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SAFETY  PRECAUTIONS

INSTALLATION CONNECTIONS

INTRODUCTION

 DETAILED INSTALLATION

DESIGN PHILOSOPHY

 SPECIFICATIONS & TECHNICAL DATA 

 CARE AND HANDLING

 WARRANTY &  REGISTRATION

OPERATION  MANUAL

T E C H N O L O G I E S  

I N C .

Stereo Preamplifier

 

07X

BALANCE 2

DISC

AUX

PROCESSOR MONO

BYPASS

BALANCE 1

VOL/BAL dB LEVEL

07x PREAMPLIFIER

MAIN  LEFT  RIGHT

VOLUME/BALANCE

Summary of Contents for 07X

Page 1: ...NSTALLATION DESIGN PHILOSOPHY SPECIFICATIONS TECHNICAL DATA CARE AND HANDLING WARRANTY REGISTRATION OPERATION MANUAL T E C H N O L O G I E S I N C Stereo Preamplifier 07X BALANCE 2 DISC AUX PROCESSOR MONO BYPASS BALANCE 1 VOL BAL dB LEVEL 07x PREAMPLIFIER MAIN LEFT RIGHT VOLUME BALANCE ...

Page 2: ...CK 1 SAFETY PRECAUTIONS WARNING TO PREVENT FIRE OR SHOCK HAZARD DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE TO AVOID ELECTRICAL SHOCK DO NOT OPEN THE UNIT REFER SERVICING TO QUALIFIED PERSONNEL Never install or remove the power cord from the chassis unless it has been disconnected from the AC power source first Never pull on the power cord when removing it from an AC power source Grasp it by the p...

Page 3: ...pabilities of the 07X PREAMPLIFIER we recommend that you read this entire manual carefully 2 INTRODUCTION BALANCE 2 DISC AUX PROCESSOR MONO BYPASS BALANCE 1 VOL BAL dB LEVEL 07x PREAMPLIFIER MAIN LEFT RIGHT VOLUME BALANCE BALANCED 2 PROCESSOR OUT BALANCED 1 LEFT RIGHT LEFT RIGHT LEFT RIGHT LEFT RIGHT LEFT RIGHT LEFT RIGHT RIGHT LEFT BALANCED 2 RIGHT LEFT BALANCED 1 LEFT RIGHT DISC AUX PROCESSOR IN...

Page 4: ...lanced receptables on the right side are separate input channels Make sure during installation that the AC power connections are interrupted to the preamplifier and all other components are off While the diagram may be self explanatory we strongly recommend that you read the front panel description on the following page for use instructions 3 INSTALLATION CONNECTIONS BALANCED 2 PROCESSOR OUT BALAN...

Page 5: ... purposes the display shows actual decibel level In other words the default value of 0 on the LEFT or RIGHT channel mode shows that the channel is not attenuated A value of 99 shows the channel is 99 db below full volume 6 The VOLUME BALANCE is controlled by the optical encoder control Clockwise rotation increases level counter clockwise rotation decreases level Left balance is selected by pressin...

Page 6: ...X VOL Changes audio level MUTE Mutes the amplifier ON OFF Turns bias on and off PAGE Cycles through available remote commands BAL 1 BAL 2 DISC AUX Selects audio input PROC Toggles processor loop MONO Combines channels HT BY Toggles bypass mode BAL Selects balance control GENERAL CONTROLS 07X PAGE 1 07X PAGE 2 OFF ON MAIN VOL CH MUTE GUIDE PREV CH OFF ON MAIN VOL CH MUTE GUIDE PREV CH OFF ON MAIN V...

Page 7: ... The advantage of this is that the circuit s perfect stability and transient response are preserved into a wide range of difficult and unpredictable loads Variation in sound which could occur through interactions with interconnect cables and other system elements are thus avoided Until recently perfect volume controls attenuators did not exist This is because conventional stereo potentiometers hav...

Page 8: ...re of high quality The only electrolytics used are in the power supply where large numbers provide enormous filtering capacitance for the supply 5 Semiconductors There are no integrated circuits IC to be found in the circuit path Very high quality dual FETs are the only source of voltage gain and were selected for their superb noise performance and precision matching The remaining semiconductors a...

Page 9: ...tput Input Impedance 20 kOhms balanced or unbalanced Output Impedance 50 Ohms non reactive unbalanced 100 Ohms non reactive balanced Crosstalk 90dB 20kHz Power Supply Specifications Regulated supply with shielded toroidal transformer and 19 800uF of low ESR capacitance and capacitors smoothing the regulator outputs Dimensions Height Width Depth Weight Power Consumption 2 25 Faceplate 2 65 Overall ...

Page 10: ...ss metal and can be scratched by harder tool steels and the grained surface can be easily marred if the amplifier is set face down on a hard surface Do not rest the amplifier on it s faceplate The amplifier should not be left in direct sunlight or exposed to intense heat to avoid damage to internal components or finish It is recommended that you do not throw away any shipping material The box and ...

Page 11: ...e will be corrected by Coda Technologies without charge for parts or labor for a period of ten years from date of original purchase Coda Technologies will provide for surface transportation to and from the factory for a period of one year from date of original purchase ii Procedure If the product should require service under warranty contact Coda Technologies at the location on the back cover of t...

Page 12: ...S Name Address City State Zip Phone Fill in this registration sheet and fax or mail it to Coda Technologies to ensure you are in our warranty system This will facilitate warranty service should it become necessary It is recommended that you retain a copy of this form for your own records Coda Technologies address and fax number are located on the back of this manual 11 WARRANTY REGISTRATION ...

Page 13: ...S Name Address City State Zip Phone Fill in this registration sheet and fax or mail it to Coda Technologies to ensure you are in our warranty system This will facilitate warranty service should it become necessary It is recommended that you retain a copy of this form for your own records Coda Technologies address and fax number are located on the back of this manual 12 WARRANTY REGISTRATION ...

Page 14: ...SACRAMENTO CA 95826 USA T E C H N O L O G I E S I N C 7850 CUCAMONGA AVENUE 34 phone 01 916 383 3653 fax 01 916 455 3653 on the web at CODA CC email us at info coda cc ...

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