This video, via FunkyjunkItaly, is a quick demo of the Dave Smith Instruments DSM01 Curtis Filter For Eurorack modular synthesizers.

The DSM01 is a compact, 8 HP Eurorack-format module. 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 lets you overdrive the input stage for more aggressive coloration.

In addition to its Curtis filter, the DSM01 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 gives you added signal routing flexibility, but also frees your system’s existing VCAs for other tasks.

Smith calls the filter ‘the very heart and soul of the Dave Smith sound’.

The Dave Smith Instruments DSM01 Curtis Filter module is available for US $179. See the DSI site for more info.