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INTRODUCTION

CONTENTS

DESCRIPTION

GETTING STARTED

DC THRESHOLD SETTINGS

TIME CONSTANT SETTINGS

APPLICATIONS

SPECIFICATIONS

SIGNAL FLOW

TROUBLE SHOOTING

REGISTRATION

WARRANTY STATEMENT

RECALL SHEETS

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TABLE OF CONTENTS 

Thank you for choosing the HERCHILD Model 670.  Heritage Audio is dedicated to bringing you ´the sound of yesterday 

for tomorrow´.  We specialize in capturing that unique, enticing sound that everybody has fallen in love with.  For years 

engineers, producers and musicians have been yearning for that classic vibe.  Usually the only option is to search for 

old, used original equipment that is almost always in a questionable state of operation.  This brings with it a whole lot of 

other issues, making the experience less than desirable.  Not to mention the very high prices asked for this equipment, 

which makes them virtually unobtainable for the great majority.  Now it´s possible to obtain that same sound with a 

brand new piece that will give you all the problem-free, heavy-duty use you´ll need for years of music making history.

Peter Rodriguez 

CEO

Heritage Audio - Madrid, Spain 

INTRODUCTION 

© 2022 Heritage Audio S.L. is the sole owner of the copyright of all information and drawings contained in this manual which are not to be copied or 
reproduced by any means or disclosed in part or whole to any third party without written permission. 

Heritage Audio reserves the right to alter specifications without notice. The information in this manual has been carefully checked and is believed to 
be accurate at the time of publication. However, no responsibility is taken by us for inaccuracies, errors or omissions nor any liability assumed for any 
loss or damage resulting either directly or indirectly from use of the information contained within it. 

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HERCHILD 670

 

AC POWER CORD EU & US

 

Summary of Contents for HERCHILD 670

Page 1: ...USER MANUAL April 2022 Rev 1 0 DUAL CHANNEL TUBE COMPRESSOR AMERICAN HERITAGE MODEL 670...

Page 2: ...s asked for this equipment which makes them virtually unobtainable for the great majority Now it s possible to obtain that same sound with a brand new piece that will give you all the problem free hea...

Page 3: ...ly combines adjustments to the progressively developing curved RATIO and the KNEE simultaneously through 4 different settings varying from a gentle slope to a more pronounced and aggressive slope This...

Page 4: ...attenuator that reduces the the input by up to 20dB 9 AC THRESHOLD The threshold knob determines when the compression begins It s used to decide when and how much gain reduction takes place When in th...

Page 5: ...IND and refers to each channel being individual with it s own independent control The next LINK will tie the channels together and base the compression applied on whichever channel is producing the m...

Page 6: ...conds for individual peaks 10 Seconds for multiple peaks 5 Seconds 2 Seconds 8 Seconds 3 Seconds ATTACK 1 2 3 4 5 6 TIME CONSTANT SETTINGS MEDIUM KNEE PROGRESSIVE LOWER RATIO HARD KNEE HIGH RATIO LIMI...

Page 7: ...TOR SPEAKERS THUNDERBOLT COMPUTER LEAD VOCAL CHANNEL 1 BACKGROUND VOCAL CHANNEL 2 BACKGROUND VOCAL OUTPUT 2 LEAD VOCAL OUTPUT 1 PROCESSED LEAD VOCAL LINE INPUT 1 AUDIO INTERFACE PROCESSED BACKGROUND V...

Page 8: ...RBOLT COMPUTER BASS GUITAR CHANNEL 1 ELECTRIC GUITAR CHANNEL 2 PROCESSED BASS GUITAR LINE INPUT 1 AUDIO INTERFACE PROCESSED ELECTRIC GUITAR LINE INPUT 2 BASS D I INPUT CH 1 GUITAR FX PEDAL BASS OUTPUT...

Page 9: ...EAKERS THUNDERBOLT COMPUTER MIX LEFT CHANNEL 1 MIX RIGHT OUTPUT 2 MIX LEFT OUTPUT 1 PROCESSED MIX LEFT LINE INPUT 1 AUDIO INTERFACE PROCESSED MIX RIGHT LINE INPUT 2 MIX RIGHT CHANNEL 2 TWO POSSIBLE OP...

Page 10: ...g for the unit to ventilate correctly SUCCESSOR LEFT RIGHT LINE OUTPUTS LEFT RIGHT LINE INPUTS MASTERED MIX STEREO MIX DAW LEFT RIGHT LINE OUTPUTS MOTORCITY EQ LEFT RIGHT LINE OUTPUTS HERCHILD 670 LEF...

Page 11: ...T COMPUTER BASS GUITAR CHANNEL 1 BASS DRUM CHANNEL 2 PROCESSED BASS GUITAR DAW LINE INPUT 1 AUDIO INTERFACE 7 BASS GUITAR D I INPUT CH 1 BASS DRUM MIC INPUT CH 2 LINKED OPERATION NECESSARY BASS DRUM D...

Page 12: ...put Level 4 or 8 VU 30dBu clipping point Frequency Response 40Hz to 15kHz 1db Self Noise Less than 82dBu Harmonic Distortion Less than 1 at any level up to 18dBu output no limiting Dimensions W x H x...

Page 13: ...the VU meter don t seem to correspond with what is actually happening Sounds like it s time for some calibrating The compression I am getting is altogether too aggressive for what I am looking for Tr...

Page 14: ...ase date The warranty excludes problems due to normal wear abuse shipping damage or failure to use the product in accordance with the specifications Heritage Audio shall not be liable for damages base...

Page 15: ...RECALL SHEETS 12 Session Title Track Connected Equipment Date Instrument Notes...

Page 16: ...www heritageaudio com HERITAGE AUDIO C Alfonso G mez 38 3C 28037 Madrid Spain Tel 34 917 266 189 info heritageaudio com...

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