A new analog polyphonic synth, Tetra's four voices feature a 100-percent analog signal path and 4-part multitimbral operation with individual outputs per voice.

Tetra is basically four Mophos in a compact (7.9x5-inch, LxW) enclosure, a sort of mini-Prophet with a couple of extra tricks: a sub-octave generator for each oscillator and feedback. With a street price of approximately $799, Tetra can be poly-chained with additional Tetras or a Prophet ''08 for up to 16-voice polyphony.

Other features include Combo mode, used to combine four programs into unison or poly “super-patches.” Combos can also play four 16x4 step sequences—one per voice/program—simultaneously. In Multi mode, each of Tetra''s voices responds to a different MIDI channel. Tetra is also the first DSI product to feature USB.

Find out more about the DSI Tetra.