506E Headphone Amplifier
Contents
1. Symetrix 506E Headphone Amplifier 506E HEADPHONE AMPLIFIER 506E Headphone Amplifier User s Guide August 2000 Symetrix Inc All rights reserved Printed in the United States of America Symetrix Part Number 53506E 0A00 The information in this guide is subject to change without notice Symetrix Inc shall not be liable for technical or editorial errors or omissions contained herein nor is it liable for incidental or consequential damages resulting from the furnishing performance or use of this material Mention of third party products is for in formational purposes only and constitutes neither an endorsement nor a recommen dation Symetrix assumes no responsibil ity with regard to the performance or use of these products Under copyright laws no part of this user guide may be reproduced or transmitted in any form or by any means electronic or mechanical without permission in writing from Symetrix Inc If however your only means of access is electronic permission to print one copy is hereby granted Permission to copy the Architects and Engineers Specificiations for written proposals specifying equipment for sound reinforcement systems is also granted Symetrix Inc 6408 216th St SW Mountlake Terrace WA 98043 USA Tel 425 778 7728 Fax 425 778 7727 Web www symetrixaudio com Email symetrix symetrixaudio com Symetrix 506E Headphone Amplifier User s Guide Before You Begi2. phone amplifiers Unique Mono Cue Input For feeding a mix minus or IFB from a producer or remote talent into the main monitor mix during a live broadcast or for feeding a click track during a recording session Assignable to left center left and right or right Mono Stereo Switch Maintains stereo signal integrity from input to output or in mono position either or both program inputs may be used to provide mono program signal Direct Input Output and Level Control Allows you to interrupt the program cue input on each amplifier channel and to insert a separate signal to drive that amplifier channel indepen dently from the other channels Gain controls are provided for program and cue inputs and for the 6 output amplifier channels Internal Power Supply No wallwart or lump in the line Optional Headphone Remote Box Same 6 headphone outputs are also provided at the rear panel to provide output to the Symetrix HR 1 Head phone Remote Symetrix 506E Headphone Amplifier User s Guide Fast First Time Setup Making Hardware Connections and Selections Setting Gain Controls Calculating the Maximum Amplifier Load Making Hardware Connections and Selections 506E Rear Panel 1 Plug the IEC power cord into the 506E and into the appropriate source of AC power as indicated on the rear panel y OUTPUT DIRECT INPUT OUTPUT DIRECT INPUT OUTPUT DIRECT INP
3. flashes Then back it off until the CLIP LED does not flash or only flashes occasionally on peaks in the program source CUE INPUT 3 KR 7 1 6 2 6 6 MONO Estereo ASSIGN 4 3 7 7 Ra 2 8 2 8 Es 2 D SIGNAL D SIGNAL 1 9 SIGNAL 1 9 A SIGNAL 1 o 10 o o tu o While sending signal from your cue source slowly turn the CUE INPUT level control clockwise until the CLIP LED flashes Then back it off until the CLIP LED does not flash or only flashes occasionally on peaks in the cue source 5 3 OUTPUTS A 34 While sending signal from your program and or cue source slowly turn the Channel 1 level control clockwise until the green SIGNAL LED lights You should be able to hear program and or cue signal in your first set of headphones now Au 506E Front Panel ic SIGNAL 0 6 kon POWER o Adjust the Channel 1 level control for the desired listening level If you are using program and cue signals adjust the PRO GRAM INPUT and CUE INPUT level controls to achieve the desired balance of program to cue signal Repeat steps for any additional headphone sets using channels 2 6 of the 506E See in this section Calculating the Maxi mum Amplifier Load to find out how many headphones of various impedances may be used with each output of the 506E Symetrix 506E Headphone Amplifier User s Guide Fast First Time Setup O Making Hardware Connections and Selections S
4. beyond the scope of this guide please contact our Technical Services Group in the following ways T US customers 425 778 7728 International customers 425 778 7728 from 8 00 am to 4 30 pm Pacific Time Monday through Friday F 425 778 7727 tech symetrixaudio com www symetrixaudio com Optional Accessories MODEL ITEM DESCRIPTION HR 1 Headphone Remote Stereo headphone jack with individual volume control input and output jacks various mounting options USC 1 Security Cover Fits 1U 19 in x 1 72 in products Contact your dealer or Symetrix for purchasing information Notational Conventions in this User Guide Note Identifies information that needs extra emphasis Generally supplies extra information to help you to better use the 506E CAUTION Identifies information that if unheeded may cause damage to the 506E or other equipment in your system WARNING Identifies information that if ignored may be hazardous to your health or that of others CAPS Controls switches or other markings on the chassis of the 506E Symetrix 506E Headphone Amplifier User s Guide Before You Begin What Ships in the Box Getting Help Optional Accessories Notational Conventions in this User Guide Operator Safety Summary Equipment Markings Operator Safety Summary Follow all warnings and instructions Install in accordance with the manufacturer s instructions Power Source This product is intended to operate fro
5. 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 user guide 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 Symetrix 506E Headphone Amplifier User s Guide 506E Product Information Product Summary The 506E Headphone Amplifier contains 6 discrete headphone amplifiers which are normally driven by a stereo program input Each amplifier has an independent level control The PRO GRAM INPUT section also has a level control and STEREO MONO switch The CUE INPUT section has a level control and Left Center Right ASSIGN switch Product Summary Features Features Proprietary High Voltage Drive Technology Drives multiple headphones of any impedance greater than or equal to 8 ohms with the equivalent output voltage of a much larger power amplifier 6 Stereo Outputs Automatically adjusts output power to match the load impedance Can be used as a one input 6 output headphone amplifier or as 6 head
6. 50 to 60 Hz The headphone amplifier shall be a Symetrix Inc model 506E Headphone Amplifier 16 Symetrix 506E Headphone Amplifier User s Guide Warranty Warranty Symetrix Inc expressly warrants to the original purchaser Buyer subject to the terms and conditions set forth below that the Product will be free from defects in material and workmanship as a result of normal commercial use for one 1 year from the date of purchase Some Symetrix products contain embedded software and may also be accompanied by control software intended to be run ona personal computer Said software is specifically excluded from this warranty Symetrix s warranty obligation is limited to the repair replacement or refund at Symetrix s sole discretion of the part or parts of the Product which may thus prove defective in materials or workmanship within one year from date of purchase under normal use and which our examination discloses to our satisfaction to be thus defective provided that Buyer gives Symetrix prompt notice of its warranty claim and satisfactory proof thereof Symetrix will make every reasonable effort to ensure that parts are available to support the repair of our products under warranty In the event that a product or component part thereof becomes obsolete unavailable or irreparable Symetrix reserves the right to refund a prorated portion of the purchase price in full satisfaction of all warranty claims In order
7. N OUR PART AND WE NEITHER ASSUME NOR AUTHORIZE ANY OTHER PERSON TO ASSUME FOR US ANY OTHER LIABILITY IN CONNECTION WITH THE SALE OF THE PRODUCT THIS WARRANTY SHALL NOT APPLY TO THIS PRODUCT OR ANY PART THERE OF WHICH HAS BEEN SUBJECT TO ACCIDENT NEGLIGENCE ALTERATION ABUSE OR MISUSE WE MAKE NO WAR RANTY WHATSOEVER IN RESPECT TO ACCESSORIES OR PARTS NOT SUPPLIED BY US THE TERM ORIGINAL PURCHASER AS USED IN THIS WARRANTY SHALL BE DEEMED TO MEAN THAT PERSON OR COMPANY THAT ORIGINALLY PURCHASED THE PRODUCT This Symetrix product has been designed and manufactured for use in professional industrial systems and is not intended for other usage This warranty only applies to Buyers using the Product in professional industrial systems With respect to others including but not limited to consumers for personal family or household use Symetrix expressly disclaims all warranties including but not limited to warranties of merchantabil ity and fitness for a particular purpose and the express warranties as otherwise provided herein Symetrix reserves the right to modify the design or make additions to or improvements to its product lines without making similar upgrades to Product purchased by Buyer Symetrix does not authorize any third party including any dealer or sales representative to assume any liability effect any repairs or modifications to the Product or make any additional warranties or representa tion regarding the
8. OGRAM INPUTS Right XLR Right 1 4 TRS Left XLR Left 1 4 TRS 3 conductor balanced input jack 3 conductor balanced input jack 3 conductor balanced input jack 3 conductor balanced input jack 10 kilohm balanced bridging line input intended for signals ranging from 10 dBu to 4 dBu This jack parallels the 1 4 TRS Right PROGRAM INPUT jack 10 kilohm balanced bridging line input intended for signals ranging from 10 dBu to 4 dBu This jack parallels the XLR Right PROGRAM INPUT jack 10 kilohm balanced bridging line input intended for signals ranging from 10 dBu to 4 dBu This jack parallels the 1 4 TRS Left PROGRAM INPUT jack 10 kilohm balanced bridging line input intended for signals ranging from 10 dBu to 4 dBu This jack parallels the XLR Left PROGRAM INPUT jack Note For the left right and cue inputs XLR pin 2 corresponds to the tip contact of the TRS jack and is in phase with the output signals 12 Symetrix 506E Headphone Amplifier User s Guide Signal Flow Diagram DIRECT INPUT a i LEFT IN VL am BALANCED ii er INPUT FRONT Y OUTPUT sum NE 1 i VE STEREO MONO 7 suno TENRA RIGHT IN PEE BALANCED A esr INPUT ONE OF 6 CHANNELS 77 CUE IN ASSIGN BALANCED iu INPU
9. Product or Product information on behalf of Symetrix Symetrix s total liability 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 Product will not exceed the purchase price of the Product or any part thereof which gives rise to the claim In no event will Symetrix be liable for any incidental or conse quential damages including but not limited to damage for lost 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 as a result of Product failure This limited warranty gives Buyer certain rights Buyer may have additional rights under appli cable law Service 17 Symetrix 506E Headphone Amplifier User s Guide Service Servicing the 506 If you have determined that your unit 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 Before sending anything to Symetrix contact our Customer Service Department for a return authorization RA number The telephone number is 425 778 7728 or email tech symetrixaudio com In warranty Re
10. T edili i gt si VS Ve 77 13 Symetrix 506E Headphone Amplifier User s Guide Troubleshooting e SYMPTOM PROBABLE CAUSE WHAT TO DO No output Check cables and connections to see if e Inputs are driving outputs and outputs are driving inputs Unit is plugged in e The DIRECT INPUT jack of the headphone channel you are monitoring has a cable plugged in If so unplug this source Check controls to see if e PROGRAM INPUT and CUE INPUT gain controls are turned up e The gain control of the headphone channel that you are monitoring is turned up e If the PROGRAM INPUT s Mono Stereo switch is set to MONO try setting the switch to STEREO you may have a phase cancellation problem with the signal that you are sending to the PROGRAM INPUT Verify cables source and load Replace or verify that headphones are in working order Hum or buzz in output Check input and output connector wiring Check for a ground loop problem Inspect related system equipment ground ing to verify that all system components are on the same AC ground Distortion Check if line input signal is too hot or already distorted If so turn down the PROGRAM INPUT and or CUE INPUT gain controls Check the output loading Check if something else is clipping Check if you are overdriving your headphones If so turn down the output gain control for the channel that you are using Noise hiss Check input sig
11. UT OUTPUT qud INPUT OUTPUT oe CUE INPUT 506E O Symetrix OUTPUT DIRECT HEADPHONE AMPLIFIER ab V AC INPUT 25 WATTS MAXIMUM L o o o o o 506E Front Panel 2 Set all levels PROGRAM INPUT CUE INPUT and all 6 headphones to zero PROG INPUT CUE INPUT OUTPUTS 5 6 mm MONO 1 p q OF in e O Le Mio O O Et 1 FS kd 1 1 1 yy 1 sn 1 E D POWER ol r o 7 Connect the first set of headphones either here or to the rear panel OUTPUT 1 jack 4 Set CUE INPUT ASSIGN switch to C center 3 If your program source is mono press switch to lower position If stereo leave in forward position 5 Optional 6 Connect your program source Connect If your source is mono connect your cue either to the left or right jack 506E Rear Panel source Z EN OUTPUT rd OUTPUT T OUTPUT DIRECT OUTPUT RT OUTPUT guod OUTPUT DIRECT CUE INPUT PROGRAM INPUTS INPUT 3 2 MONO o olo olo olo olo olo olt c 7 Connect the first set of headphones either here or to the front panel OUTPUT 1 jack 5 Symetrix 506E Headphone Amplifier User s Guide Fast First Time Setup O Making Hardware Connections and Selections Setting Gain Controls Calculating the Maximum Amplifier Load Setting Gain Controls While sending signal from your program source slowly turn the PROGRAM INPUT level control clockwise until the CLIP LED
12. cm x 18 4 cm Weight 7 6 Ibs 3 5 kg net Electrical Power Requirements 115 VAC nominal 105 to 125 VAC 60 Hz 25W max 230 VAC nominal 220 to 240 VAC 50 to 60 Hz 25W max 15 Symetrix 506E Headphone Amplifier User s Guide Architects and Engineers Specifications The headphone amplifier shall have stereo left and right program inputs with a mono stereo switch and a mono cue input that is assignable to left right and center The headphone amplifier shall have six stereo out puts Each output shall have its own volume control amplifier and signal LED Each output channel shall also have a direct input which interrupts the signal from the program and cue inputs to that output channel The headphone amplifier shall have a program input gain control with a mono stereo switch A cue input gain control with LCR toggle switch shall also be provided All inputs shall be balanced bridging inputs Outputs shall be suitable for driving head phones in the range of 8 ohms to 2000 ohms The output source impedance shall be 100 ohms The headphone amplifier shall be equipped with a program input clip LED a cue input clip LED and a power LED The headphone amplifier shall be capable of delivering 35 volts peak to peak into a 2000 ohm load The headphone amplifier shall be capable of operating by means of its own built in power supply connected to 115 VAC nominal 105 to 125V 60 Hz or 230 VAC nominal 220 to 240V
13. cted to the correspond ing rear panel output jack The tip contact is the left channel Lights to indicate the presence of signal Adjusts the level of signal present at the headphone output When you turn control fully counterclockwise no signal will be present When you turn this control clockwise the signal at the headphone output increases CAUTION The 506E is capable of driving many headphones past the threshold of pain At this volume level hearing damage can occur For your own hearing health monitor at a low sound pressure level Power POWER LED Lights to indicate the presence of AC power 10 Symetrix 506E Headphone Amplifier User s Guide Rear Panel Overview E 2 gt Symetrix OTP RRTOT or OUTPUT DIRECT OUTPUT DIRECT OUTPUT DIRECT OUTPUT DIRECT CUE INPUT PROGRAM INPUTS HEADPHONE 7 S9 INPUT INPUT INPUT WUT O t Sa AMPLIFIER MONO RIGHT LEFT ALAC INPUT 25 WATTS MAXIMUM lo o o o o alt ce FABRIQUE AUX E U PAR SYMETRIX INC LYNNWOOD WASHINGTON R F REZ TOUTE R PARATION A UN TECHNICIEN QUALIFI CONNECTION CONNECTOR TYPE WHAT IT DOES AC Power Input IEC Power Connector Powers the 506E Connect only to the AC power source marked on the rear panel Headphones 1 6 OUTPUT 3 conductor TRS tip ring sleeve For connecting to the optional 1 4 jack Symetrix HR 1 Headphone Remote The minimum impedance of this outp
14. etting Gain Controls Calculating the Maximum Amplifier Load Calculating the Maximum Amplifier Load The minimum operating impedance or maximum load for each output of the 506E is 8 ohms Use as many pairs of headphones as desired as long as the total combined impedance per output does not fall below 8 ohms How Many Headphones of Various Impedances May Be Used With Each Output of the 506E IMPEDANCE OF HEADPHONES MAXIMUM NUMBER CHANNEL 8 1 16 2 32 4 100 10 200 20 400 40 600 60 If You Are Driving Low Imped ance Headphones The quantities noted above reflect usage with typical wide range musical signals If you are driving low impedance headphones 16 ohms or lower actua impedance and you intend to drive them to the brink of amplifier clipping then you should revise the number of headphones possible to 2 headphones at 8 ohms or 4 headphones at 16 ohms In the example of 8 ohms you ll have 2 amplifier channels that aren t doing anything It is OK to use any remain ing amplifier channels with higher impedance phones 50 ohms or higher For maximum output with all chan nels driven try to restrict the lowest combined load impedance to 50 ohms per channel Lower impedance loads simply reduce the maximum output possible If You Are Using Headphones Spec d for 8 Ohms Output Many headphones are spec d as being suitable for 8 ohm outputs They are but this does not mean that t
15. fore sending the unit to Symetrix 18 Symetrix 506E Headphone Amplifier User s Guide Declaration of Conformity We Symetrix Inc 6408 216th St SW Mountlake Terrace Washington USA declare under our sole responsibility that the product 506E Headphone Amplifier to which this declaration relates is in conformity with the following standards EN 60065 Safety Requirements for Mains Operated Electronic and Related Apparatus for Household and Similar General Use EN 55103 2 Electromagnetic Compatibility Product Family Standard for Audio Video and Entertainment Lighting Control Apparatus for Professional Use Part 2 Immunity The technical construction file is maintained at Symetrix Inc 6408 216th St SW Mountlake Terrace WA 98043 USA The authorized representative located within the European Community is World Marketing Associates P O Box 100 St Austell Cornwall PL26 6YU UK Date of issue July 25 2000 Place of issue Mountlake Terrace Washington USA Authorized signature Dane Butcher President 19 Symetrix Symetrix Inc 6408 216th St SW Mountlake Terrace WA 98043 USA Tel 425 778 7728 Fax 425 778 7727 Web site http www symetrixaudio com Email symetrix symetrixaudio com
16. heir actual impedance is 8 ohms In most cases the actual impedance is substantially higher This is good rather than bad For whatever it s worth most decent headphones have actual impedances ranging from 50 ohms and up If You Are Using Multiple Headphones When multiple headphones are required with each output use headphone type Y cords or a breakout box such as the Symetrix HR 1 Headphone Remote A breakout box may have as many paralleled 1 4 stereo jacks as necessary as long as the total combined impedance per output does not fall below 8 ohms CAUTION The 506E is capable of driving many headphones past the threshold of pain At this volume level hearing damage can occur For your own hearing health monitor at a low sound pressure level 7 Symetrix 506E Headphone Amplifier User s Guide Controlling the Volume Level from a Remote Control Using the Symetrix HR 1 Headphone Remote The HR 1 Headphone Remote is designed for use with the 506E unit and is available for separate purchase The HR 1 allows you to make head phone amp outputs available at a remote location It also provides level T control for an individual output as Remote Control 2 well as a Loop Through Output This output provides line level audio that 4 Turn volume is not affected by the HR 1 s gain control up to the control desired sound For figuring headphone impedances level see in this section Calcu
17. lating the v Maximum Amplifier Load Include in HR 1 your calculations both headphones R connected to the 506E s front panel nd jacks and headphones connected to Lome the corresponding HR 1 jacks Mini mum impedance is 8 ohms for 506E s Remote Control 1 headphone outputs The HR 1 Has A Variety of Mounting Options 3 Optional Connect multiple HR 1s Either recessed extruded or flush with 1 4 TRS to TRS cables mounted into studio console furniture Attached to the top or underside of a desk or cabinet Mounted on a microphone stand 1 Connect a 1 4 TRS to TRS tip ring sleeve cable maximum length 200 ft 2 Set gain controls for e PROGRAM INPUT e CUE INPUT if using cue e Headphone OUTPUT where you have connected the HR 1 v v v 506E Front Panel PROGRAM INPUT CUE INPUT OUTPUTS To 5 MONO OG m me Aj me r3 1 r 1 ado SIGNAL pee SIGNAL 1 a SIGNAL lee SIGNAL 1 e SIGNAL je SIGNAL 1 d Symetrix 506E Headphone Amplifier User s Guide Front Panel Overview pe el e q m q q o steht awe on AR d ie B oes e 4 suis 5 wide 6 AS HEADPHONE 2 8 2 8 2 8 2 8 2 8 2 8 2 8 2 8 D CONTROL CONTROL TYPE WHAT IT DOES PROGRAM INPUT CLIP LED Illuminates when the program signal reaches 2 dB below clipping Gain Control Adjusts the level of the program MONO STEREO Switch signal When you turn control full
18. m a power source that does not apply more than 120V rms between the power supply conductors or between either power supply conductor or ground Grounding The chassis of this product is grounded through the grounding conduc tor 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 ground ing 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 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 If the protective ground connection is lost all accessible conductive 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 the plug convenience receptacle and the point where the cord exits from the apparatus Operating Location Do not operate this equipment under any of the following conditions explosive atmospheres in wet locations in inclement weather improper or unknown AC main
19. n What Ships in the Box Getting Help Optional Accessories Notational Conventions in this User Guide Operational Safety Summary Equipment Markings 506E Product Information Product Summary Features Fast First Time Setup Making Hardware Connections and Selections Setting Gain Controls Calculating the Maximum Amplifier Load Controlling the Volume Level from a Remote Control Front Panel Overview w w N NY NNN A N Oo uU Ul Contents Rear Panel Overview Signal Flow Diagram Troubleshooting Hardware Specifications Architects and Engineers Specifications Warranty Service Where to Get Service In Warranty Repairs Out of Warranty Repairs To Get Your 506E Unit Repaired US Customers Only If You Don t Have Factory Packaging Materials Declaration of Conformity 11 13 14 15 Symetrix 506E Headphone Amplifier User s Guide Before You Begin What Ships in the Box Getting Help Optional Accessories Notational Conventions in this User Guide Operator Safety Summary Equipment Markings What Ships in the Box M The 506E unit M IEC power cord M Two 3 5 mm to 1 4 mini jack adapters M 4 rubber feet for mounting to bottom of unit M This user s guide M A warranty card if purchased in USA You can register online at www symetrixaudio com When you register the 506E you get 4 extra years of warranty coverage Getting Help If you have technical questions
20. nal levels The 506E is intended to operate at or near line level 4 dBu is nominal Make sure that the signal you are feeding to the 506E is a line level signal not mic level Check that all systems components are on the same AC ground Check gain settings on upstream equipment The system gain structure should be such that the 506E receives 4 dBu nominal signal Check if the input signal is already noisy No LED display Check if unit is plugged in Verify that AC outlet works 14 Symetrix 506E Headphone Amplifier User s Guide Hardware Specifications Input Output Maximum Input Level Maximum Output Level Input Impedance Output Impedance 21 dBu 2000 ohm load 12V RMS 600 ohm load 21 dBm 60 ohm load 3 3V RMS Program and Cue Inputs 20K ohms balanced Direct Channel Inputs 20K ohms unbalanced 100 ohms Indicators Clip LED Signal LED Lights at 2 dB below onset of clipping Lights at 30 dBu output level Performance Data Frequency Response THD Noise Residual Output Noise Maximum Gain Separation 20 Hz to 20 kHz 0 0 5 dB 0 0596 90 dBu Program and Cue Inputs 20 dB Direct Channel Inputs 10 dB 70 dB 1000 Hz typical Connections Input Program Inputs and Cue Input balanced XLR and balanced TRS Direct Channel Inputs unbalanced TRS Output Unbalanced TRS Power In Standard IEC Power Inlet Physical Size H x W x D 1 72 in x 19 in x 7 25 in 4 4 cm x 48 3
21. pairs To get your Symetrix product repaired under the terms of the warranty l Call us for an RA number 2 Pack the unit in its original packaging materials 3 Include your name address daytime telephone number and a 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 Repairs made in warranty will cost you only one way freight charges We ll prepay the return surface freight If you send us your product in substandard packaging we will charge you for factory shipping materials If you don t have the factory packaging materials please use an oversized 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 will return the unit in Symetrix packaging Of course if the repair is due to operator error parts and labor will be charged 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 packaging materials and freight charges Please remember you must call for an RA number be
22. s 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 inside the 506E In case of failure refer all servicing to the factory Servicing is required when the 506E 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 Equipment Markings RISK OF ELECTRIC SHOCK DO NOT OPEN TO REDUCE THE RISK OF FIRE OR WARNING ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE AVI a RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR SEE OWNERS MANUAL VOIR CAHIER D INSTRUCTIONS No user serviceable parts inside Refer servicing to qualified service personnel l ne se trouve a l interieur aucune piece pourvant entre repar e l usager S adresser a un reparateur comp tent The lightning flash with arrowhead symbol within an
23. to serve you better we request that the Buyer shall prior to shipping Product to Symetrix for warranty service contact Symetrix and secure a Return Authorization Number that shall be included with the returned Product This will facilitate our efforts to keep track of your Product and process your warranty repair as quickly as possible Buyer will prepay all freight charges to ship the Product to Symetrix for warranty inspection and service This warranty is subject to Symetrix s inspection of the Product at its facilities and upon Symetrix s request satisfac tory proof of purchase dated copy of original retail dealer s invoice Symetrix reserves the right to effect repairs to the product with reconditioned components parts Products once repaired under warranty will be shipped to Buyer freight prepaid by Symetrix via United Parcel Service surface or any similar shipper to any location designated by buyer within the Continental United States At Buyer s request and expense Product will be returned via airfreight Outside the continental United States repaired or replaced products will be returned freight collect THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED ARISING BY LAW OR OTHERWISE INCLUDING WITHOUT LIMITATION ANY OBLIGATIONS OF THE SELLER WITH RESPECT TO CONSEQUENTIAL DAMAGES INCLUDING THE WARRANTIES OF MER CHANTABILITY AND FITNESS FOR USE AND OF ALL OTHER OBLIGATIONS OR LIABILITIES O
24. ut is 8 ohms see Calculating the Maximum Amplifier Load for combin ing headphone impedances Be sure to include headphones connected to the corresponding front panel output jack in your impedance calculations The tip contact is the left channel DIRECT INPUT 3 conductor TRS tip ring sleeve Allows separate access to the inputs 1 4 jack of each of the 6 headphone amplifi ers When an input is not used it is normalled to allow signal from the 506E s program inputs and cue input to be fed to this headphone amplifier section When a TRS 1 4 connector is plugged into this jack it breaks the signal path allowing the user to insert a different line level signal into this amplifier section only For example vocalists could use the first 5 headphone outputs to monitor the full program and by patching a click track into DIRECT INPUT 6 the drummer could use headphone output 6 to listen to just the click track 11 Symetrix 506E Headphone Amplifier User s Guide Rear Panel Overview CONNECTION CONNECTOR TYPE WHAT IT DOES CUE INPUT MONO XLR 1 4 TRS 3 conductor balanced input jack 3 conductor balanced input jack 10 kilohm balanced bridging line input intended for signals ranging from 10 dBu to 4 dBu This jack parallels the 1 4 TRS CUE INPUT jack 10 kilohm balanced bridging line input intended for signals ranging from 10 dBu to 4 dBu This jack parallels the XLR CUE INPUT jack PR
25. y counterclockwise no program signal passes When you turn this control clockwise the level of the program signal increases Selects whether the PROGRAM INPUT signal s will be kept separate stereo left and right or summed to mono If you are using stereo left and right inputs set this switch to STEREO If you are using a mono program input or if you wish to sum both PROGRAM INPUTs to mono set this switch to MONO Using MONO you can also check the mono compatibility of your stereo program CUE INPUT ASSIGN LCR Switch CLIP LED Gain Control Assigns the cue signal to the left channel center channel both chan nels simultaneously or the right channel of the headphone outputs Illuminates when the cue signal reaches 2 dB below clipping Adjusts the level of the cue signal When you turn control fully counter clockwise no cue signal passes When you turn this control clockwise the level of the cue signal increases Symetrix 506E Headphone Amplifier User s Guide Front Panel Overview CONTROL CONNECTION CONTROL CONNECTOR TYPE WHAT IT DOES Headphone 1 6 OUTPUTS Headphone Jack SIGNAL LED Gain Control 3 conductor TRS tip ring sleeve 1 4 jack for connecting stereo headphones The minimum imped ance is 8 ohms see Calculating Maximum Amplifier Load for calculat ing combined headphone imped ances Be sure to include in your impedance calculations the head phones conne
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