Compact, rack-mountable 2/4 pole resonant low-pass filter module that is the very heart and soul of the Dave Smith sound: featured in everything from Dave's vintage Sequential synths to his recent cutting-edge instruments such as the Prophet 12, this filter tone is brash, saturated, and powerful. It can be plugged into any modular system. The filter is a resonant low-pass design that can be switched between -12 dB and -24 dB operation and driven into self-oscillation in -24 dB mode. A Boost switch allows user to overdrive the input stage for more aggressive coloration. In addition to its Curtis filter, the module provides its own responsive, low-noise VCA with LED CV indicator. There are two separate outputs - one pre-amplifier and the other post-amplifier. This not only provides added signal routing flexibility, but also frees the system's existing VCAs for other tasks. Mounting screws and ribbon cable for power connection are included. Dimensions: 40.3 x 128.5 x 27 mm. Width: 8 HP.