The Bass Station II Monophonic Analog Synthesizer from Novation is a 25-key synthesizer with assignable aftertouch that, while designed for bass synth sounds, is also capable of leads and arpeggiated performance. It features two analog oscillators and a third sub-octave oscillator. The tones its oscillators produce can be modulated, shaped, and altered by the Bass Station II's Classic and Acid filters, dual ADSR envelope generators, 2 LFOs, and analog distortion.