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The DSM01 Curtis Filter from Dave Smith Instruments is a filter module for modular synthesizer. Housed in an 8 HP Eurorack-format, the module features Dave Smith's signature filter sound, found in everything from his vintage Sequential synthesizers to the more recent offerings such as the Prophet 12.
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 for overdriving 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 provides added signal routing flexibility, but also frees the host system's existing VCAs for other tasks.
Filter module that brought some of the world's most in-demand synthesizers their classic tone and vibe
8 HP Eurorack-format
Resonant low-pass design that can be switched between -12 dB and -24 dB
Filter can be driven into self-oscillation in -24 dB mode
Boost switch for overdriving the input
Responsive, low-noise VCA with LED CV indicator
In the Box
Dave Smith Instruments DSM01 Curtis Filter - For Modular Synthesizers
Power Ribbon Cable
One (1) Year Limited Warranty
Table of Contents
1 x 1/8" (3.5 mm) TS CV In - Frequency Range: 0 to 10V 1 x 1/8" (3.5 mm) TS CV In - Resonance Range: 0 to 10V 1 x 1/8" (3.5 mm) TS CV In - VCA Range: 0 to 10V 1 x 1/8" (3.5 mm) TS Audio In: +/-5V or 10V p-p 1 x 1/8" (3.5 mm) TS VCF Out: Pre VCA 1 x 1/8" (3.5 mm) TS VCA Out: Post VCA
Self oscillation in -24 dB/octave mode, tracks at 1V/octave
Internal power connector to modular frame (ribbon cable included) Current Draw: +12V @ 36 mA, -12V @ 25 mA