Whats the difference between a Dave Smith Instruments Mopho and a Tetra?
The Mopho is monophonic (hence the name MOnoPHOnic) while the Tetra has four voices of polyphony. In fact, you could think of the Tetra as being pretty much the equivalent to four Mophos in one box. Each voice in the Tetra can be assigned its own sound for multitimbral operation, and each can be routed to a separate output. A Combo mode allows the four Tetra voices to be layered together to create a “superpatch.” The Tetra also features USB connectivity. Sonically, there is little difference between the two, so if you are looking for a fat analogue synth for leads or basses, the Mopho will work fine. If you need chords or multitimbral/layered operation, then the Tetra is your machine.