Vamp - Multi-Mode Tube VCF Crossfader This is useful in that

This is useful in that it allows the top section to be easily patched as a standard VCA with a positive going CV

providing both low capacitance

Up to 64 MIDI Setups stored on Roto-Control

It is a multi-tap delay line with over a dozen unique feedback paths and multiple filters within those feedback paths aligned to allow for accumulation of noise

Vamp - Multi-Mode Tube VCF Crossfader This is useful in thatVAMP is a multi mode analogue filter that gives you low pass, band pass, and high pass responses in a compact 8HP design. At its heart lies a classic Sallen Key topology supercharged with real vacuum tube (12AU7) saturation and multiple stages of clipping, letting you move seamlessly from smooth, hi fi filtering to snarling, overdriven character. One half of the tube is used to saturate the input, while the other half powers the resonance feedback