ABL Pro is mainly designed to be used as monophonic sequenced type of instrument. However it can be played polyphonically, or polyphonically sequenced. The instrument comes with a variety of patches: sequenced, polyphonic, monophonic, fx, etc.
Most modules send or accept control voltage (CV) which means the signal path can be modified in real time without any glitches in the audio. Sequencer has CV Gate/Note output and can be used when playing ABL Pro in Note mode, monophonic- or polyphonically.
AUX signal processing
ABL Pro can process external signals, for example through its filter. The AUX envelope follower outputs CV which allows you to patch up interesting effects. Even limiter and compression type of effects can be achieved.
The instrument contains an excellent self oscillating filter with tracking and filter modulation from oscillators, and has a 22kHz range (at 44.1kHz sampling rate).
The envelopes are extremely snappy and evaluated every sample, no approximations here.