- Four voices, each with two analog oscillators and two sub-octave generators
- 44 semi-weighted keys with aftertouch
- Genuine 2/4-pole-selectable Curtis lowpass filters
- Each voice sports three 5-stage envelope generators and four LFOs
- Relatchable arpeggiator and 16 x 4 step sequencer per voice
- USB 2.0 port enables bidirectional MIDI communication with a computer
- Expandable via Poly Chain port
- Designed and manufactured in San Francisco, USA
- More Info: Dave Smith Instruments Mopho x4