ACL VC Dual Delay User Manual Download Page 3

1. INTRODUCTION

Audiophile Circuits League

.

-VC Dual Delay consists of 2 equal, independent 

delays A and B, each with its own feedback loop, each contains a 6dB HP and a 
6dB LP �ilter (not VC), but the internal feedback loop can be opened by patching 
a cable into the “IN FB” - jacks to route other signal-processing modules into the 
feedback-loop. Please note that there is no “Dry-Signal”-path. By designing the 
module, we thought, it would be mostly used in combination with other modules 
to achieve some echoes and reverberated ambience, one could put one delay in 
the feedback-path of another delay for example – there are many different 
routing con�igurations, achieving strange modulated reverberated space by 
combining several Dual VC Delay-modules in various manner.

Due to its vast �lexibility, the module offers load´s of possibilities for 
hours-longing sessions of mangling signals, pitch modulation and the generation 
of fantastic ethereal outer galactic spaces.

Used in parallel / stereo-mode, it generates voltage controlled modulated spatial 
effects with its own special character. The sound of the Princeton PT2399 delay 
chip often reminds for BBD-circuit´s which principle in fact shares similarities 
with the function of the PT2399 chip. Because the audio - and CV - input´s are 
normalized in the scheme of A→B, the module is following your needs for many 
different patching situations easily. The sonic possibilities of using several 
module together can be mind blowing, especially when the almost endless 
possibilities of different feedback-routing are explored.
(For details about normalization, see 5. CHARACTERISTICS section)

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Summary of Contents for VC Dual Delay

Page 1: ...VC Dual Delay User s Manual Eurorack Synthesizer Modules 21HP...

Page 2: ...TABLE OF CONTENTS 1 INTRODUCTION 2 WARRANTY 3 INSTALLATION 4 FUNCTION OF PANEL COMPONENTS 5 CHARACTERISTICS 6 FEEDBACK ROUTING 7 SPECIFICATIONS 2...

Page 3: ...several Dual VC Delay modules in various manner Due to its vast lexibility the module offers load s of possibilities for hours longing sessions of mangling signals pitch modulation and the generation...

Page 4: ...er supply accessories Failure damage caused by incorrect connection or use of power cable Failure damage caused by improper handling method Failure damage caused by natural disasters ire looding etc a...

Page 5: ...Eurorack power connector Connect the red mark on the power cable so that it matches the pin on the 12 V side of the power connector Connect the 10 pin connector to this product side Projection is pro...

Page 6: ...the audio signal from the IN input jack for delay processing Audio input is not performed when knob is completely closed As a result the sound output from the delay will also be muted Please take care...

Page 7: ...UT ilter as described above CV ZOOM switch Select the CV resolution of RATE CV knob with this switch By setting it to X 10 the resolution becomes ten times iner PARALLEL SERIAL switch Switch between p...

Page 8: ...efer to FEEDBACK knob CV input jack Input to control the delay time with the CV signal RATE CV knob functions as an attenuverter DELAY output jack It outputs the delayed signal FLT FB output jack It o...

Page 9: ...nd process both A and B delays from one cable input See FIG 4 This feature economizes the need to duplicate signals using external multiple modules Conversely when inputs A and B are performed using t...

Page 10: ...LO CUT HI CUT Filter A Delay B Mix Mix Delay A IN B IN A FEEDBACK A FEEDBACK B LO CUT HI CUT Filter B PAR Feedback Route IN A IN B IN FB A IN FB B Normalisation Normalisation FLT FB OUT A FLT FB OUT...

Page 11: ...UT HI CUT Filter A Delay B Mix Mix Delay A IN B IN A FEEDBACK A FEEDBACK B LO CUT HI CUT Filter B CROSS Feedback Route IN A IN B IN FB A IN FB B Normalisation Normalisation FLT FB OUT A FLT FB OUT B O...

Page 12: ...7 SPECIFICATIONS Power Eurorack system power supply Width 21 HP Depth 22mm Power consumption Ca 40mA on 12V ca 85mA on 12V Accessories Eurorack power cable x1 Mounting screws x4 12 ACL E DD 1707 1...

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