBLOCK arj J Ya BALANCED TRS EITHER A TRANSFORMER OR A CROSS COUPLED OUTPUT STAGE T tod t SHIELD NC arj 5 Ya FLOATING UNBALANCED TRS TIP RING SLEEVE SLEEVE IN UNIT NC 21 T tod GROUND to GROUND 4 OR 3 5 mm UNBALANCED TS TIP SLEEVE 13 23 JD UNBALANCED RCA TIP SLEEVE 17 18 23 BALANCED EUROBLOCK to op SHIELD ONLY TO XLR PIN 1 T tod Siga SHIELD ONLY TO TRS SLEEVE Figure 4 Interconnect chart for locating correct cable assemblies on the following pages Note A This configuration uses an off the shelf cable Note B This configuration causes a 6 dB signal loss Compensate by turning the system up 6 dB Interconnection 6 T tod GROUND to GROUND From Output 1 SHIELD 1 gt 2 RED 3 BLACK 1 SHIELD 2 RED 3 BLACK 1 SHIELD 2 RED 3 NC 1 SHIELD 2 RED 3 BLACK 1 SHIELD 2 RED 3 BLACK T RED R BLACK S SHIELD T RED R BLACK S SHIELD T RED R NC B S SHIELD T RED R NC S SHIELD 10 w T RED
22. ANE CONTENTS order of appearance Important Safety Instructions SM82S Manual SM82S Data Sheet Sound System Interconnection Schematics Warranty Declaration of Conformity 22372 STEREO LINE MIXER SM82S STEREO MIXER RETURN OUTPUT LEVEL llllollille SEND PAN Simile rj m8 AD I LEVEL SEND PAN INS Ch fo NUS I LEVEL SEND PAN EHE ES HH TONO Do o fo s I LEVEL SEND PAN ETHER EET LEVEL SEND PAN LEVEL SEND PAN SEE 0 ET S fo te I altiora LEVEL SEND PAN Fos u 2 fo aye LEVEL et 0 x0 SEND PAN IMPORTANT SAFETY INSTRUCTIONS Read these instructions Keep these instructions Heed all warnings Follow all instructions Do not use this apparatus near water Clean only with a dry cloth Do not block any ventilation openings Install in accordance with manufacturer s instructions Do not install near any heat sources such as radiators registers stoves or other apparatus including amplifiers that produce heat N WA N Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades with one wider than the other A grounding type plug has two blades and a third grou
23. Conditions RF Electromagnetic Fields Immunity 80 MHz 1000 MHz 1 kHz AM 8096 depth 3V m 46 dB 80 MHz 100 MHz 59 dB 100 MHz 200 MHz 53 dB 200 MHz 350 MHz 42 dB 350 MHz 550 MHz 52 dB 550 MHz 1000 MHz Conducted RF Disturbances Immunity 150 kHz 80 MHz 1 kHz AM 8096 depth 3V rms 61 dB Power Lines 57 dB Signal Lines Magnetic Fields Immunity 50 Hz 10 kHz 4 0 0 4 A m 61 dB L the undersigned hereby declare that the equipment specified above conforms rA y Ap to the Directive s and Standard s shown above Roy G GIll Full Name Position November 8 2006 Mukilteo WA USA Date Place Compliance Engineer ANE N ee 9 9 1331 ee ONOW 1331 ONOW 1331 1H9IH ONOW 1437 aN3S doo1 1H9IH ONOW 1437 Y ONIY T dIL GIINVIVENN N3f1134 40071 1ndino aNvdxa NIVIA LX 1 1 381003 NOILYHOdHOI INYA oranv 1VI983WW029 SLLYM 4 ZH 09 06 UA 0b2 00T szans
24. Convention of Audio Engineering Society in San Francisco CA Nov 1994 The entire June 1995 AES Journal Vol 43 No 6 available 6 members 11 nonmembers from the Audio Engineer ing Society 60 E 42nd St New York NY 10165 2520 Phillip Giddings Audio System Design and Installation SAMS Indiana 1990 5 Ralph Morrison Noise and Other Interfering Signals Wiley New York 1992 6 Henry W Ott Noise Reduction Techniques in Electronic Systems 2nd Edition Wiley New York 1988 7 Cal Perkins Measurement Techniques for Debugging Electronic Systems and Their Instrumentation The Pro ceedings of the 11th International AES Conference Audio Test amp Measurement Portland OR May 1992 pp 82 92 Audio Engineering Society New York 1992 8 Macatee RaneNote Grounding and Shielding Audio Devices Rane Corporation 1994 9 Philip Giddings Grounding and Shielding for Sound and Video S amp VC Sept 20th 1995 10 AES48 2005 AES standard on interconnections Grounding and EMC practices Shields of connectors in audio equipment containing active circuitry Audio Engineering Society New York 2005 Band Aid is a registered trademark of Johnson amp Johnson N gt Interconnection 5 From Output CABLE CONNECTORS O MALE BALANCED XLR To Input X Cum Ya BALANCED TRS TIP RING SLEEVE X OR3 5mm UNBALANCED TS TIP SLEEVE je UNBALANCED RCA BAL
25. D T RED WL o S SHIELD ED RED 1 6 i n c TS as 1 CONDUCTOR SHIELDED CABLE neo a T RED S SHIELD 20 MALE RED RED 1 SHIELD T RED 2 CONDUCTOR SHIELDED CABLE BLACK ds 2 RED S BLACK 5 SHIELD 3 BLACK RED RED T RED T RED 2 CONDUCTOR SHIELDED CABLE BLACK R BLACK S BLACK WE MC NOT S SHIELD RED Scit WE 20 rc i RED 1 CONDUCTOR SHIELDED CABLE RED T RED S SHIELD S SHIELD MALE To Input 1 CONDUCTOR SHIELDED CABLE RED gt T RED S SHIELD From Output T RED 1 SHIELD 21 Rn BLACK 2 CONDUCTOR SHIELDED CABLE 2 RED S SHIELD 3 BLACK CHECK NO STANDARD POLARITY ON EUROBLOCKS 4 d CROSS COUPLED OUTPUT ONLY CONNECT BLACK TO SHIELD AT THIS END AND SET GROUND LIFT SWITCH TO GROUNDED IF PRESENT ORane Corporation 10802 47th Ave W Mukilteo WA 98275 5000 USA TEL 425 355 6000 FAX 425 347 7757 WEB www rane com Interconnection 8 DOC 102907
26. EPLE feo AN ANA NAOO v8lH 0919 SQNO Osglu saN9 SaNS r Amrwalino VOOL 001 NAO0L o 21919 NIAPOO L4 NAYOO ssil egy Lo X002 4 Prom 519 9 NIPIOOL NIIOO 1 xoog 8819 fo NIYOOL VS8lu tH 991 H EEAS Evans S 2519 S C imagino NIAMIOO NIAMOO L SONO SONO 40 02 40 02 V 00L ir o agog VASE o 0 02 o ANN ANN 8 mm 6919 m saN9 ym 001 t NINHOOL gt 99 4 WOOT n of SOND o af e o r of 89d WOH3 er aod NIVW WOH3 ser SOND af of o r e of str 89d ger 17 89d NIVIN ear 40 02 VA00 NIAPIOOL oz 8991 1007 899180 NOO L SONO veau 0 02 c Hd Soos V99Lu o San NIAPOO L NIAPMOO L 91 3002 NWXOO 3002 8 61 6rd NNY00 SONO 40 02 AW SL yorog fto ANA 8519 SONS vii OL 3 9 40 02 WOOL ZviH SaN9 S g0rtu Jd QVOvO ZLOZ EZ E 99901 ses 8605 5286 VM onw uw 1S8 uit 20801 AS TEE ZINVPSZ HYS 92601 SYM zews NOILOV SQN5 H3MOd
27. FA ESEE TIP L RING R REVERB EFFECTS FROM ANOTHER MIXER OR SM82S OUTPUTS LOOP LOOP MAIN EXPAND SEND RETURN INPUTS SM82S MAIN EXPAND OUTPUTS OUTPUTS INPUTS STEREO AMPLIFIER COMPUTER SOUND CARD INTERFACE OUTPUTS J Application Information The SM82S allows you to mix eight Stereo line level Inputs down to a main Stereo Output Additionally you can create a separate Stereo Loop Send mix for driving any stereo or mono external processor and then return from this processor into the Stereo Loop Return Inputs The stereo Return Level control is used to set the desired mix of wet and dry signals For applications not requiring the looping facilities the Loop Return Inputs double as a fully functional 9th Stereo Input creating a 9 Input Stereo Mixer When used this way the Loop Send Outputs become a separate Stereo Output pair useful for monitor sends tape outputs or any other application Rane Corporation Data Sheet 4 When not used for expansion the Main Expand Output pair double as a pre fader stereo mix again useful as tape outputs or any other fixed level application Mono sources and external processors are handled easily by the SM82S Connecting only to any Left Input Jack automatical ly routes this signal to the Right channel so an equal Left Right signal is summed into the mains Similarly connecting only to the Left Loop Send output gives you an equal mono
28. IMITED DOMESTIC WARRANTY RANE CORPORATION WARRANTS ALL RANE PRODUCTS EXCEPT THOSE ITEMS CLASSIFIED AS WEAR PARTS AND LISTED ON THE MANUAL 1 PAGE OF EACH OPERATORS MANUAL PURCHASED IN THE USA AGAINST DEFECTS IN MATERIAL OR WORKMANSHIP FOR A PERIOD OF TWO 2 YEARS WEAR PARTS ARE LIMITED TO A PERIOD OF NINETY 90 DAYS FROM THE INITIAL DATE OF RETAIL PURCHASE FROM AN AUTHORIZED DEALER WEAR PARTS REQUIRE PROOF OF PURCHASE DATE limited warranty extends to all purchasers or owners of the product during the warranty period beginning with the original retail purchase Rane Corporation does not however warrant its products against any and all defects 1 arising out of material or workmanship not provided or furnished by Rane or 2 resulting from abnormal use of the product or use in violation of instructions or 3 in products repaired or serviced by other than authorized Rane repair facilities or 4 in products with removed or defaced serial numbers or 5 in components or parts or products expressly warranted by another manufacturer Rane agrees to supply all parts and labor to repair or replace defects covered by this limited warranty with parts or products of original or improved design at its option in each respect if the defective product is shipped prior to the end of the warranty period to any Rane authorized warranty repair facility in the U S or to the Rane factory in the original packaging or a replacement supplied by Rane with
29. ND PAN LEVEL SEND PAN LEVEL PAN LEVEL PAN LEVEL POWER GC QUICK START No one likes to read manuals Everyone likes to just start pushing buttons and turning knobs until the desired results magically emerge That s usually OK and with a very few exceptions damage is unlikely to result from such procedures with the SM82S This product is quite obvious Input LEVEL controls make Inputs louder or not the stereo SENDs make things happen at the LOOP SEND outputs and so on No real magic there You should be aware however that if you want to connect a mono source to the SM82S use only the LEFT Input of a channel so that the mono source will drive both the Left and the Right channels Set the levels of the mixer so that the red lights stay off If they come on you are overdoing it and distortion will result SM82S CONNECTION When connecting the SM82S to other components in your system for the first time leave the power supply for last This will give you a chance to make mistakes and correct them before any damage is done to your fragile speakers and ears If you are making your own cables or experience any hum problems after hookup please refer to the RaneNote Sound System Interconnection supplied with this manual and avail able at rane com INPUTS The SM82S s Inputs are unbalanced This means that standard 14 connectors on the ends of any good quality cable will work well between your signal sources signal processing an
30. R BLACK S SHIELD 11 T RED R BLACK S SHIELD 12 FEMALE RED 2 CONDUCTOR SHIELDED CABLE 2 CONDUCTOR SHIELDED CABLE FEMALE ad 1 CONDUCTOR SHIELDED CABLE FEMALE RED Or FEMALE 1 CONDUCTOR SHIELDED CABLE 2 CONDUCTOR SHIELDED CABLE CROSS COUPLED OUTPUT ONLY CONNECT PIN 1 TO PIN 3 AT THIS END AND SET GROUND LIFT SWITCH TO GROUNDED IF PRESENT FEMALE a rud Y BLACK SHIELD CROSS COUPLED OUTPUT ONLY CONNECT PIN 1 TO PIN 3 AT THIS END AND SET GROUND LIFT SWITCH TO GROUNDED IF PRESENT 1 CONDUCTOR SHIELDED CABLE CROSS COUPLED OUTPUT ONLY CONNECT RING TO SLEEVE AT THIS END AND SET GROUND LIFT SWITCH TO GROUNDED IF PRESENT 2 ROSS COUPLED OUTPUT ONLY CONNECT RING TO SLEEVE AT THIS END AND SET GROUND LIFT SWITCH TO GROUNDED IF PRESENT 1 NC 2 RED 3 BLACK T RED R BLACK S NC T RED S SHIELD T RED S SHIELD T RED S BLACK T RED S BLACK 1 NC 2 RED 3 BLACK T RED R BLACK S NC T RED S BLACK T RED S SHIELD T RED S BLACK T RED S BLACK To Input Interconnection 7 MALE RED RED 1 5 13 2 CONDUCTOR SHIELDED CABLE BLACK XL 2 RED S BLACK NIC SHIELD V 3 BLACK RED RED T RED 14 MP 2 CONDUCTOR SHIELDED CABLE I R BLACK su CIL MES 4 wc Ed CO sse 15 RED 1 CONDUCTOR SHIELDED CABLE RED S SHIELD C JE A
31. Rane s policy is to accommodate rather than dic tate However this document contains suggestions for external wiring changes that should ideally only be implemented by trained technical personnel Safety regulations require that all original grounding means provided from the factory be left intact for safe op eration No guarantee of responsibility for incidental or consequential damages can be provided In other words don t modify cables or try your own version of grounding unless you really understand exactly what type of output and input you have to connect Interconnection 1 Ground Loops Almost all cases of noise can be traced directly to ground loops grounding or lack thereof It is important to understand the mechanism that causes grounding noise in order to effectively eliminate it Each compo nent of a sound system produces its own ground in ternally This ground is usually called the audio signal ground Connecting devices together with the inter connecting cables can tie the signal grounds of the two units together in one place through the conductors in the cable Ground loops occur when the grounds of the two units are also tied together in another place via the third wire in the line cord by tying the metal chas sis together through the rack rails etc These situations create a circuit through which current may flow in a closed loop from one unit s ground out to a second unit and back to the first It is not si
32. all transportation costs and full insurance paid each way by the purchaser or owner LIMITED WARRANTY OUTSIDE THE U S A RANE PRODUCTS ARE WARRANTED ONLY IN THE COUNTRY WHERE PURCHASED THROUGH THE AUTHORIZED RANE DISTRIBUTOR IN THAT COUNTRY AGAINST DEFECTS IN MATERIAL OR WORKMANSHIP THE SPECIFIC PERIOD OF THIS LIMITED WARRANTY SHALL BE THAT WHICH IS DESCRIBED TO THE ORIGINAL RETAIL PURCHASER BY THE AUTHORIZED RANE DEALER OR DISTRIBUTOR AT THE TIME OF PURCHASE Rane Corporation does not however warrant its products against any and all defects 1 arising out of materials or workmanship not provided or furnished by Rane or 2 resulting from abnormal use of the product or use in violation of instructions or 3 in products repaired or serviced by other than authorized Rane repair facilities or 4 in products with removed or defaced serial numbers or 5 in components or parts or products expressly warranted by another manufacturer Rane agrees through the applicable authorized distributor to repair or replace defects covered by this limited warranty with parts or products of original or improved design at its option in each respect if the defective product is shipped prior to the end of the warranty period to the designated authorized Rane warranty repair facility in the country where purchased or to the Rane factory in the U S in the original packaging or a replacement supplied by Rane with all transportation costs and full insurance paid each way
33. at least 3 mm in each pole shall be incorporated in the electrical installation of the building 18 If rackmounting provide adequate ventilation Equipment may be located above or below this apparatus but some equipment like large power amplifiers may cause an unacceptable amount of hum or may generate too much heat and degrade the performance of this apparatus 19 This apparatus may be installed in an industry standard equipment rack Use screws through all mounting holes to provide the best support WARNING To reduce the risk of fire or electric shock do not expose this apparatus to rain or moisture Apparatus shall not be exposed to dripping or splashing and no objects filled with liquids such as vases shall be placed on the apparatus The symbols shown below are internationally accepted symbols WARNING CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN ATTENTION RISQUE DE CHOCS ELECTRIQUE NE PAS OUVRIR that warn of potential hazards with electrical products This symbol indicates that a dangerous voltage constituting a risk of electric shock is present within this unit To reduce the risk of electrical shock do not open the unit No user This symbol indicates that there are important serviceable parts inside Refer servicing to qualified service personnel operating and maintenance instructions in the literature accompanying this unit WARNING This product may contain chemicals known to the State of Califor
34. be used here The Left input is on the Tip Right is on the Ring and the Sleeve is ground LOOP EXPAND INPUT Another 4 TRS stereo Input expands the stereo Loop buses of two SM82Ss so they share the same effects loop A stereo Tip Ring Sleeve cable must be used here Connect the LEFT and RIGHT LOOP SENDS of the first unit to the LOOP EXPAND INPUT of the second SM82S Tip left Ring right LOOP SEND This pair of jacks may drive an effect or similar device which is to be returned to item below If a mono device is used both the Left and Right Send channels of the SM82S are summed together and presented at the LEFT Output if nothing is inserted in the RIGHT Output LOOP RETURN These 4 aux returns may connect the output of a reverb or other effect unit to the Loop bus of the SM82S If no effect is used they can be used as a tenth stereo Input to the mixer in addition to those described in D and Q As with the other stereo Inputs mono signal may be connected to the LEFT input to obtain two channel mono operation MAIN EXPAND OUTPUT This 4 TRS stereo Tip left Ring right Output jack connects one SM82S to another for the purpose of expanding the number of Inputs available Use only a stereo plug in this jack a mono jack or cable will cause loss of Right channel signal and possibly distortion to the Left channel This Output also serves as a fixed pre fader level useful as record outputs or other applications A se
35. by the purchaser or owner ALL REMEDIES AND THE MEASURE OF DAMAGES ARE LIMITED TO THE ABOVE SERVICES IT IS POSSIBLE THAT ECONOMIC LOSS OR INJURY TO PERSON OR PROPERTY MAY RESULT FROM THE FAILURE OF THE PRODUCT HOWEVER EVEN IF RANE HAS BEEN ADVISED OF THIS POSSIBILITY THIS LIMITED WARRANTY DOES NOT COVER ANY SUCH CONSEQUENTIAL OR INCIDENTAL DAMAGES SOME STATES OR COUNTRIES DO NOT ALLOW THE LIMITATIONS OR EXCLUSION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU ANY AND ALL WARRANTIES EXPRESS OR IMPLIED ARISING BY LAW COURSE OF DEALING COURSE OF PERFORMANCE USAGE OF TRADE OR OTHERWISE INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED TO A PERIOD OF TWO 2 YEARS FROM EITHER THE DATE OF ORIGINAL RETAIL PURCHASE OR IN THE EVENT NO PROOF OF PURCHASE DATE IS AVAILABLE THE DATE OF MANUFACTURE SOME STATES OR COUNTRIES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS SO THE ABOVE LIMITATIONS MAY NOT APPLY TO YOU THIS LIMITED WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE COUNTRY TO COUNTRY Warranty 1 WARRANTY PROCEDURE Only Valid in the USA NOTICE You must complete and return the warranty card or register your product online to extend the Warranty from 2 years to 3 years TO VALIDATE YOUR EXTENDED WARRANTY Use the postcard that came in the box with your uni
36. ctors Ch s 1 8 Receive Input Gain Range RFI Input Filters Max Output Level Main Loop Send Output Impedance Main Loop Send Output Design Main Loop Send Output Connectors Output Gain Range Frequency Response THD Noise IM Distortion SMPTE Input Referred Noise Signal to Noise Ratio Crosstalk Overload LED Thresholds Power Supply Requirement Unit Conformity Construction Note 0 dBu 0 775 Vrms Data Sheet 2 Unbalanced 4 mono TS tip sleeve l4 mono TS 4 stereo TRS tip ring sleeve Off to 6 Yes 26 20 Active Balanced Unbalanced Unbalanced Unbalanced TRS Off to 6 20 Hz 20 kHz 015 01 112 98 re 4 dBu 20 kHz BW 76 1 kHz 85 1 kHz 16 100 to 240 CE FCC cULus Steel 175 H 19 W x 5 3 D 5 lb 4 25 x 20 3 x 13 75 8 lb Tip Left Ring Right Balanced Unbalanced Unbalanced Unbalanced Each Output Differential line drivers Unbalanced 4 dBu 20 20 kHz 60 Hz 7 kHz 4 1 4 dBu All inputs max 50 out level balanced Left Right Channel to channel All critical nodes monitored 50 60 Hz 7W 4 4 cm x 48 3 cm x 13 5 cm 2 3 kg 11 cm x 52 cm x 35 cm 3 6 kg ANE Block Diagram SM82S STEREO LINE MIXER
37. d ampli fication For best rejection of nasty things like hum and RF keep input cables under 10 feet 3 meters in length Most sources give you the choice of stereo or mono output The mixer gives you the same choice You will note that nomen clature has been placed beneath the input jacks indicating which is RIGHT and which is LEFT Ifa source is plugged only into the Left jack and not into the Right both Right and Left channels will be fed with the Left Input This allows the use of either stereo or mono sources OUTPUTS The SM82S offers balanced main outputs only This means that you may use them as either balanced or unbalanced the choice being made by the way the connectors are wired It s a good idea to always use a TRS or stereo connector in the outputs no matter which mode you are using If a mono connector is used insert ing it into the output will short the ring to ground and could conceivably cause a small amount of distortion to be placed on the tip While this is not destructive it may be significant WEAR PARTS This product contains no wear parts enough to be audible Balancing therefore requires that both tip and ring be wired to the following device Unbalanced requires only tip and sleeve connected leaving the unused ring open EFFECTS DEVICES External devices which might be used could be either mono in and out while some may be mono in and stereo out while still others
38. d systems home audio also contain these ground loop noise currents However the currents in unbalanced systems never get large enough to affect the audio to the point where it is a nuisance Mixing balanced and unbalanced equipment however is an entirely different story since balanced and unbalanced interconnect are truly not compatible The rest of this note shows several recommended implementations for all of these interconnection schemes The potential or voltage which pushes these noise currents through the circuit is developed between the independent grounds of the two or more units in the system The impedance of this circuit is low and even though the voltage is low the current is high thanks to Mr Ohm without whose help we wouldn t have these problems It would take a very high resolution ohm meter to measure the impedance of the steel chassis or the rack rails We re talking thousandths of an ohm So trying to measure this stuff won t necessarily help you We just thought we d warn you BALANCED INPUTS CHASSIS GROUND GROUND SIGNAL Figure 1a The right way to do it Interconnection 2 The Absolute Best Right Way To Do It The method specified by AES48 is to use balanced lines and tie the cable shield to the metal chassis right where it enters the chassis at both ends of the cable A balanced line requires three separate conduc tors two of which are signal and and one shield see Figure 1a The shi
39. eld serves to guard the sensitive audio lines from interference Only by using balanced line interconnects can you guarantee yes guarantee hum free results Always use twisted pair cable Chas sis tying the shield at each end also guarantees the best possible protection from RFI radio frequency interfer ence and other noises neon signs lighting dimmers Neil Muncy an electroacoustic consultant and seasoned veteran of years of successful system design chairs the AES Standards Committee SC 05 05 working on this subject He tirelessly tours the world giving seminars and dispensing information on how to successfully hook up pro audio equipment He makes the simple point that it is absurd that you cannot go out and buy pro audio equipment from several different manufacturers buy standard off the shelf cable assem blies come home hook it all up and have it work hum and noise free Plug and play Sadly almost never is this the case despite the science and rules of noise free interconnect known and documented for over 60 years see References for complete information It all boils down to using balanced lines only bal anced lines and nothing but balanced lines This is why they were developed Further that you tie the shield to the chassis at the point it enters the chassis and at both ends of the cable more on both ends later Since standard XLR cables come with their shields tied to pin 1 at each end the shells are
40. essaire dans n importe quel cas l appareil est abim si le cordon ou les fiches sont endommag s si du liquide a t renvers ou si des objets sont tomb s sur l appareil si celui ci a t expos la pluie ou l humidit sil ne fonctionne pas correctement ou est tomb 15 La fiche du cordon d alimentation sert brancher le courant alternatif AC et doit absolument rester accessible Pour d connecter totalement l appareil du secteur d branchez le c ble d alimentation de la prise secteur 16 Cet appareil doit tre branch une prise terre avec protection 17 Quand il est branch de mani re permanente un disjoncteur tripolaire normalis doit tre incorpor dans l installation lectrique de l immeuble 18 En cas de montage en rack laissez un espace suffisant pour la ventilation Vous pouvez disposer d autres appareils au dessus ou en dessous de celui ci mais certains tels que de gros amplificateurs peuvent provoquer un buzz ou g n rer trop de chaleur au risque d endommager votre appareil et d grader ses performances 19 Cet appareil peut tre install dans une baie standard ou un chassis normalis pour un montage en rack Visser chaque trou de chaque oreille de rack pour une meilleure fixation et s curit ATTENTION afin d viter tout risque de feu ou de choc lectrique gardez cet appareil loign de toute source d humidit et d claboussures quelles qu elles soient L appareil doit galement tre
41. he receiving end is capacitively coupled See Neutrik s EMC XLR for example The fact that many modern day install ers still follow this one end only rule with consistent success indicates this and other acceptable solutions to FEMALE 5 RED O BLACK SHIELD Interconnection 4 2 CONDUCTOR SHIELDED CABLE Figure 3 Test cable RF issues exist though the increasing use of digital and wireless technology greatly increases the possibility of future RF problems If you ve truly isolated your hum problem to a spe cific unit chances are even though the documentation indicates proper chassis grounded shields the suspect unit is not internally grounded properly Here is where special test cable assemblies shown in Figure 3 really come in handy These assemblies allow you to connect the shield to chassis ground at the point of entry or to pin 1 or to lift one end of the shield The task becomes more difficult when the unit you ve isolated has multi ple inputs and outputs On a suspect unit with multiple cables try various configurations on each connection to find out if special cable assemblies are needed at more than one point See Figure 4 for suggested cable assemblies for your particular interconnection needs Find the appropri ate output configuration down the left side and then match this with the correct input configuration across the top of the page Then refer to the following pages for a recommended wir
42. iginal value This guarantees that as the sound is panned from one side to the other it maintains equal loudness power for all positions BALANCE In its center detent Left and Right signals to each channel are allowed to pass at their original relative levels there fore preserving the stereo image from devices connected to both of the Inputs When the control is moved vertically toward the position the Right channel level is decreased while the Left channel level is maintained The opposite occurs if the control is moved from the detent down toward the R 4 Input SEND Level controls determine the amount of Post Fade stereo Input is fed to the Loop Send buses Each Input s stereo SEND is summed on this bus and is available at the respective LEFT and RIGHT LOOP SENDS on the rear of the mixer 5 RETURN LEVEL control is a rotary stereo attenuator that controls the amount of Return which is to be added to the Main Output The unity gain position of this control is located at 7 5 6 RETURN OverLoad indicator glows red whenever the return levels exceed a level of 4 dB below clipping RETURN PAN control is a vertical slider that controls the effect or source connected to the LOOP RETURN in the same way the Input PAN controls work see above OUTPUT LEVEL control is a rotary stereo attenuator that controls the final signal Level at the main OUTPUT jacks The unity gain position of this control is located at 7 5
43. ing diagram Ground Lifts Many units come equipped with ground lift switches In only a few cases can it be shown that a ground lift switch improves ground related noise Has a ground lift switch ever really worked for you In reality the presence of a ground lift switch greatly reduces a unit s ability to be properly grounded and therefore im mune to ground loop hums and buzzes Ground lifts are simply another Band Aid to try in case of ground ing problems It is true that an entire system of prop erly grounded equipment without ground lift switches is guaranteed yes guaranteed to be hum free The problem is most equipment is not both internally and externally AC system wise grounded properly Most units with ground lifts are shipped so the unit is grounded meaning the chassis is connected to audio signal ground This should be the best and is the safest position for a ground lift switch If after hooking up your system it exhibits excessive hum or GROUND CLIP buzzing there is an incompatibility somewhere in the system s grounding configuration In addition to these special cable assemblies that may help here are some more things to try 1 Try combinations of lifting grounds on units sup plied with lift switches or links It is wise to do this with the power off 2 If you have an entirely balanced system verify all chassis are tied to a good earth ground for safety s sake and hum protection Complete
44. ither Left or Right signal As the controls are moved toward one channel the level of the other channel is only reduced HIGH NOISE IMMUNITY One of the most unusual features of the SM82S is its inher ent immunity from noise All eight of the stereo inputs may be turned all the way up without increasing the internal noise of the mixer This is critical due to the wide variation in output levels found in musical instruments and tape devices A fairly low level guitar may be combined in the same system with a high level synthesizer without any undesirable side effects The SM82S eliminates the concerns normally associated with mixing so called 10 dBV units with 4 dBu types Block Diagram INPUT OUTPUT OUTPUT OVERLOAD LEVEL OVERLOAD INPUT OL OUTPUT OL BALANCED RIGHT eu 7 6 d RIGHIMAIN 0 dB 6 dB gt _ Hz RIGHT L RIGHT SEND v ph I SUMMING CHANNEL 1 OUTPUTS RFI V UEEEMAIN 0 dB 697 LEFT VT FILTER INPUT 46 dB LEFT SEND sd BALANCED MONO NPUT SEND DRIVERS o y Ay BALANCE LEVEL o LEFT CH2 rh RECEIVE OVERLOAD RIGHT RING RECEIVE r1 CH3 MAIN KEN LEVEL LEFT TA EXPAND RIGHT INPUT CH4 rh RIGHT LOOP 0 dB RETURNS CHS 4 SUMMING
45. ly unbalanced systems never earth ground anything except cable TV often a ground loop source If you have a mixed balanced and unbalanced system do yourself a favor and use isolation transformers or if you can t do that try the special cable assemblies described here and expect it to take many hours to get things quiet May the Force be with you 3 Balanced units with outboard power supplies wall warts or bumps in the line cord do not ground the chassis through the line cord Make sure such units are solidly grounded by tying the chassis to an earth ground using a star washer for a reliable contact Rane always provides this chassis point as an exter nal screw with a toothed washer Any device with a 3 prong AC plug such as an amplifier may serve as an earth ground point Rack rails may or may not serve this purpose depending on screw locations and paint jobs Floating Pseudo and Quasi Balancing During inspection you may run across a output called floating unbalanced sometimes also called psue do balanced or quasi balanced In this configuration the sleeve of the output stage is not connected inside the unit and the ring is connected usually through a small resistor to the audio signal ground This allows the tip and ring to appear as an equal impedance not quite balanced output stage even though the out put circuitry is unbalanced Floating unbalanced often works to drive either a balanced or unbalanced inpu
46. may be stereo on both ends The 5 825 easily accom modates all of these varieties If your effect is mono on both ends connect its input to the SM82S LEFT LOOP SEND and the effects output to the SM82S LEFT LOOP RETURN This configuration will sum Right and Left Loop Outputs to the mono effect input and will sum the mono effect output to the Left and Right Input buses A mono in stereo out device would connect to the loop outputs in the same way however the stereo outputs connect to the respective LEFT and RIGHT LOOP RETURNS EXPANDING Connecting two or more SM82Ss together to achieve more than eight stereo Inputs requires that a stereo cable tip ring sleeve be connected between the MAIN EXPAND OUTTUT of the first mixer and the MAIN EXPAND INPUT of the second 32 inputs will then appear at the main OUTPUT of mixer number two Only the first sixteen Inputs will be available at the main Outputs of mixer number one Should you wish to have all Loop buses tied connect the LOOP SENDS of mixer one to the LOOP EXPAND INPUT of mixer two All sixteen stereo sends will then become active at the LOOP SENDS of the second mix er The expand Inputs and Outputs are unbalanced signals so to prevent hum keep expand cables under 10 feet 3 meters in length Manual 1 FRONT PANEL DESCRIPTION TO TS TI t 2 3 4 6 7 8 RETURN C oL r o L o 10 L o L L o 9j on L
47. mply the presence of this current that creates the hum it is when this current flows through a unit s audio signal ground that creates the hum In fact even without a ground loop a little noise current always flows through every inter connecting cable i e it is impossible to eliminate these currents entirely The mere presence of this ground loop current is no cause for alarm if your system uses properly implemented and completely balanced inter connects which are excellent at rejecting ground loop and other noise currents Balanced interconnect was developed to be immune to these noise currents which can never be entirely eliminated What makes a ground loop current annoying is when the audio signal is af fected Unfortunately many manufacturers of balanced audio equipment design the internal grounding system BALANCED OUTPUTS FEMALE RED RED 2 3 lt o BLACK 2 CONDUCTOR SHIELDED CABLE BLACK 1 SHIELD SHIELD O CHASSIS GROUND improperly thus creating balanced equipment that is not immune to the cabling s noise currents This is one reason for the bad reputation sometimes given to bal anced interconnect second reason for balanced interconnect s bad reputation comes from those who think connecting unbalanced equipment into superior balanced equip ment should improve things Sorry Balanced inter connect is not compatible with unbalanced The small physical nature and short cable runs of completely unbalance
48. nd return cable can be ideal for this output to drive a second amplifier or recorder See the dia gram below C Main BALANCED OUTPUT These balanced Tip Ring Sleeve jacks connect the main Outputs of the SM82S to a power am plifier or to additional signal processing As is the AES standard with all Rane balanced outputs using 14 TRS jacks the Tip is the Ring is and the Sleeve is ground Power connector The internal universal switching power supply operates on any AC mains 100 to 240 VAC 50 or 60 Hz most places in the world that is required when traveling is the appropriate line cord LEFT LEFT RIGHT SHIELD 1 R S 1 CONDUCTOR SHIELDED CABLE RIGHT SHIELD A Send Return cable works well to connect other equipment to any of the Expand Inputs or Outputs i SHIELD Manual 3 OPERATING INSTRUCTIONS CIRCUIT DESCRIPTION Learning to operate the SM82S might be a bit easier if you glance at the Block Diagram below eight stereo Inputs operate in exactly the same way Signal applied to the Inputs is acted on by a radio interference filter we have assumed that local broadcasts should not be a part of your music and is then routed to a stereo LEVEL control If you are using a mono source con nect it only to the LEFT Input to send this mono signal to both the Left and Right sides of the input circuitry The output of the Level control
49. nding prong The wide blade or third prong is provided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet 10 Protect the power cord and plug from being walked on or pinched particularly at plugs convenience receptacles and the point where it exits from the apparatus 11 Only use attachments and accessories specified by Rane 12 Use only with the cart stand tripod bracket or table specified by the manufacturer or sold with the apparatus When a cart is used use caution when moving the cart apparatus combination to avoid injury from tip over 13 Unplug this apparatus during lightning storms or when unused for long periods of time 14 Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped 15 The plug on the power cord is the AC mains disconnect device and must remain readily operable To completely disconnect this apparatus from the AC mains disconnect the power supply cord plug from the AC receptacle 16 This apparatus shall be connected to a mains socket outlet with a protective earthing connection 17 When permanently connected an all pole mains switch with a contact separation of
50. nia to cause cancer or birth defects or other reproductive harm NOTE This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna ncrease the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help CAUTION Changes or modifications not expressly approved by Rane Corporation could void the user s authority to operate the equipment This Class B digital apparatus complies with Canadian ICES 003 Cet appareil num rique de la classe B est conforme la norme NMB 003 du Canada INSTRUCTIONS DE S CURIT Lisez ces instr
51. put level control shall be provided In addition stereo slider type balance controls shall be provided for all inputs and outputs along with stereo slider type send level controls on all inputs Complete stereo expansion capabilities shall be provided to allow any number of similar units to be coupled together The inputs shall be high impedance 100 unbalanced designs terminated with TS tip sleeve connectors The outputs shall be active differentially balanced with bal anced output impedance equal to 200 Q terminated with TRS tip ring sleeve connectors RFI filters shall be provided The unit shall be capable of operation by means of its own built in universal power supply operating at 100 240 VAC and meet CE requirements The unit shall be UL and cUL listed The unit shall be constructed entirely from cold rolled steel and mount into a standard EIA relay rack occupying 1 rack space The unit shall be a Rane Corporation Model SM82S Data Sheet 3 SM82S STEREO LINE MIXER Rear Panel RANE LEFT SM82S IAL AUDIO x MAIN RANE CORPORATION C EQUIPMENT 24T EXPAND soreo 7 WATTS OUTPUT LOOP RETURN LOOP SEND n US BALANCED L p e e RIGHT am r RIGHT fe C amp TIP L RING R LEFT MONO RIGHT LEFT MONO RIGHT Studio Example 8 STEREO INPUTS 16 CD PLAYER PHONE OR MP3 ALL INPUTS ARE UNBALANCED
52. rol and a Features 8 Stereo Input Channels e 1 Stereo Auxiliary Send e 1 Stereo Auxiliary Return Stereo Balance Mono Pan Controls fe SM82S STEREO LINE MIXER 6 7 8 I UH ue SEND PAN LEVEL RETURN OUTPUT 7 SM82S STEREO MIXER SEND PAN LEVEL SEND PAN LEVEL PAN LEVEL PAN LEVEL POWER 7 slide control for left to right Balance The output stage includes a rotary Output Level control and a slide control for left to right Balance The human engineering applied to the SM82S makes it extremely easy to operate The segregation of function between rotary and slide controls rotary for all input and output Levels and slide for Balance and Send makes it simple to use even in the dark The SM82S is fully expandable using the 4 TRS Main Ex pand Input and Output jacks Expansion is as simple as connect ing a stereo jumper cable from the first units Expand Output jack to the second unit s Expand Input jack Now two SM82S units create a 16 channel stereo 32 input line level Mixer in just two rack spaces Or 24 channel stereo 48 input Mixer in just three rack spaces You get the idea Balanced Stereo Output Expandable to from other Mixers Internal Universal Voltage Power Supply 100 240 VAC Data Sheet 1 SM82S 2 STEREO LINE MIXER ANE Specification Limit Units Conditions Comments Input Impedance Ch s 1 8 Receive Input Level Nominal Minimum Input Design Input Conne
53. s tension l utilisateur est encourag essayer de corriger cette interf rence par une ou plusieurs des mesures suivantes R orienter ou d placer l antenne de r ception Augmenter la distance entre l quipement et le r cepteur Connecter l quipement une sortie sur un circuit diff rent de celui sur lequel le r cepteur est branch Consulter un revendeur ou un technicien radio TV exp riment ATTENTION Les changements ou modifications non express ment approuv s par Rane Corporation peuvent annuler l autorit de l utilisateur manipuler cet quipement et rendre ainsi nulles toutes les conditions de garantie Cet appareil num rique de classe B est conforme la norme Canadienne ICES 003 Cet appareil num rique de classe B est conforme la norme Canadienne NMB 003 RANE SM82S RANE OPERATORS MANUAL STEREO MIXER CD 1 2 3 4 5 OF l t 9 EJ L 2 wj 2 E 9 4 6 4 6 ess d o zl 476 g po RANE sm Ls cf et sf s 5 cf i 2 a 1 2 8 112 8l 12 8 ki E 10 9 x 0 1 R o 10 9 R o 10 Li 10 SEND PAN LEVEL SEND PAN LEVEL SEND PAN LEVEL SEND PAN LEVEL SEND PAN LEVEL 7 8 RETURN OUTPUT CD Qf 9i 9 9 oL oL oL oL A oL zz 4o zz 4 6 zz 4 6 4 6 M zi zh SH ZH MEUM Sls 5 825 QUES oto UR 200 R o 10 amp o 2 SEND PAN LEVEL SE
54. t depending if a TS or TRS standard cable is plugged into it When it hums a special cable is required See drawings 11 and 712 and do not make the cross coupled modification of tying the ring and sleeve together Winning the Wiring Wars Use balanced connections whenever possible with the shield bonded to the metal chassis at both ends Transformer isolate all unbalanced connections from balanced connections Use special cable assemblies when unbalanced lines cannot be transformer isolated Any unbalanced cable must be kept under 10 feet 3 m in length Lengths longer than this will ampli fy all the nasty side effects of unbalanced circuitry s ground loops Summary If you are unable to do things correctly i e use fully balanced wiring with shields tied to the chassis at both ends or transformer isolate all unbalanced signals from balanced signals then there is no guarantee that a hum free interconnect can be achieved nor is there a definite scheme that will assure noise free operation in all configurations References 1 Neil A Muncy Noise Susceptibility in Analog and Digi tal Signal Processing Systems presented at the 97th AES Convention of Audio Engineering Society in San Fran cisco CA Nov 1994 Grounding Shielding and Interconnections in Analog amp Digital Signal Processing Systems Understanding the Basics Workshops designed and presented by Neil Muncy and Cal Perkins at the 97th AES
55. t or go to www rane com and click on New Product Registration Fill out the warranty completely being sure to include the model and serial number of the unit since this is how warranties are tracked If your Rane product was purchased in the USA mail the completed card or register online with to Rane Corporation within 10 days from the date of purchase If you purchased the product outside the USA you must file your warranty registration with the Rane Distributor in that country It is advised that you keep your bill of sale as proof of purchase should any difficulties arise concerning the registration of the warranty card NOTICE IT IS NOT NECESSARY TO REGISTER IN ORDER TO RECEIVE RANE CORPORATION S STANDARD TWO YEAR LIMITED WARRANTY WARRANTY REGISTRATION is made and tracked by model and serial numbers only not by the purchasers or owners name Therefore any warranty correspondence or inquires must include the model and serial number of the product in question Be sure to fill in the model and serial number in the space provided below and keep this in a safe place for future reference WARRANTY SERVICE MUST BE PERFORMED ONLY BY AN AUTHORIZED RANE SERVICE FACILITY LOCATED IN THE COUNTRY WHERE THE UNIT WAS PURCHASED OR if product was purchased in the USA AT THE RANE FACTORY IN THE USA If the product is being sent to Rane for repair please call the factory for a Return Authorization number We recommend advance notice be given to the repair facility
56. uctions Gardez pr cieusement ces instructions Respectez les avertissements Suivez toutes les instructions Ne pas utiliser pr s d une source d eau Ne nettoyer qu avec un chiffon doux N obstruer aucune vacuation d air Effectuez l installation en suivant les instructions du fabricant Ne pas disposer pr s d une source de chaleur c d tout appareil produisant de la chaleur sans exception N CN VA k ND Ne pas modifier le cordon d alimentation Un cordon polaris poss de 2 lames l une plus large que l autre Un cordon avec tresse de masse poss de 2 lames plus une 3 pour la terre La lame large ou la tresse de masse assurent votre s curit Si le cordon fourni ne correspond pas votre prise contactez votre lectricien 10 Faites en sorte que le cordon ne soit pas pi tin ni au niveau du fil ni au niveau de ses broches ni au niveau des connecteurs de vos appareils 11 N utilisez que des accessoires recommand s par Rane 12 N utilisez que les l ments de transport stands pieds ou tables sp cifi s par le fabricant ou vendu avec l appareil Quand vous utlisez une valise de transport prenez soin de vous d placer avec cet quipement avec prudence afin d viter tout risque de blessure 13 D branchez cet appareil pendant un orage ou si vous ne l utilisez pas pendant un certain temps 14 Adressez vous du personnel qualifi pour tout service apr s vente Celui ci est n c
57. y connected with fully balanced units starts a pattern of hum and unde sirable operation requiring extra measures to correct the situation The Next Best Right Way To Do It The quickest quietest and most foolproof method to connect balanced and unbalanced is to transformer isolate all unbalanced connections See Figure 2 Many manufacturers provide several tools for this task including Rane Consult your audio dealer to ex plore the options available The goal of these adaptors is to allow the use of standard cables With these transformer isolation boxes modification of cable assemblies is unnecessary Virtually any two pieces of audio equipment can be successfully interfaced without risk of unwanted hum and noise UNBALANCED BALANCED NOT CONNECTED AT CHASSIS PLASTIC JACK sss TRANSFORMER 1 4 CASE LUG MAY TIP SLEEVE CONNECT TO CHASSIS NOT REQUIRED zum EARTH GROUNDED CHASSIS IS METAL ENCLOSURE GROUNDED TO PIN 1 Figure 2 Transformer Isolation Interconnection 3 Another way to create the necessary isolation is to use a direct box Originally named for its use to convert the high impedance high level output of an electric guitar to the low impedance low level input of a re cording console it allowed the player to plug directly into the console Now this term is commonly used to describe any box used to convert unbalanced lines to balanced lines The Last Best Right Way To Do It If transformer
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