Careful, though...the A-135-2 only offers linear VCAs, plus it's DC-coupled. Given those two facts, it's something that should be "deeper" in the modular...with the best location being somewhere in the modulation environment to control modulation amplitude.

What's needed for audio paths...especially end-of-chain situations...is exponential VCAs that are NOT DC-coupled. For one thing, our hearing doesn't follow a linear curve; the decibel scale is exponential, and that's how we perceive "apparent loudness". Also, DC to your amp...I love that thumbnail pic...well: Sort of explains it all, really.