This product has been discontinued , the new version can be found here
The C101 OTA Lowpass filter is a four pole low pass filter ( 24db/octave ) based on four cascade OTA-stages. The design is similar to the one found in classic synthesizers like Roland System 700, Roland System 100m, Roland SH-1, SH-7, SH-101, Roland Jupiter 8, Jen SX1000 and many more.
When the Resonance control is set at a high value the filter will start to oscillate and the C101 can be used as a sine wave VCO. The filter will track perfectly over at least 5-6 octaves and is also temperature compensated.
In many 4-pole low pass filters the output volume drastically drops when the resonance is increased. The C101 OTA Lowpass filter is specially designed to maintain a constant output level at any resonance value ( with the exception of when the filter is set to auto-oscillation ).
Another important feature is that the C101 has voltage controlled resonance.
C101 main characteristics
The C101 OTA Lowpass filter is built using high quality electronic components, Switchcraft jacks, Cosmo knobs (the same used by Moog Modular) , silk screened front-panel….
- Module Format : 5U, MU format ( Synthesizers.com, Moog )
- Module Width : 2 MU ( Moog Unit )
- Power : +15V@23,2mA , -15V@22,1mA
- Power connectors : Synthesizers.com , MOTM ( 4 pin )
- Frequency Range :15Hz – 21 KHz
- Signal Levels : Typical 10Vpp ( -5V to +5V )