This is a great filter. It can be creamy or gnarly - nothing else sound like it! Radiohead swears but this module. I'm selling it because I'm out of room.

The RS‑110’s actual circuit topology is original, not a reproduction. The RS‑110 “eschews the use of filter chips used by other manufacturers” and is built from discrete components. It is described as having a “unique character that sets it apart from the crowd.” This is very different from many Eurorack filters.

• 18 hp
• 2.5 inches Depth
• 70 mA +/-12V
• Power Ribbon and Screws included.
• Slight rack rash.

Product Blurb

The RS110 consists of a two channel audio mixer followed by four, parallel, resonant filters with voltage controlled frequency and a unique "insert" point in the feedback path that generates and controls resonance.

The RS110 offers four filter modes. These are 24dB/oct low-pass, 24dB/oct high-pass, 12dB/oct band-pass and 12dB/oct band reject (often called 'notch') filtering, with the cutoff frequencies (Fc) of the high-pass and low-pass outputs being the centre frequencies of the band-pass and notch outputs. Each of these filter characteristics is described in appendix 2.

There is no switch to select between the modes because all four are available simultaneously from the appropriate output sockets. However, the cut-off and resonance can not be defined individually for each, and the controls act upon each mode equally.