cwejman vca-4mx price : $625.00

the vca-4mx consists of four individual voltage controlled amplifiers. all amplifiers are identical and work in a semi-logarithmic mode. amplifiers accept both dc and ac signals. the vca-4mx has eight outputs for maximal flexibility; all amplifiers has an individual output, two summing outputs for all amplifiers (both normal and inverted) and additionally two summing outputs for vca1 + vca2 and vca3 + vca4.

the vca-4mx can be used as quad attenuator (using all four amplifiers separately), as a four input mixer (using summing outputs) and as two separate two inputs mixers. all amplifiers has a dedicated level controller (knobs) and cv inputs which controls outgoing signals attenuation in semi-logarithmic mode. the manual controllers (knobs) determinates the maximal amount of controlled gain (or rather attenuation). the semi-logarithmic transfer function is much more practical than a true logarithmic because it's "imitates" the natural behaviour of volume controllers

performances:
total frequency controllable range: dc to 50 khz
maximal input/output audio signal: 20 volts p-p

level's: manually (knobs) or semi-logarithmic. 0db gain @ +5 volts cv input. -80db gain @ 0 volts cv input. less than 0.1% @ 10 volts input audio impedance: 20kohms
inputs / outputs: 1kohms

current consumption: 30ma
dimensions: 128.4mm (h), 50.4mm (b) 3 he, 10te

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