Universal Audio Processor (UAP)

dual VCA, Pan, Xfade

Universal Audio Processor (UAP)

Pro: Ideal small-system VCA, two VCAs really, cross-connected to provide panning, crossfading, or two independent VCAs Nice compact arrangement. This is an 'interface' module also in that its two output channels have both the banana jacks and 1/4" jacks (you can ask for minis or other jacks instead I think).

Wizardry: Be careful setting this one up! The Serge VCAs have very wide dynamic range. If you have your power amp cranked too high you may destroy your speakers and your eardrums. Since it's got the all-important 1/4" jacks, sometimes this module gets used for nothing more than interfacing. Turning the gain up past 12 noon gives you unity gain through a few dB's of gain, so you can treat it as a master volume/pan/interface in addition to being a regular VCA. The AM inputs are ac coupled and nice for tremolo or ring-modulator type sideband effects.

(text from EGRES)

http://www.serge-fans.com/wiz_vca_mix.htm