Symetrix 450-manual
Contents
1. 31 2 TO BALANCED IN NOO MALE IRS PLUG HIGH E RING LOW ft SLEEVE GROUND SLEEVE TO UNBALANCED IN MALE TS PLUG HIGH L SLEEVE GROUND LOW MALE RCA PLUS TO HIGH SLEEVE e TO BALANCED IN TERMINAL STRIP EFE 9 Ce LOW wy GROUND TO BALANCED IN FROM UNBALANCED OUT vat BOK Ory O UNUSED GROUND 2 UNBALANCED FROM TRANSFORMER COUPLED OR FLOATING BALANCED OUTPUT MALE TS PLUG ola SLEEVE GROUND LOW MALE RCA PLUG HIGH SLEEVE GROUND LOVV Appendix Declaration of Conformity Declaration of Conformity We Symetrix Incorporated 14926 35th Ave West Lynnwood Washington USA declare under our sole responsibility thatthe product 450 Dual Zone Priority Mixer to which this declaration relates 1s in conformity with the following standards EN 60065 Safety requirements for mains operated electronic and related apparatus for household and similar general use EN 50081 1 Electromagnetic compatibility Generic emission standard Part 1 Residential co2. and a third grounding prong The third prong is provided for your safety When the provided plug does not fit your outlet consult an electrician for replacement of the obsolete outlet Danger from Loss of Ground Ifthe protective ground connection is lost all accessible conduc tive parts including knobs and controls that may appear to be insulated can render an electric shock Proper Power Cord Use only the power cord and connector specified for the product and your operating locale Use only a cord that is in good condition Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus Operating Location Donot operate this equip ment under any of the following conditions explosive atmospheres in wet locations in inclement weather improper or unknown AC mains voltage or if improperly fused Do not install near any heat source such as radiators heat registers stoves or other apparatus including amplifiers that produce heat Unplug this apparatus during lightning storms or when unused for long periods of time Stay Out of the Box To avoid personal injury or worse do not remove the product covers or panels Do not operate the product without the covers and panels properly installed Only use accessories specified by the manufacturer Clean only with a damp cloth User serviceable parts There are no user serviceable parts insid
3. t hurt anything In fact you can save a little money on your remote cable by using one conductor plus ground for short cable runs see diagram 3 or two conductor plus ground for long runs see diagram 4 Remote Control Wiring Diagram 1 Diagram 2 Diagram 3 Diagram 4 50K LINEAR POTENTIOMETER OPTIONAL 6 4 RESISTOR FOR LONG DISTANCE OR NOISY ENVIRONMENTS OVER 100 FEET 50K LINEAR POTENTIOMETER 3 CONDUCTOR WITH SHIELD SHIELD CONNECTED AT PLUG END ONLY OPTIONAL amp SLEEVE 6K04 RESISTOR TIP NOT RING TO VOLTAGE SOURCE CONNECTED A GROUND SLEEVE FOR LONG DISTANCE OR NOISY ENVIRONMENTS OVER 100 FEET TIP NOT RING TO VOLTAGE SOURCE CONNECTED SLEEVE TO GROUND 2 CONDUCTOR WITH SHIELD SLEEVE Chapter 7 Priority Override Muting Priority Levels The term priority override refers to the 450 s ability to selectively mute it s low priority inputs when audio signal is present on it s high priority inputs There are actually four different levels of priority assigned as follows Input Priority Level Mic Line In 1 Priority One highest Mic Line In 2 Priority Two not so high Line In 3 4 Priority Three even lovver Line In 5 6 7 8 9 10 No priority When audio is detected on a Priority input all inputs with a lower Priority Level will mute until audio is no longer detected on the higher Priority Level input s
4. the source and that it is getting to the 450 Make sure that the input signal is assigned to Zone or Zone 2 or both Distortion in the output signal Check the input signal Is it overdriving the 450 s input If so reduce the incoming signal level or in the case of microphone signals use the 450 s microphone pad Is the incoming signal already distorted Listen up stream from the 450 to determine that you are feeding it a clean signal s Buzzin the output Check input and output connector wiring Check for ground loops between interconnected system equipment Are all system components on the same AC ground Noise hiss Check input signal levels and input level control settings The input may be too low in level If so boost the incoming signal if possible If the incoming signal is Mic level make sure that the Mic Line Switch for that input 15 set to Mic Is the input signal already noisy Listen up stream from the 450 to determine that you are feeding it a clean signal s The 450 doesn t power up or doesn t respond properly 12 Consult a qualified service technician or the Symetrix factory Chapter 10 Specifications Architects and Engineers Specifications The audio microphone and line mixer shall be a high performance unit occupying a single space 10 The unit shall have tvvo lovv impedance balanced microphone line inputs vvith connection via female XLR Each microphone l
5. 2 5 ASSIGN a NO PRIORITY PRIORITY 5 OVERRIDE O O 2 7 2 a ASSIGN 2 SSIG A ZONE 2 ASSIGN Applications Chapter 8 Two Zone Foreground Music with Paging The following 16 a layout of a PAGING MIC OMS typical restaurant bar combination CAR system When someone makes announcement the announce MIC LINE LINE 1 5 6 MUTING audio goes only to Zone 2 which we have drawn as a stereo sound system in the bar area The 450 mutes only the foreground music s feed to that zone leaving the Zone 1 the dining room music feed live It s like having two separate mixers ZONE 1 MONO DINING ROOM in one chassis BAR Mic and PBX Paging with Emergency Override The reason that we included two PAGING mic line inputs as the two top aa AUTOMATED priority levels 18 to accommodate EVACUATION 4 the needs of industrial paging eee systems The following diagram ena dl shows how the Priority Override Muting system handles multiple me paging sources The paging mic ZONE overrides PBX pages Both of NO these hovvever are muted by the fire alarm evacuation announce system 10 Meeting Presentation Rooms with Remote Control In meeting rooms the 450 is flexible enough to handle both speech reinforcement and audio playback at the same time even if you re using two separate speaker systems In the diagram below note that the remote contro
6. 450 Dual Zone Priority Mixer User s Guide Table of Contents Chapter 1 Introduction Chapter 2 Operator Safety Summary Chapter 3 Fast Setup Chapter 4 Inputs Chapter 5 Stereo Line Inputs Chapter 6 Output Zone Master Chapter 7 Priority Override Muting Chapter 8 Applications Chapter 9 Troubleshooting Chapter 10 Specifications Chapter 11 Warranty amp Service Appendix A Input Output Connections Appendix B Declaration of Conformity Rev 00 6 July 1999 Symetrix part number 53450 0C00 Subject to change without notice 01999 Symetrix Inc All right reserved Symetrix 18 a registered trademark of Symetrix Inc Mention of third party products is for informational purposes only and constitutes neither an endorsement nor a recommendation Symetrix assumes no responsibility with regard to the performance or use of these products Under copyright laws no part of this manual may be reproduced or transmitted in any form or by any means electronic or mechanical including photo copying scanning recording or by any information storage and retrieval system without permission in writing from Symetrix Inc O WB A W N 10 12 13 14 16 17 O Symetrix 14926 35th Ave West Lynnvvood VVA 98037 USA 425 787 3222 Fax 425 787 3211 Email symetrix O symetrixaudio com Chapter 1 Introduction The 450 Dual Zone Priority Mixer is designed for paging and music sound systems in c
7. 50 s output is driving a balanced input The 450 uses a differential output driver that drops the output level by 6db when connected to an unbalanced input This does not adversely affect the audio quality whatsoever and is easily fixed by increasing the output gain knob setting by 6dB Rear Panel Symetrix OUTPUTS AL ZONE PRIORITY MIXER ZONE 2 ZONE 1 STEREO MONO REMOTE CONTROL RIGHT LEFT ZONE2 ZONE1 Remote Control There are two ways to externally control the volume of the 450 s Zone Outputs Both options render the front panel master gain control inactive Option 1 The easiest method is the old volume knob in a wall plate Use a 50k linear potentiom eter and wire it as follows on the next page in diagrams or 2 The remote control cable is not carrying any audio signal just DC control voltage This means that you can use a very long cable up to 1000 without degrading the 450 s performance whatsoever To achieve this you must use 20 22 gauge three conductor plus ground cable and wire it accord ing to diagram 2 Option 2 If you re using a programmable remote control system that has the ability to supply an external voltage to the 450 no problemo Wire it as seen in Diagrams 3 or 4 on the following page The dB Voltage gain scale is 5dB V Unity gain 11 5V Note that the 15V control voltage supplied by the 450 on the tip of the TRS connector is not used in this configuration This is okay it won
8. 7 NY 7 NY 15dB ZONE2 HIGHPASS 700 1508 Zone Assign Any input can be assigned to either the mono or stereo output zone or both or neither When either Mic Line input is assigned to the stereo output zone both left and right will be driven by the same signal For the best signal to noise performance leave the input unassigned if not in use Highpass Filter 12dB Oct LF rolloff 3dB down at 115 hz Use this to eliminate excessive popping or room rumble from paging announce mics Even if you don t notice a problem try pushing this switch anyway It increases the efficiency of systems using ceiling mounted speakers of the 70V variety because it removes low frequency material that the speakers probably can t reproduce anyway It will help your amplifier to run cooler draw less power and just maybe it will help to extend the life of the speaker Channel Gain Control Gain range is 2 to 1 5dB Unity gain indicated by the u symbol on the front panel at 12 00 position This is no ordinary volume control Well actually it is MIC LINE IN 2 PRIORITY 2 MIC LINE IN 1 PRIORITY 1 MIC PAD MIC PAD 55 JE OUT IN IN A h INPUT SELECT INPUT SELECT XLR Input Jack In order to fit all the inputs and outputs onto the 45075 rear panel we combined the Mic Line Input jacks into one balanced XLR connector that can handle both This jack is wir
9. LINE IN 5 6 9 RIGHT LEFT RIGHT SELECT Rear panel Operator Safety Summary Equipment Markings CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN TO REDUCE THE RISR OF FIRE OR WARNING ElEcrRic SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE RISQUE DE CHOC ELECTRIQUE AVIS NE PAS OUVRIR SEE OVVNERS MANUAL VOIR CAHIER D INSTRUCTIONS No user serviceable parts inside Refer servicing to qualified service personnel ne se trouve a l interieur aucune pourvant entre repar e l usager S adresser a un reparateur comp tent The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user of 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 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 product i e this manual Caution To prevent electric shock do not use the polarized plug supplied with the unit with any extension cord receptacle or other outlet unless the blades can be fully inserted Terms Several notational conventions are used in this manual Some paragraphs may use Note Caution or Warning as a heading Certain typefaces and capitalizatio
10. Note The maximum operating ambient temperature is 25 degrees C Specifications subject to change without notice 13 Warranty amp Service Chapter 11 450 Limited Warranty Symetrix Inc expressly warrants that the product will be free from defects in material and workman ship for one 1 year Symetrix s obligations under this warranty will be limited to repairing or replacing at Symetrix s option the part or parts of the product which prove defective in material or workmanship within one 1 year from date of purchase provided that the Buyer gives Symetrix prompt notice of any defect or failure and satisfactory proof thereof Products may be returned by Buyer only after a Return Authorization number RA has been obtained from Symetrix Buyer will prepay all freight charges to return the product to the Symetrix factory Symetrix reserves the right to inspect any products which may be the subject of any warranty claim before repair or replacement is carried out Symetrix may at its option require proof of the original date of purchase dated copy of original retail dealer s invoice Final determination of warranty coverage lies solely with Symetrix Products repaired under warranty will be returned freight prepaid by Symetrix via United Parcel Service surface to any location within the Continental United States At Buyer s request the shipment may be returned via airfreight at Buyer s expense Outside the Continental United
11. States products will be returned freight collect The foregoing warranties are in lieu of all other warranties whether oral written express implied or statutory Symetrix Inc expressly disclaims any IMPLIED warranties including fitness for a particular purpose or merchantability Symetrix s warranty obligation and buyer s remedies hereunder are SOLELY and exclusively as stated herein This Symetrix product is designed and manufactured for use in professional and studio audio systems and is not intended for other usage With respect to products purchased by consum ers for personal family or household use Symetrix expressly disclaims all implied warran ties including but not limited to warranties of merchantability and fitness for a particular purpose This limited warranty with all terms conditions and disclaimers set forth herein shall extend to the original purchaser and anyone who purchases the product within the specified warranty period Warranty Registration must be completed and mailed to Symetrix within thirty 30 days of the date of purchase Symetrix does not authorize any third party including any dealer or sales representative to assume any liability or make any additional warranties or representation regarding this product information on behalf of Symetrix This limited warranty gives the buyer certain rights You may have additional rights provided by applicable law Limitation of Liability The total liabi
12. aging materials and freight charges Please remember you must call for RA number before sending the unit to Symetrix Input Output Connections FROM BALANCED OUT FE a FEMALE XIR T les PIN 1 GROUND PIN 2 HIGH 3 Low 18 8 022 0 BALANCED OUT TRS PLUS TP HIGH 77 RINS LOVV SLEEVE GROUND FROM UNBALANCED OUT MALE 15 PLUG SLEEVE GROUND LOVV MALE RCA ar HIGH pa SLEEVE GROUND LOW FROM BALANCED OUT T y TERMINAL STRIP HIGH LOW GROUND FROM BALANCED OUT TO UNBALANCED IN TERMINAL STRIP p HIGH USED wy GROUND FROM ELECTRONIC NON TRANSFORMER BALANCED OUTPUT TYPICAL OF SYMETRIX PRODUCTS TO UNBALANCED INPUTS E FEMALE XLR ES 1 GROUND LOW PIN 2 HIGH PIN 3 NOT USED 4 MALE TRS PLUG HIGH 71 USED LEEVE GROUND LOW MA eno SLEEVE 16 Appendix BALANCED IN res et XLR 5 PIN 1 GROUND i PIN 2 HIGH
13. e the 450 In case of failure refer all servicing to the factory Servicing 1s required when the 450 has been damaged in any way such as when a 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 Chapter 3 Fast Setup If you re in a hurry to get the 450 into your sound system and don t have time to thoroughly read this manual the following steps will probably be enough to get you started Turn all front panel gain controls down Make sure all Zone Assign buttons are OUT Connect the 450 to AC power Set all back panel switches in correct position Take extra care to set the Mic Line switch found on Inputs 1 and 2 only in the appropriate position Connect all the audio inputs and outputs you need Set BOTH Priority Override adjust ments to BYPASS To use this feature see Priority Override Muting in the Operations section of this manual Assign the inputs to appropriate zones set the Zone Out Master to 12 00 unity gain and turn up each input until the sound source is at the desired loudness Now read the rest of this manual Mic Line Inputs Chapter 4 Front Panel MIC LINE IN 1 PRIORITY 1 MIC LINE IN 2 PRIORITY 2 ZONE ASSIGN GAIN ZONE ASSIGN GAIN 20 Ui Li Ui RA e S N ZONE 1 gt O gt JE
14. ed as follows Pin 1 ground shield Pin 2 high Pin 3 low Most low impedance balanced microphones and many line level sources can plug directly into these jacks but some sources will require adapters See the chart in Appendix A for examples Caution Do not attempt to connect a high impedance unbalanced micro phone these usually but not always have 1 4 phone jack attached to them to either Mic Line input unless you first disconnect the phantom power INPUT SELECT Switch Push this switch in to accommodate line level sources such as PBX paging outputs mixing consoles automated emergency announce systems etc This bypasses the mic preamp circuit and disconnects phantom power from the XLR connector Note Make sure the Mic Line input is not assigned to either Zone Output when you push the Mic Line switch because the phantom power may cause a slight pop In the mic out position the input signal is routed through the mic preamp and the phantom power is engaged The preamp stage delivers approximately 40 dB of gain Warning Do not put this switch into the Mic position when feeding a line level signal into this input unless you enjoy re coning speakers MIC PAD Switch This decreases the gain of the mic preamp by 20 dB Engage this switch if the mic level signal source tends to overload the input preamp stage or you notice that the incoming signal is so hot that you have to run the Channel Gain knob real
15. ed with 1 4 TRS tip ring sleeve balanced phone jacks They are wired as follows Tip high Ring low Sleeve ground shield Line inputs 7 10 are unbalanced RCA phono type jacks They are wired as follows Tip high Sleeve ground shield Though you ll be able to plug most line level outputs directly into the 450 some sources may need adapters See Appendix A for proper wiring Mono Stereo Operation Line Inputs 3 10 are arranged in stereo pairs each pair is assigned to a single gain control on the front panel If you want to use one of these inputs with a mono source just insert a single plug into the jack labeled Left mono and leave the Right jack unconnected The left jack will automatically feed both the left and right channels of the Zone 2 stereo output Chapter 6 Output Zone Master Front Panel ZONE 1 OUT MONO ZONE 2 OUT STEREO MASTER PRIORITY MASTER a OVERRIDE PRIORITY OVERRIDE 300 LOW BYPASS 0 0 158 Output Jacks 45075 outputs are electronically balanced low impedance and capable of driving a balanced input to 22dBu The output connectors are 1 4 Tip Ring Sleeve and you can find wiring and adapter examples in Appendix A Master Gain Controls These controls have the same gain range as the input channel gain controls co to 15dB The 1 symbol at the knob s 12 00 position indicates unity gain when the 4
16. ee the diagram below It s impor tant to note that the Priority Override Muting function is directly linked to an input s zone assign ment Priority Override Adjustment This control is the trim adjustment found next to each Zone Out Master level control on the 450 s front panel see the front panel drawing on page 7 It varies the trigger threshold of the Priority Override muting function 1 e The muting function activates when the audio level on a Priority channel exceeds this setting To disable the Override function for either Zone Out set the trim control to the Bypass position Note recommend that you set the trigger threshold as low as possible if you are using one music source to mute another An example of this is a restaurant bar system that uses a CD jukebox to automatically mute the TV video feed A low threshold will prevent the low priority input from un muting during quiet musical passages Note In a paging system with a live 1 6 no on off switches paging mic you may want to set the trigger threshold higher to prevent background noise from activating the muting function MIC MIC LINE LINE LINE LINE LINE 1 LINE 2 3 4 5 0 7 8 9 10 MUTING LOGIC 2 1 ASSIGN PRIORITY 1 PRIORITY 2 El ASSIGN PRIORITY 3 MONO NO PRIORITY PRIORITY OVERRIDE o MUTING LOGIC ASSIGN O PRIORITY 1 ZONE 2 ASSIGN 7 11 10 O PRIORITY 2 2 T ZONE 2 E ea o 7
17. ine input shall have a rear panel pushbutton which shall bypass the mic preamp circuitry Each input shall also have a switch to reduce the gain of the mic input by 20dB Associated with each microphone input shall also be a front panel level control potentiom eter whose purpose is to establish the level of the microphone channel as it is mixed to either a mono output zone a stereo output zone or both simultaneously Each microphone input shall also have a first order low cut filter with a 115Hz rolloff frequency The mic line mixer shall have four stereo line level inputs Each input shall be assignable to either a monaural output zone a stereo output zone or both Associated with each line input shall be a level control potentiometer whose purpose is to establish the level of the line level output signal as it is mixed to either a mono output zone a stereo output zone or both simultaneously The 450 shall incorporate a four level priority muting system as follows High priority inputs shall mute or duck all lower priority inputs that are assigned to the same output zone when audio is present at the higher priority input There shall be a threshold control in each zone master section which determines the minimum level of audio that will trigger the muting ducking function Priority shall be assigned as follows Mic Line In 1 Priority 1 Mic Line In 2 Priority 2 Line In 3 4 Priority 3 Line In 5 6 7 8 9 10 No Priority Independe
18. l jacks allow the user to adjust the music and mic volume separately from within the meeting room LECTURN MUSIC MIC LES URE 0000 CONTROLS MIC LINE LINE 1 3 4 ZONE 2 NO PRIORITY Subgrouping with Remote Control In the following diagram we present an idea that you will find useful in hotels and convention centers The music sources inputs 5 10 are assigned only to the zone 1 output A patch cord connects this output to Line Input 3 which is assigned only this is important to Zone 2 The Zone 2 output is then fed to the amplifier s that drive the speakers A remote control conveniently located near the paging mic is connected to the Zone output This configuration gives the staff convenient control over the music volume but leaves the paging volume untouched This can be especially useful in systems where the staff wants control over the background music volume but the automated emergency an nounce system must always be heard MUZAK TAPED FEED AUTOMATED CD CONTROL MIC UNE LINE LINE 1 UNE2 3 4 5 6 7 8 9 10 PRIORITY 1 PRIORITY 2 ZONE 1 PRIORITY 3 MONO PRIORITY 2 PRIORITY 3 STEREO ZONE 2 11 Troubleshooting Chapter 9 There is no output signal Check the AC power connections to the 450 Check input and output cables and connections Determine that there really 15 signal coming from
19. lity of Symetrix on any claim whether in contract tort including negligence or otherwise arising out of connected with or resulting from the manufacture sale delivery resale repair replacement or use of any product will not exceed the price allocable to the product or any part thereof which gives rise to the claim In no event will Symetrix be liable for any incidental or consequential damages including but not limited to damage for loss of revenue cost of capital claims of customers for service interruptions or failure to supply and costs and expenses incurred in connection with labor overhead transportation installation or removal of products or substitute facilities or supply houses Servicing the 450 If you have determined that your 450 requires repair services and you live outside of the United States please contact your local Symetrix dealer or distributor for instructions on how to obtain service If you reside in the U S then proceed as follows At the Symetrix factory Symetrix will perform in warranty or out of warranty service on any product it has manufactured for a period of five years from date of manufacture Before sending anything to Symetrix contact our Customer Service Department for a return authorization RA number The telephone number 15 425 787 3222 Monday through Friday 8AM 800 hours though 4 30 PM 1630 hours Pacific Time In warranty Repairs To get your 450 repaired under the terms of the war
20. lubs restaurants hotels conference facilities houses of worship or anywhere multiple audio inputs must be combined and distributed There are two mono mic line inputs with phantom power and low frequency filters and four stereo line inputs Each input may be assigned to a stereo output zone a mono output zone or both Our unique hierarchical Priority Override structure permits the two mic line inputs and the first stereo line input to mute the other lower priority inputs assigned to the same zone For example in a typical configuration a paging microphone assigned to the stereo zone will have priority over a background music source connected to line input 5 6 in that zone A jukebox connected to line input 3 4 in the same zone will have priority over the background music but the paging signal will retain ultimate priority and force muting of both the jukebox and the background music whenever the page mic is used The 450 s flexibility and simplicity make it the perfect choice for a wide variety of systems By accepting audio inputs from virtually any type of audio source and selectively routing to either the mono or stereo output zone the 450 can save you time and money in the design and installation of your next project Of course we recommend you read this manual cover to cover You ll find the answer to most of your questions inside If you have technical questions beyond the scope of this manual contact our Customer Service Depart
21. ly low Typically this happens when using high output condenser mics or handheld close talked mics As the name Mic Pad suggests this switch does not affect the input gain when the channel is operating in Line mode Phantom Power Phantom power is applied to the Mic Line input only when the mic line switch is in the mic in position If you want to completely disconnect the phantom power please contact Symetrix Customer Service Stereo Line Inputs Chapter 5 Front Panel LINE IN 3 4 PRIORITY 3 LINE IN 5 6 2 7 8 LINE 9 10 ZONE ASSIGN GAIN ASSIGN GAIN ASSIGN GAIN ASSIGN GAIN 5 0 548 8 61 ZONE 2 ZONE 2 ZONE 2 2 Zone Assign As you might expect Left and Right input signals summed when fed to the Zone mono output This is done independently of the Zone 2 Stereo feed which keeps the signals separate As with the Mic Line inputs maximize the unit s signal to noise ratio by leaving all unused inputs unassigned Channel Gain The wide gain range of this control oo to 15dB accommodates the variety of input levels generically known as line level including tape decks CD players console feeds etc Unity gain is indicated by the symbol on the front panel Rear Panel LINE IN 9 10 LINE IN 7 8 LINE IN 5 6 LINE IN 3 4 PRIORITY 3 on MONO MONO MONO RIGHT LEFT RIGHT LEFT Input Jacks Line inputs 3 6 are equipp
22. ment at Phone 425 787 3222 Fax 425 787 3211 Email symetrix symetrixaudio com LINE IN 3 4 PRIORITY 3 LINE IN 5 6 LINE IN 7 8 LINE IN 9 10 ZONE 1 OUT MONO ZONE 2 OUT STEREO PRIORITY MASTER E CO MIC LINE IN 1 PRIORITY 1 MIC LINE IN 2 PRIORITY 2 ZONE ASSIGN GAIN ZONE ASSIGN GAIN ZONE ASSIGN GAIN ZONE ASSIGN GAIN ZONE ASSIGN GAIN ZONE ASSIGN GAIN PRIORITY MASTER OVERRIDE L R OVERRIDE 450 ly a Sees aut 850 o 8500 DUAL ZONE ZONE 1 7 gt ZONE 1 gt a ZONE 1 gt ZONE 1 gt ZONE 1 gt ZONE 1 gt 209 eat ES ae SO Al Les PRIORITY MIXER XD EX XD 52 OM 10 VO Mee BM AN AS tow Bypass 2 s PO O tow Bypass 2 7742 ZONE2 7 00 1508 ZONE2 HIGHPASS OO 1508 ZONE 2 1508 ZONE 2 158 ZONE 2 ZONE 2 1508 o0 1508 158 22 9 JL Symetrix OUTPUTS LINE IN 9 10 450 DUAL Sym PRIORITY MIXER ZONE 2 ZONE 1 THIS UNIT CONTAINS CONNECT TO O MONO NO USERSERVICABLE A SYMETRIX PS 3 O PARTS 2 99 OR PS 3E POWER SUPPLY ONLY 2 Q 1 RIGHT 6 MANUFACTURED IN LYNNWOOD WA USA LINE IN 3 4 MIC LINE IN 2 PRIORITY 2 PRIORITY 3 PAD D LINE IN 7 8
23. mmercial and light industry EN 50082 1 Electromagnetic compatibility Generic immunity standard Part 1 Residential commercial and light industry The technical construction fileis maintained at Symetrix Inc 14926 35th Ave West Lynnwood WA 98037 2303 USA The authorized representative located within the European Community is World Marketing Associates P O Box 100 St Austell Cornwall PL266YU U K Date ofissue 1 November 1995 Place ofissue Lynnwood Washington USA Authorized signature Symetrix Inc 14926 35th Ave West Lynnwood WA 98037 2303 USA Tel 425 787 3222 Fax 425 787 3211 Website http www symetrixaudio com Email symetrix symetrixaudio com
24. n are used to identify certain words These are Note Identifies information that needs extra emphasis A Note generally supplies extra information to help you to better use the 450 Caution Identifies information that if not heeded may cause damage to the 450 or other equipment in your system Identifies information that if ignored may be hazardous to your health or that of others Controls switches or other markings on the 450 s chassis Strong emphasis Warning CAPITALS Boldface Important Safety Instructions Please read and keep these instructions Heed and follow all warnings and instructions Install in accordance with the manufacturer s instructions Power Source This product is intended to operate from a power source that does not apply more than 250V rms between the power supply conductors or between either power supply conductor and ground A protective ground 2 Chapter 2 connection by way of the grounding conductor in the power cord 15 essential for safe operation Grounding The chassis of this product is grounded through the grounding conductor of the power cord To avoid electric shock plug the power cord into a properly wired receptacle before making any connections to the product A protective ground connection by way of the grounding conductor in the power cord is essential for safe operation Do not defeat the safety purpose of the grounding plug The grounding plug has two blades
25. nt master output level controls shall be provided for both the monaural output zone and the stereo output zone LED peak meters shall indicate the actual output level regardless of the nature of the load Independent means shall be provided to remotely control the output level of the mono output zone and the stereo output zone Rear panel jacks shall be provided to accept connections from standard SOK linear potentiometers for this purpose When wired for remote control the front panel output zone level controls shall be disabled The mic line mixer shall be a Symetrix Inc model 450 Dual Zone Priority Mixer Specifications Audio Microphone Inputs Two Low Impedance Balanced Mic Common Mode Rejection 1 kHz 1V RMS gt 85 dB Phantom Power 48V 10ma per input max Line Inputs Four Stereo Line Input Impedance gt 10k Ohms Balanced Line Input Common Mode Rejection 1 kHz 1V RMS gt 40 dB Maximum Line Input Level 24 dBu Balanced 18 dBu Unbalanced Frequency Response Any Input to Any Output 1 dB 20 Hz to 20 kHz Connections Microphone Inputs XLR Female pin 2 high Line Inputs 14 TRS tip is high RCA phono Unbalanced Line Outputs 14 TRS tip is high Remote Volume Control Inputs 14 TRS Physical Size hwd 1 72 x 19 x 6 5 inches 4 37 x 48 26 x 16 51 centimeters Weight 8 105 3 64kg net Electrical Power requirements 117V nominal 95 to 130V AC 50 to 60 Hz 15 watts 230V nominal 165 to 255V AC 50 Hz 15 watts
26. ranty 1 Call us for an RA number 2 Pack the unit in its original packaging materials 2 Include your name address daytime telephone number and brief statement of the problem 4 Write the RA number on the outside of the box 5 Ship the unit to Symetrix freight prepaid We do not accept freight collect shipments Just do these five things and repairs made in warranty will cost you only one way freight charges We ll prepay the return surface freight If you choose to send us your product in some sort of flimsy packaging we ll have to charge you for proper shipping materials If you don t have the factory packaging materials then do yourself a favor by using an oversize carton wrap the unit in a plastic bag and surround it with bubble wrap Pack the box full of Styrofoam peanuts Be sure there is enough clearance in the carton to protect the rack ears you wouldn t believe how many units are returned with bent ears We won t return the unit in anything but Symetrix packaging for which we will have to charge you Of course if the problem turns out to be operator inflicted you ll have to pay for both parts and labor In any event if there are charges for the repair costs you will pay for the return freight All charges will be COD unless you have made other arrangements prepaid Visa or Mastercard Out of warranty Repairs If the warranty period has passed you ll be billed for all necessary parts labor pack
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