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INTRODUCTION

CONTENTS

DESCRIPTION

COMPLETE FREQUENCY DESCRIPTIONS

INDIVIDUAL FREQUENCY DESCRIPTIONS

GETTING STARTED

APPLICATIONS

SPECIFICATIONS

SIGNAL FLOW

TROUBLE SHOOTING

WARRANTY STATEMENT

REGISTRATION

RECALL SHEETS

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INTRODUCTION 

TABLE OF CONTENTS 

Thank  you  for  choosing  the 

MOTORCITY  EQualizer

.  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 

© 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. 

MOTORCI

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AC POWER

 CORD EU

 & US 

POWER SU

PPLY HA-P

SU04

Summary of Contents for MOTORCITY EQualizer

Page 1: ...USER MANUAL August 2022 Rev 1 0 7 BAND PASSIVE EQ AMERICAN HERITAGE...

Page 2: ...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...

Page 3: ...lization circuit we incorporated is identical to the original design And with the 10 gauge hand brushed aluminum face plate historically accurate control layout including custom molded bakelite knobs...

Page 4: ...4 COMPLETE FREQUENCY DESCRIPTIONS 100 1000 10000 Hz dBu 15 10 5 0 5 10 15 50 Hz 130 Hz 320 Hz 800 Hz 2000 Hz 5000 Hz 12500 Hz...

Page 5: ...UENCY DESCRIPTIONS 5 50 Hz Boost Cut Curves 100 1000 10000 Hz dBu 15 10 5 0 5 10 15 50 Hz Usually felt more than heard Adds weight a solid foundation and hits in the chest Can increase Low end rumble...

Page 6: ...6 130 Hz Boost Cut Curves 100 1000 10000 Hz dBu 15 10 5 0 5 10 15 130 Hz Add for warmth deeper sound and more thump Too much makes things boomy too little makes things too thin BASS...

Page 7: ...20 Hz Boost Cut Curves 100 1000 10000 Hz dBu 15 10 5 0 5 10 15 320 Hz Used to add bass presence definition and fullness Too much makes things muffled and muddy too little makes things hollow LOW MIDRA...

Page 8: ...8 800 Hz Boost Cut Curves 100 1000 10000 Hz dBu 15 10 5 0 5 10 15 800 Hz Helps to make things stand out in the mix Too much can produce honk and cause ear fatigue so use carefully MIDRANGE...

Page 9: ...st Cut Curves 100 1000 10000 Hz dBu 15 10 5 0 5 10 15 2 kHz Used to add presence and definition of attacks of drums percussion and add crunch whack Too much will cause ear fatigue so use carefully UPP...

Page 10: ...oost Cut Curves 100 1000 10000 Hz dBu 15 10 5 0 5 10 15 5 kHz Used to add clarity to signals and give them an edge Too much will make things harsh and irritating while reducing will distance the sound...

Page 11: ...11 12 5 kHz Boost Cut 100 1000 10000 Hz dBu 15 10 5 0 5 10 15 12 5 kHz Used to make things sparkle and to add air Too much will accentuate hiss and cause ear fatigue BRILLIANCE...

Page 12: ...2 1 GND Hot Cold MALE XLR FEMALE XLR 1 2 3 4 5 STEPPED ROTARY SWITCH 8 dB at 50 Hz STEPPED ROTARY SWITCH 8 dB at 130 Hz STEPPED ROTARY SWITCH 8 dB at 320 Hz STEPPED ROTARY SWITCH 8 dB at 800 Hz STEPP...

Page 13: ...TOR SPEAKERS THUNDERBOLT COMPUTER LINE INPUT AUDIO INTERFACE D I INPUT PREAMP TT 73 OUTPUT PREAMP TT 73 TRACK INSERT MONITOR SPEAKERS THUNDERBOLT COMPUTER LINE INPUT AUDIO INTERFACE LINE OUTPUT AUDIO...

Page 14: ...SERT MONITOR SPEAKERS THUNDERBOLT COMPUTER AUDIO INTERFACE LEFT RIGHT LINE INPUTS PROCESSED STEREO MIX STEREO MIX DAW LEFT RIGHT LINE OUTPUTS MOTORCITY EQ LEFT RIGHT LINE OUTPUTS MOTORCITY EQ LEFT RIG...

Page 15: ...TER AUDIO INTERFACE SUCCESSOR LEFT RIGHT LINE OUTPUTS LEFT RIGHT LINE INPUTS MASTERED MIX STEREO MIX DAW LEFT RIGHT LINE OUTPUTS MOTORCITY EQ LEFT RIGHT LINE OUTPUTS HA 609A LEFT RIGHT LINE OUTPUTS HA...

Page 16: ...Bu into 600 internally terminated THD Less than 0 025 at 1 kHz Less than 0 05 at 100 Hz Frequency response 20 Hz 0 3 dB to 20 kHz 0 2 dB Self noise Less than 100 dBu Power consumption Less than 90 mA...

Page 17: ...on When I activate the equalizer there is just too much of an increase in the signals volume Adjust the OUTPUT GAIN knob to a lower position to compensate for any big equalizer adjustments of frequenc...

Page 18: ...hase 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 bas...

Page 19: ...RECALL SHEETS 19 Session Title Track Connected Equipment Date Instrument Frequency Notes Session Title Track Connected Equipment Date Instrument Frequency Notes...

Page 20: ...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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