As the special circuit CEM3360 used in the first version of the module is longer available we had to change the design. In modules manufactured from fall 2010 the VCA circuit SSM2164 is used. This circuit is still in production and available without problems. The main difference between the old and the new version of the module is this: for the old version with CEM3360 the maximal amplification was limited to 1. Even if the control voltage is increased the amplification stucks at 1. For the new version with SSM2164 the amplification is not limited to 1. If the control voltage is increased even a higher amplification than 1 is possible. With a corresponding input level this may lead to distortion at the output because the output swing is limited to about +/-10V and clipping occurs. Amplification "1" is obtained at about position "8" (i.e. 3 o'clock position) of the manual control "Gain" for both linear and exponential mode.
Doepfer A-132-3 Dual linear/exponential VCA
Regular price $140.00
A-132-3 Dual linear/exponential VCA