Gently used and in perfect working order! Includes power supply.
The Tetra is state of the art, but features a 100% analog signal path. Its voice architecture is based on the Prophet '08, with two digitally controlled analog oscillators per voice, but with the addition of sub-octave generators for each oscillator. There's a resonant lowpass filter utilizing classic Curtis chips with switchable 2- or 4-pole modes, three DADSR envelope generators, four LFOs, an arpeggiator, and a 16 x 4 analog-style step sequencer (per voice). There are also over 20 different modulation sources and over 40 modulation destinations, as well as a noise generator.