beautypg.com

A-135, System a - 100 – Doepfer A-135 VC Mixer User Manual

Page 4

background image

A-135

VC-Mixer

System A - 100

doepfer

4

Fig. 2:

Resulting amplification with bipolar control
voltage (CV) and different gain settings

3

ext. CV

This attenuator affects the level of voltage control at
socket ". It controls the amount of effect the CV has
on amplification.

4. In / Outputs

!

Audio In

The signals you wish to amplify are input through the
four audio inputs !.

"

Audio Out

The output signal " is the sum of the four audio inputs
amplified by the four VCAs.

§

ext. CV

Sockets § are the control voltage inputs.

The effective control voltage range of each VCA goes
from 0 V (no amplification) to about +5 V (maximum
amplification). The effective control voltage is the sum
of the voltages coming from the gain control 2 (about
0...+5V), and the external control voltage § that may
be attentuated with control 3.

CV

Output ( Gain = 0 )

Output ( Gain > 0 )

Output ( Gain >> 0 )

Input