Tapco T-231 User's Manual
Contents
1. 19 f forget visit our website at www tapcogear com for more information about this and other TAPCO products Introduction Thank you for choosing a Tweeq 31 band graphic equalizer by Mackie The TAPCO product line hails back to the days of TAPCO Corporation Greg Mackie s first company revolutionized the audio industry back in 1969 with the very first 6 channel mixer specifically designed for keyboards and rock N roll PA In essence redefined the price performance ratio and made high quality professional audio mixers accessible virtually anyone Today is reborn with the same ideals and is backed by the world class engineering and manufacturing horsepower of z Mackie The TAPCO 231 is the first graphic equalizer in the TAPCO by version of Greg Mackie family About Graphic Equalizers The tone controls on your home stereo system typically have a bass and treble control and sometimes a midrange control that you use to boost or cut a broad band of frequencies When you leave the controls in the center position they do nothing A graphic equalizer works in much the same way except that it has many more controls that operate over much narrower frequency bands The Te231 has 31 controls that boost or cut different frequencies each centered on ISO standard frequencies ranging from 20 Hz to 20 kHz and affecting 1 3 of an octave2. own er manual Tees by MACKIE CAUTION AVIS RISK OF ELECTRIC SHOCK DO NOT OPEN RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER OR BACK NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED PERSONNEL ATTENTION POUR EVITER LES RISQUES DE CHOC ELECTRIQUE NE PAS ENLEVER LE COUVERCLE AUCUN ENTRETIEN DE PIECES INTERIEURES PAR L USAGER CONFIER L ENTRETIEN AU PERSONNEL QUALIFIE AVIS POUR EVITER LES RISQUES D INCENDIE OU D ELECTROCUTION N EXPOSEZ PAS CET ARTICLE A LA PLUIE OU A L HUMIDITE The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons Le symbole clair avec point de fl che l int rieur d un triangle quilat ral est utilis pour alerter l utilisateur de la pr sence l int rieur du coffret de voltage dangereux non isol d ampleur suffisante pour constituer un risque d l ctrocution The exclamation point within an equilateral triangle is intended to alert the user of the presence of important operating and maintenance servicing instructions in the literature accompanying the appliance Le point d exclamation l int rieur d un triangle quilat ral est employ pour
3. 2 4 ena OUO NN EM ERN MAC QUE EIOOKUD DICICIGIDPIS 8 Typical Hookup In line with Main Outputs 8 Alternate Hookup Individual Channel or Main Inserts 8 lt SS T T Tr 9 FRONT PANEL FEATURE S Lene eds 9 9 2 LEVE subicere eee 9 OS Erro depu toe a m cance 9 AM LOWPASS Pt 9 9 MeL Om 9 9 De POWER ceecatossteb went E d 9 REAR PANEL FEATURE S die rit 10 9 Line Cord Socket and 10 5 10 HFT OWI 10 IP xe NIU TM 10 TO INPUT sicui Pkt o 10 GENERAL PRECAUTIONS AND CONSIDERATIONS 11 RACK MOUNTING zorian n DI o 1 Thermal Considerations 407 4 1 AC Power 5 5 444 1 Appendix A Service Information 12 TI 12 a AI 12 REDOM Er 13 BE CONMESCTIONS d jvc aac 14 15 ODECA NONS 15 DIGON 16 Eu EPA Pasa hn 18
4. Je 16 NOSE VESIE ZHOS AOPC 002 2v 2809 7011 01 3Y HIMANO Svid IN 3001413913 30H 30 3010818 S Ivanava BNNOStEd 01 3OISNI SLAVA 318Y321AEES HASN ON tBAO JAONAY 101 00 HO OL 5181 3S0dXa LON 00 HO 40 SIH IHL ONCH OL 9 N3dO LON OQ 51315513 JO MISTY NOILNV INO2 HVv3S9O2dVv L MAWM 0020 J1LHSIHAdOO Sa3i9O10NHO2aL ANOT S5HvIABHOVvHu lL i 52wviw ONV NV 3rYOIldHgsvz VNIHO NI Cin LoSvanmwwviwv VSN VM 3TTHIANIGOOM NI 537104 AAOOHS OL LHOnOHS peyoedsuj puejureuy ANL 3SN ON k S NINHWVAA ISNNVHO 8 NED AG Av ASLE AGe AG ADL AL 008 059 OOS 00 GLE 006 09 Seb OOL 08 13431 10e ASL AOL ZHPISL zL SPcL 8 9 ee oeo e 74 SSVdA8 SSVd MO1 SSVd IH apg zHX9L e u3azrivnoa 3iIHdvH9 aNva re SSVdA8 SSVd MOl SSVd IH T3 31 Oc AGL AOL AB AS 17 Frequency Chart This chart shows the frequency range covered by various instruments and voices Typical Frequency of each Instrument and Voice Middle C CDEFGABCDEFGABCDEFGABCDEFGABCDEFGABCDEFGABCDEFGABCDEFGABCDEFGABC 18 20 25 31 40 50 6
5. Constant Q Design The Te231 is designed with constant filters Ihe Q of a filter refers to its quality A filter with a low affects a broader band of frequencies than a filter with a high Q Q fc BW for you technoids Constant means that as a slider is boosted or cut the bandwidth of the filter The skirt of the affected frequencies remains the same Lower quality proportional Q filters have a broader bandwidth as the filter is boosted or cut which can extend out to an octave or more Whazzit Used For There are a number of uses for graphic equalizers in a sound system can be used to correct the frequency response of a loudspeaker or to adjust for resonant peaks and dips in a room Sometimes they are used to simply bring out the characteristics of a voice or instrument to improve the intelligibility and articulation of the sound In any case please remember that a graphic equalizer is a tool that can be used fo improve the overall sound but it cannot make up for frequency response deficiencies caused by poor system design or poor acoustics and get the best possible sound from the system before attempting use equalization by paying attention proper gain structure and loudspeaker placement Often times just moving a loudspeaker to a different position can have a dramatic effect on the overall sound in the room Probably the most common use of a graphic equalizer is placing it in line between the mixing b
6. not use this polarized plug with an extension cord receptacle or other outlet unless the blades can be fully inserted to prevent blade exposure Pour pr evenir les chocs lectriques ne pas utiliser cette fiche polarise avec un prolongateur un prise de courant ou une autre sortie de courant sauf si les lames peuvent tre ins r es fond sans laisser aucune pariie d couvert 15 16 17 Grounding or Polarization Precautions should be taken so that the grounding or polarization means of this product is not defeated Power Precaution Unplug this product during lightning storms or when unused for long periods of time This apparatus does not exceed the Class A Class B whichever is applicable limits for radio noise emissions from digital apparatus as set out in the radio interference regulations of the Canadian Department of Communications ATTENTION Le pr sent appareil num rique n met pas de bruits radio lectriques d passant las limites applicables aux appareils num riques de class A de class B selon le cas prescrites dans le r glement sur le brouillage radio lectrique dict par les ministere des communications du Canada WARNING To reduce the risk of fire or electric shock do not expose this appliance rain or moisture 18 Exposure to extremely high noise levels may cause permanent According to OSHA any exposure in excess of these permissible limits hearing loss Individual
7. the POWER switch illuminated If not make sure the AC outlet is live If so refer to No Sound below e ls the fuse blown If the POWER LED on the front panel is not illuminated and you are certain that the AC outlet is live if is possible the fuse has blown To remove and replace the fuse 1 Disconnect the line cord from the IEC socket 2 Remove the fuse drawer by prying it open with small screwdriver It will slide all the way out 3 Remove the fuse and replace it with an equivalent type fuse 315 milliamp slo blo T315 A 250 V Note The same fuse is used for both 115 VAC and 230 VAC operation 4 Replace the fuse drawer by pushing it all the way back into the IEC socket 5 Reconnect the line cord and turn the POWER switch on If two fuses blow in a row then something is wrong see the Repair section on the next page to find out what to do No Sound e 5 the signal source turned up Make sure the signal level from the mixing console or whatever device immediately precedes the Te231 is high enough to produce sound through the system e Are you using the Te231 with an insert plug in an insert jack Make sure that you are using an insert cable and not a mono Y cable Poor sound e 5 it loud and distorted Turn down the signal coming from the mixer or signal source e Is the input connector plugged completely into the jack Make sure all connections are good and sound e Switch the BYPASS switch
8. the RA number please let Tech support know if you need new packaging You can order new packaging through our parts department LOUD Technologies is not responsible for any damage that occurs due to non factory packaging Include a legible note stating your name shipping address no P O boxes daytime phone number RA number and a detailed description of the problem including how we can duplicate it Write the RA number in BIG PRINT on top of the box Units sent to us without the RA number will be refused Ship the Te231 to us We suggest insurance for all forms of cartage Ship to this address TAPCO SERVICE DEPARTMENT 16220 Wood Red Road NE Woodinville WA 98072 We ll try to fix the Te231 within five business days Ask Tech Support for the latest turn around times when you call for your RA number The Te231 must be packaged in its original packing box and must have the RA number on the box Once it s repaired we ll ship it back the same way in which it was received This paragraph does not necessarily apply to non warranty repair Lonely Looking for that special someone Do you have a question about your TAPCO product Please call our Technical Support folks at 1 877 827 2669 Monday to Friday from 7 am to 5 pm PST After hours visit www tapcogear com and look under Support or e mail us at techmail tapcogear com Appendix B Connections XLR Connectors The inputs and outputs use 3 pin male an
9. 120 VAC 60 Hz Europe 240 VAC 50 Hz Japan 100 VAC 50 60 Hz Korea 220 VAC 60 Hz Fuse 315 mA 100 240 VAC Physical Dimensions and Weight Height 3 5 in 89 mm Width 19 0 in 483 mm Depth 8 7 in 220 mm Weight 9 5 Ib 4 3 kg Disclaimer since we are always striving make our products better by incorporating new and improved materials components and manufacturing methods we reserve the right to change these specifications at any time without notice 15 T 231 Block Diagram This outlines the signal flow inside the Te231 IHNNVHO CD CD vou INdLNO GSONV1IVEaNn 591 INdLNO 4 H 10 INdLNO INN GSONV IVE vou INdLNO ANN GSONV1IVEaNn 591 INdLNO 4 27 GaONV IVa 1041450 j SSVdAd 1041450 INVHOVIG 651 YAWNYOASNVYL OOdVL H3MOd 1vGaIOHOL AOE ASLL 1097195 2v H3MOd dsnd WOU Q INdNI INN GSONVIVENN SSVd MO71 dari SSVd IH 31 c2 TANNVHO Q3oONV vg He 50 ED n TAS GSONV1VE IHNNVHO OIHd VHD ap 9 Ce IAdNI INT GSONVIVENN Yal Yal SHL SSVd MO71 SSYd IH finaniann spreto ED nanan TAS Q3ONV IVH TANNVHO 59917114 RT
10. 2 80 100 125 160 200 250 320 400 500 640 800 1K 1 3K1 6K 2K 2 5K3 1K 4K 5K 6 2K 8K 10K 13K 16K 20K 20 25 31 40 50 62 80 100 125 160 200 250 320 400 500 640 800 1K 1 3K 1 6K 2K 2 5K 3 1K 4K 5K 6 2K 8K 10K 13K 16K 20K Human Hearing Range VOCAL Soprano Contralto Baritone Bass WOODWIND Piccolo Flute Oboe Clarinet in B flat or A Clarinet in E flat Bass Clarinet Basset Hom English Horn Bassoon Double Bassoon BRASS Soprano Saxophone Alto Saxophone Tenor Saxophone Baritone Saxophone Bass Saxophone Trumpet in C Trumpet in F Alto Trombone Tenor Trombone Bass Trombone Tuba Euphonium STRINGS Violin Viola Cello Double Bass Guitar KEYBOARDS Pianoforte Organ PERCUSSION Celesta Timpani Xylophone FREQUENCY TAPCO LIMITED WARRANTY A LOUD Technologies Inc warrants all materials workmanship and proper operation of this TAPCO product for a period of one year from the original date of purchase If any defects are found in the materials or workmanship or if the product fails to function properly during the applicable warranty period LOUD Technologies at its option will repair or replace the product This warranty applies only to equipment sold and delivered within the U S by LOUD Technologies or its authorized dealers Failure to register online or return the product registration card will not void the 1 year warranty Service and repairs of TAPCO products are to be performed only at the factory OR
11. NTY CLAIM some states do not allow exclusion or limitation of incidental special or consequential damages or limitation on how long warranties last so some of the above limitations and exclusions may not apply to you This warranty provides specific legal rights and you may have other rights which vary from state to state Please keep your sales receipt in a safe place Mackie and TAPCO are registered trademarks of LOUD Technologies Inc Tweeq is a trademark of LOUD Technologies Inc All other brand names mentioned are trademarks or registered trademarks of their respective holders and are hereby acknowledged 2004 LOUD Technologies Inc All Rights Reserved 19
12. SONNEL T p AVIS RISQUE DE ELECTRIQUE NE PAS OUVRIR 250 RATED INPUT 125W B BAL BAL 55 Ba Se s UNBAL 4 RETURN emm TO CHANNEL OR MAIN INSERT SEND e231 Features 20 25 31 5 40 50 63 80 3100 125 160 200 250 400 500 630 800 1k 1 25k 1 6 2k 2 5 3 15k 4k 5k 6 3k 8k 10k 12 5k 16k 20k LEVEL 20 25 315 40 50 63 80 100 125 160 200 250 315 400 500 630 800 1k 1 25k 1 6k 2k 345k 4k 5k 6 3k 8k 10k 12 5k 16k 20k LEVEL FRONT PANEL FEATURES The controls for Channels 1 and 2 are the same so these descriptions apply to both channels 1 EQ Sliders When the EQ sliders are in the center position they have no effect on the signal Move a slider up or down to boost or cut a particular frequency by up 12 dB x6 dB when the RANGE switch is set to 6 2 Input LEVEL Use the Input LEVEL control to adjust the gain of the signal as it passes through the Te231 When the Input LEVEL control is in the center position it provides no gain unity gain When the slider is all the way down the signal is off and all the way up provides 17 dB of gain 3 HI PASS This button is used to roll off the frequencies below 40 Hz The LED below the button lights to indicate when the HI PASS filter is turned on This is useful to reduce stage rumble low frequency noise from footsteps picked up by microphones
13. after year Here s a quick glance at the features packed into the Te231 2 channel 31 band graphic equalizer with constant Q circuitry and great sound quality e Switchable 6 and 12 dB control range for wide or fine tweaking High pass filter 40 Hz to remove unwanted low frequencies Low pass filter 16 kHz to remove unwanted high frequencies e Bypass switch allows quick comparisons e Independent signal clip indicators on each channel e Input gain control for EQ signal compensation e Balanced 1 4 TRS and XLR and unbalanced RCA input and output jacks e Selectable line voltage Hookup Diagrams Typical Hookup In line with Main Outputs FROM MIXING CONSOLE LEFT AND RIGHT MAIN OUTPUTS TO POWER AMPLIFIER POWERED SPEAKERS INPUTS Alternate Hookup Individual Channel or Main Inserts 42 RETURN c TO CHANNEL OR MAIN INSERT SEND REPLACE FUSE AS MARKED qp BUT IN SERIAL DATE CODE Rhein j JARNING T v V J us Nb ames BROUGHT TO YOU BY THE GROOVY FOLKS IN WOODINVILLE WA USA M cd D MANUFACTURED IN CHINA FABRIQUE AU CHINE TAPCO AND MACKIE ARE REGISTERED TRADEMARKS OF BALUNBAL BAL EAE LOUD TECHNOLOGI COPYRIGHT 2003 OUT TAPCOGEAR CO CHANNEL 2 BN OUT IN REK cs EN WARNING REDUCE THE RISK OF FRE OR ELECTRIC SHOCK N f TO RAN OR MOISTURE DO NOT REMOVE O Mi PER
14. alerter les utilisateurs de pr sence d instructions importantes pour le fonctionnement et l entretien service dans le livret d instruction accompagnant l appareil INSTRUCTIONS Read Instructions All the safety and operation instructions should be read before this product is operated 2 Retain Instructions The safety and operating instructions should be kept for future reference 3 Heed Warnings All warnings on this product and in these operating instructions should be followed 4 Follow Instructions All operating and other instructions should be followed 5 Water and Moisture This product should not be used near water for example near a bathtub washbowl kitchen sink laundry tub in a wet basement near a swimming pool etc 6 Cleaning Clean only with a dry cloth 7 Ventilation This product should be situated so that its location or position does not interfere with its proper ventilation For example the Component should not be situated on a bed sofa rug or similar surface that may block any ventilation openings or placed in a built in installation such as a bookcase or cabinet that may impede the flow of air through ventilation openings PORTABLE CART WARNING Carts and stands The Component should be used only with a cart or stand that is recommended by the manufacturer A Component and cart combination should be moved with care Quick Stops excessive force and u
15. at a factory authorized service center Unauthorized service repairs or modification will void this warranty obtain service please follow the instructions found on page 13 LOUD Technologies Inc and Authorized TAPCO service Centers reserve the right to inspect any products that may be the subject of any warranty claims before repair or replacement is carried out LOUD Technologies and Authorized TAPCO Service Centers may at their option require proof of the original date of purchase in the form of a dated copy of the original dealer s invoice or sales receipt Final determination of warranty coverage lies solely with LOUD Technologies Inc or its Authorized Service Centers TAPCO products returned to LOUD Technologies and deemed eligible for repair or replacement under the terms of this warranty will be repaired or replaced within thirty days of receipt by LOUD Technologies at our rainforest factory complex LOUD Technologies may use refurbished parts for repair or replacement of any product Products returned to LOUD Technologies that do not meet the terms of this Warranty will be repaired and returned C O D with billing for labor materials return freight and insurance Products repaired under warranty at the factory will be returned freight prepaid by LOUD Technologies to any location within the boundaries of the USA G LOUD Technologies warrants all repairs performed for 90 days or for the remainder of the warran
16. ce and not a bad idea write your product information here for future reference i e insurance claims tech support return authorization Product Serial Purchased at Date of purchase Part No 0009427 Rev A 1 04 02004 LOUD Technologies Inc All Rights Reserved levels just right SETTINGS 1 Be sure the 1 23175 POWER switch is off 2 Set all the sliders to their center positions and all the switches out CONNECTIONS 1 Using balanced or unbalanced cables connect your mixer s main outputs to the Te231 s inputs and the Te231 s outputs to your amplifer s or powered speakers inputs If you are using the Te231 in a channel s insert connect your mixer s channel inserts to your Te231 s INPUTs and OUTPUTS Note Ihe Te231 31 Band Graphic Equalizer is designed to be inserted in line with the signal as a serial device This means that the entire signal is routed through the processor in contrast to a parallel device where the processed signal is mixed back with the unprocessed signal like a reverb or echo 2 Connect the cables using either XLR or 1 4 TRS connectors balanced or 1 4 TS or RCA connectors unbalanced e The XLR TRS and RCA inputs for each channel are wired in parallel Use only one input per channel e The XLR TRS and RCA outputs for each channel are wired in parallel e balanced XLR connectors are wired as follows Pin 1 shield gro
17. d female XLR connectors They are wired as follows according to standards specified by the AES Audio Engineering Society ee XLR Balanced Wiring Pin 1 Shield Pin 2 Hot Pin 3 Cold C 1 4 TRS Phone Plugs and Jacks TRS stands for Tip Ring Sleeve the three connection points available on a stereo 1 4 or balanced phone jack or plug TRS jacks and plugs are used for balanced signals SLEEVE RING SLEEVE 1 4 TRS Balanced Wiring Sleeve Shield Tip Hot Ring Cold 3 14 1 4 TS Phone Plugs and Jacks TS stands for Tip Sleeve the two connection points available on a mono 1 4 phone jack or plug They are used for unbalanced signals SLEEVE SLEEVE TIP 2227 0 SLEEVE 1 4 TS Unbalanced Wiring Sleeve Shield Hot 1 4 TRS Insert Plugs and Jacks When patching the Te231 into a channel s insert jack you may need to use a special 1 4 TRS connector that uses the tip to send the signal to the Te231 and the ring to return the signal to the channel The sleeve is the common ground earth for both signals These are both unbalanced signals ing SEND to processor aip tip sleeve TRS plug This plug connects to the Channel Insert jack 1 4 TRS Insert Wiring Sleeve Ground Tip 2 Send Ring Return ring RETURN from processor RCA Plugs and Jacks RCA type plugs also
18. e hum or buzz to appear in the audio signal If this is the case try moving the switch to the LIFT position to eliminate the hum or buzz 12 OUTPUTS Three types of connectors are provided for the outputs balanced male XLR and 1 4 TRS Tip Ring Sleeve and unbalanced RCA These balanced outputs are in parallel and provide exactly the same signal on all three outputs regardless of which input jack is used You can connect either a balanced TRS connector or an unbalanced TS connector to the 1 4 output jack 13 INPUTS Three types of connectors are provided for the inputs balanced female XLR and 1 4 TRS Tip Ring Sleeve and unbalanced RCA These inputs are in parallel so do not connect more than one signal at a time to the input jacks for each channel You can connect either a balanced or an unbalanced signal to the 1 4 input jack see Appendix B Connections on page 14 for information on input and output connection wiring GENERAL PRECAUTIONS AND CONSIDERATIONS Rack Mounting The Te231 is designed to be mounted in a standard rack It requires two rack spaces 21 3 5 It also requires 7 5 depth inside the rack not counting the rear connectors When designing your rack put the heavier items at the bottom and the lighter items toward the secure the front panel of the Te231 to the front of the rack using four screws with soft washers to prevent scratching the panel Thermal Considerati
19. he Te231 to the center position zero 2 Slowly turn up the master volume on the mixer until feedback just begins occur You can usually hear a soft ringing sound that gradually increases in volume BUT BE CAREFUL Feedback can occur quickly and become very LOUD very fast 3 Cut the appropriate slider corresponding to the feedback frequency until feedback stops It may take some practice to identify the frequency where the feedback is occurring but your accuracy will improve more familiar you become with it 4 Repeat until you can t isolate a specific frequency in the feedback This procedure helps to minimize the resonant peaks in the room It s a little more difficult to identify and adjust for dips in the room response This is best done from experience listening for gaps in the sound of particular instruments or voices Once you ve identified them boost the slider for that particular frequency range by 3 to 6 dB to help smooth the frequency response Another application for a graphic equalizer is patching it into a channel insert to enhance the sound or change the tonal characteristics of a vocal or instrument see hookup diagram Ihe Sound Frequency chart on page 18 is a good reference locate the frequency ranges of particular voices and instrument The Series of processors are powerful and tough They are designed to withstand the punishing rigors of the road and continue perform day after day year
20. hts when the power is on CHANNEL 1 IN OUT amp OUT IN IN OUT AN BAL BAL BAL UNBAL CHANNEL 2 eo IN OUT UNBAL 10 REAR PANEL FEATURES 9 Line Cord Socket and Fuse Here is where you connect the detachable line cord that came in the box with your Te231 Plug the other end of the line cord into an AC outlet properly configured with the voltage required for your particular model see AC Select Switch next The fuse is located behind the fuse cover at the bottom of the IEC socket See the Troubleshooting section on page 12 for information about replacing the fuse 10 AC Select Switch Set this switch to the correct voltage setting for the country you are in 115 VAC or 230 VAC Note Ihe Te231 is shipped with the AC Select switch set to the 230 VAC position If you are in a country that uses 100 120 VAC remove the cover plate with a phillips head screwdriver and set the switch to the 115 VAC position A 315 mA fuse is used for both voltages 115V 230V See the Troubleshooting section on page 12 for instructions on replacing fuse 11 GND LIFT Switch When the switch is in the GND position the audio ground is electrically connected to the chassis safety ground Normally this is how the switch is set However occasionally a ground loop can be created in a system where the signal ground is connected to chassis ground which can caus
21. in and out to compare the sound with the equalizer in the signal path and out of the signal path This can help determine if the problem is with the Te231 or elsewhere in the system Noise Hum e Check the signal cable between the mixer and the Te231 Make sure all connections are good and sound e Make sure the signal cable is not routed near AC cables power transformers or other EMI inducing devices e 5 there a light dimmer or other SCR based device on the same AC circuit as the Te231 Use an AC line filter or plug the Te231 into a different AC circuit Repair service for TAPCO products is available from one of our authorized domestic service centers or at our factory located in sunny Woodinville Washington service for TAPCO products living outside the United States can be obtained through local dealers or distributors If your Te231 needs service follow these instructions Review the preceding troubleshooting suggestions Please Call Tech Support at 1 877 827 2669 7 am to 5 pm PST to explain the problem and request an RA Return Authorization number Have your Te231 s serial number ready You must have an RA number before you can obtain warranty service at the factory or an authorized service center Keep this owner s manual and the detachable line cord We don t need them to repair the Te231 Pack the Te231 in ifs original package including endcaps and box This is very important When you call for
22. known as phono plugs and jacks are offen used in home stereo and video equipment and in many other applications They are unbalanced and electrically equivalent to a 1 4 TS phone plug SLEEVE TIP SLEEVE TIP mo RCA Unbalanced Wiring sleeve Shield Tip Hot Appendix C Technical Info T 231 Specifications Frequency Response 20 Hz to 20 kHz 0 1 20 Hz to 50 kHz 0 3 Audio Input Type Active balanced XLR and 1 4 jacks Unbalanced RCA jack Impedance 20 kQ balanced 15 kQ unbalanced 21 dBu balanced and unbalanced Maximum Input Level Audio Output Type Active balanced XLR and 1 4 jacks Unbalanced RCA jack Impedance lt 600 Q Maximum Output Level 18 dBu THD N 1 kHz 4 dBu 0 02 1 kHz all sliders at center position Noise and Hum unity gain lt 93 dBu Crosstalk 1 kHz lt 103 dBu Common Mode Rejection gt 60 dB Graphic EQ Type Frequency Range 3 octave Constant 20 Hz to 20 kHz in 31 third octave bands ISO center frequencies Sliders 20 mm with center detent Level Off to 17 Hi Pass 40 Hz 12 dB octave Low Pass 16 kHz 12 dB octave Bypass Bypasses the graphic equalizer Hi Pass and Low Pass filter sections Range 6 or 12 Indicators HI PASS LED LOW PASS LED CLIP LED BYPASS LED 6 dB 12 dB Range LEDs POWER LED AC Power and Current Requirements Power Consumption 12 5 watts AC Operating Voltages U S
23. neven surfaces may cause the Component and cart combination to overturn 10 11 12 13 14 Heat This product should be situated away from heat sources such as radiators or other devices which produce heat Power Sources This product should be connected to power supply only of the type described in these operation instructions or as marked on this product Power Cord Protection Power supply cords should be routed so that they are not likely to be walked upon or pinched by items placed upon or against them paying particular attention to cords at plugs convenience receptacles and The point where they exit this product Object and Liquid Entry Care should be taken so that objects do not fall on and liquids are not spilled into this product Damage Requiring Service This product should be serviced only by qualified service personnel when Ihe power supply cord or the plug has been damaged or B Objects have fallen or liquid has spilled into this product or C This product has been exposed to rain or This product does not appear to operate normally or exhibits a marked change in performance or E This product has been dropped or its chassis damaged Servicing The user should not attempt to service this product beyond those means described in this operating manual All other servicing should be referred to the Tapco Service Department To prevent electric shock do
24. oard s main outputs and the power amplifier inputs see hookup diagram on page 8 When used with a real time analyzer and pink noise generator it can be used fo fine tune the acoustic frequency response and get it as flat as possible in a room TAPCO van a k a micro bus However often times a perfectly flat frequency response is not what you want in a live sound application For example if the low frequency response of the loudspeakers only extends to 50 Hz there is no need to amplify the frequencies in the lowest octave of the audio frequency range 20 Hz to 40 Hz You can use the Te231 to roll off these frequencies which reduces the drain on the amplifier and provides more power to amplify the higher more useful frequencies You might want to boost the higher frequencies a bit to add brightness and sizzle to the sound If the sound system is for the speaking voice boosting the mid frequencies around 2 4 kHz can improve the intelligibility of the voice Boosting 125 Hz 250 Hz and 16 kHz can improve vocal as you might to eliminate it there may still be a residual 60 cycle hum in the speakers You can use the 63 Hz slider to notch down the hum the 125 Hz slider can help eliminate residual buzz A graphic equalizer can be used reduce feedback If you don t have a real time analyzer to identify the peaks that cause the feedback you can do a fairly good job by ear using the following procedure 1 Set all the sliders on t
25. on stage microphone hanaling noise If the Te231 is used with monitor speakers turning on this button can reduce the muddiness caused by the lows from the stage monitors feeding back into the main output through the microphones 4 LOW PASS Use this button roll off the frequencies above 16 kHz The LED below the button lights to indicate when the LOW PASS filter is turned on This is useful to remove hiss and high frequency noise from the signal 5 BYPASS This button effectively disables the EQ circuits You can use this button to compare the EQ d signal to the unprocessed signal When the BYPASS button is pushed in the LED below the BYPASS button lights 6 CLIP This LED lights when the output signal is within 5 dB of clipping It is okay if the CLIP LED blinks occasionally but if it blinks frequently or stays lit all the time turn down either the LEVEL control or the output signal from the mixer or other device immediately preceding the Te231 7 RANGE This determines the maximum boost and cut of the EQ sliders either 12 dB or 6 dB pushed in The corresponding LED below the RANGE button indicates the setting The 12 setting provides more boost and cut if it is needed for more drastic EQ requirements The 6 dB setting provides less boost and cut buf allows you to fine tune the controls with more precision 8 POWER Use this switch to turn the Te231 on and off The LED above the switch lig
26. ons Avoid mounting the Te231 directly over devices that produce heat such as power amplifiers As with all electronic components it is best to provide cool air circulation around the Te231 to avoid overheating The ambient temperature should not exceed 113 F 45 C AC Power Considerations Be sure the Te231 is plugged into an AC outlet that is able to supply the specified voltage and the AC select switch is set to the correct voltage Be sure the AC outlet can supply enough current to allow full power operation of all the components plugged into it especially if there are power amplifiers plugged in The outlet should be a three prong socket that matches the power cord WARNING Bypassing the plug s safety ground pin can be dangerous Don t do it 11 12 Appendix A Service Information Warranty Service Details concerning Warranty Service are spelled out in the Warranty section on page 19 If you think your Te231 has a problem please do everything you can to confirm it before calling for service Doing so might save you from the deprivation of your equalizer and the associated suffering These may sound obvious to you but here are some things you can check Read on Troubleshooting No Power Our favorite question Is it plugged Make sure the AC outlet is live Check with a tester or lamp e Our next favorite question Is the POWER switch on If not try turning it on ls the red LED above to
27. s vary considerably in susceptibility to could result in some hearing loss To ensure against potentially dangerous noise induced hearing loss but nearly everyone will lose some exposure to high sound pressure levels it is recommended that all persons hearing if exposed to sufficiently intense noise for a period of exposed to equipment capable of producing high sound pressure levels time The U S Government s Occupational Safety and Health use hearing protectors while the equipment is in operation Ear plugs or Administration OSHA has specified the permissible noise protectors in the ear canals or over the ears must be worn when operating level exposures shown in the following chart the equipment in order to prevent permanent hearing loss if exposure is in excess of the limits set forth here Duration Per Day Sound Level dBA Typical In Hours slow Response Example Packed garage concert VW Bus Peace Train Cranked psychedelic tunes High speed chase on 1 0 25 or less Loudest parts at a Heavy Metal concert What me read a manual Before you begin please make sure you read the Safety Instructions on page 2 and Getting Started on page 4 Your new TAPCO Te231 is designed to set up quickly and operate easily We know it s often seen as a sign of weakness fo read a manual along with asking for directions when lost buf maybe you can read the rest when nobody is looking It is important to keep your receipt in a safe pla
28. ty period This warranty does not extend to damage resulting from improper installation misuse neglect or abuse or fo exterior appearance This warranty is recognized only if the inspection seals and serial number on the unit have not been defaced or removed H LOUD Technologies assumes no responsibility for the quality or timeliness of repairs performed by TAPCO Authorized Service Centers I This warranty is extended to the original purchaser and to anyone who may subsequently purchase this product within the applicable warranty period J This is your sole warranty LOUD Technologies Inc does not authorize any third party including any dealer or sales representative to assume any liability on behalf of LOUD Technologies or to make any warranty for LOUD Technologies Inc THE WARRANTY GIVEN ON THIS PAGE IS THE SOLE WARRANTY GIVEN BY LOUD TECHNOLOGIES INC AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESS AND IMPLIED INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE THE WARRANTY GIVEN ON THIS PAGE SHALL BE STRICTLY LIMITED IN DURATION TO ONE YEAR FROM THE DATE OF ORIGINAL PURCHASE FROM AN AUTHORIZED TAPCO DEALER UPON EXPIRATION OF THE APPLICABLE WARRANTY PERIOD LOUD TECHNOLOGIES SHALL HAVE NO FURTHER WARRANTY OBLIGATION OF ANY KIND LOUD TECHNOLOGIES INC SHALL NOT BE LIABLE FOR ANY INCIDENTAL SPECIAL OR CONSEQUENTIAL DAMAGES THAT MAY RESULT FROM ANY DEFECT IN THE TAPCO PRODUCT OR ANY WARRA
29. und Pin 2 hot Pin 3 cold e The 1 4 TRS connectors are wired as follows Tip hot Ring cold Sleeve shield ground 3 Plug all the sound system components into suitable AC outlets properly grounded and capable of delivering adequate current 4 Turn all the equipment on If you are monitoring the signal through speakers turn the power amplifier on last to avoid getting any pops or thumps through your speakers Getting Started The following steps will help you set up your Te231 and get the SET THE CONTROLS 1 Make sure your signal source is turned up and delivering signal to the Te231 The signal should pass through the Te231 unaffected because the CHAN 1 and 2 BYPASS buttons are out and the signal processing circuitry is bypassed 2 Push in the CHAN 1 and 2 BYPASS buttons to enable the graphic equalizer circuits 3 You can turn up and down each individual slider and hear how it affects the sound 4 You can turn up and down the input LEVEL controls to make it louder or softer When the LEVEL control is at the center detent it is at unity gain it doesn t boost or cut the signal Things To Remember e When you shut down your equipment turn off the amplifiers first When powering up turn on the amplifiers last VERY IMPORTANT Save the shipping box and packing material You may need it someday Contents
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