Alyseum Q-VCA II User Manual

ALYSEUM - Q-VCA II - User manual

Introduction

The Q-VCA II module is a versatile, dynamic and high quality quad VCA.

After 6 years, feedback from Q-VCA users has led to an improved MK II

version.

The classic features are:

●

100% Analog path.

●

Toggle switch to select exponentially or linearly curve control.

●

All inputs, control & outputs are DC-coupled and beyond audio.

●

Inputs cascading to multiple VCA .

●

Toggle switch to select gain 0,5X or 1X of the MIX Out.

In addition to VCA control by CV, 4 unique modes are available:

1. Manually via the potentiometer.

2. By a programmable MIDI controller (CC).

3. Associated with MATRIX II - Requires crossover between VCA and

potentiometer values to avoid level jumps.

4. Associated with MATRIX II - Turn the potentiometer and the VCA

is instantly updated.

The use of the Q-VCA II as an extension to the MATRIX II allows

the latter to :

●

Freely add 4 mixable sources to each of its 15 inputs.

●

Freely add 4 mixable destinations to each of its 16 outputs.

●

And for each MATRIX II memory to store the VCA levels.

Table of Contents

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Page 1 4. Associated with MATRIX II - Turn the potentiometer and the VCA is instantly updated. The use of the Q-VCA II as an extension to the MATRIX II allows the latter to : ●...
Page 2: Package Content
D/A 1 CV IN 1 OUT MIX MIDI PGM D/A 2 MODE PGM CV IN 2 D/A 3 CV IN 3 MIDI IN D/A 4 CV IN 4 Q-VCA II Q-VCA II User’s manual © - Revision 3.0 - Page 2...
Page 3: Installation
● The MATRIX II MIDI Out must be connected to the MIDI Input of the Q-VCA II module. You can easily chain several modules, please connect the MIDI THRU to the MIDI IN of the next module, and more as necessary.
Page 4: How To Use
At each time a VCA receive a valid MIDI CH+CC, blink twice time the corresponding LOCK LED. NB : The 4 potentiometers are not operant in this mode. Programming MIDI command Q-VCA II User’s manual © - Revision 3.0 - Page 4...
Page 5 At each time you turn the potentiometer, the corresponding green LED LOCK blink one time. MIDI SYS-EX These commands are generated by the MATRIX II, of course, if you will control the Q-VCA II by any software, welcome. Please note that no support or assistance will be provided!
Page 6: Warranty And Repair
Warranty and repair ALYSEUM warrants to you, the original purchaser, that each of its products will be free from defects in materials and workmanship for a period of two years following the date of purchase.