Module A-108 is a completely new, unique voltagecontrolled low pass/band pass filter based on the well-known transistor ladder (Moog ladder).
The module has internally an 8 stage low pass filter with different slopes available: 6, 12, 18, 24, 30, 36, 42 and 48 dB per octave. In the factory the outputs with 6, 12, 24 and 48 dB are connected to the four low pass sockets at the front panel. In addition it features an band pass output (i.e. band pass with transistor ladder). The module has manual controls for frequency and resonance available. Resonance can be adjusted right up to self-oscillation, in which case the filter will behave like a sine wave oscillator. Three CV inputs for frequency control are available. Two of them are eqipped with attenuators. The A-108 features an external feedback input that enables the insertion of additional modules into the
feedback path. The audio input is very sensitive so that distortion is possible even with normal A-100 levels.
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