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It’s a Polyphonic Mopho Keyboard! The Mopho x4 builds upon the same award winning voice architecture of the Mopho and Mopho Keyboard, the Mopho x4 boasts huge sound and 4 voice polyphony in an ideally sized, portable, and elegantly designed package. Use it to create huge unison basses, creamy leads, percolating sequences, and ethereal pads. 4 Times the Voice 4 Your Pleasure: each of Mopho x4’s four voices is composed of two analog oscillators, two sub octave generators, selectable 2- or 4-pole famed Curtis low-pass filter, three 5-stage envelope generators, four LFOs, a re-latchable arpeggiator, and a 16 x 4 step sequencer. Its voice also comes packed with 20 modulation sources and almost 50 destinations! FM the filter to create metallic bell-like sounds and use the feedback path to add subtle or destructive harmonic content to your sound. Mopho x4’s 100% analog signal path is powerful, monstrous, and sonically dynamic! Work Less, Play More Mopho x4 is intuitive and inviting. Every parameter is fully programmable and editable from the front panel. The controls are logically laid out, lending themselves to quick access so you can tweak knobs without missing a beat. The x4’s full sized 44-note semi-weighted keyboard has aftertouch and velocity sensitivity. The sturdy full sized pitch and mod wheels are freely assignable and sport smooth reliable action. It Grows with You Expand Mopho x4’s polyphony using it’s Poly Chain port. Mopho, Tetra, and Prophet ’08 can all be connected to the x4 to increase its voice count. You can Poly Chain up to three Tetras with Mopho x4 to create a 16 voice analog super synth! The Mopho x4! Dave Smith Instruments is the only company pioneering and producing fully programmable polyphonic analog synthesizers. In fact Dave’s been at it for 35 years! Designed and manufactured in San Francisco, Mopho x4 has the high quality sound and build for which DSI is renowned. From its feature packed analog voices and unmatched sonic versatility to its refined design and engaging interface, you won’t find a polyphonic analog synthesizer like this anywhere else.


Finding worth and contentment in what you have.

...musings on gear. I'm going to give the Prophet 08 as an example. I'm looking for one, or maybe a mopho X4, to have some nice filter FM DCO tones with a modulation sequencer, I'd take it to Wales and make odd sounds in a cabin or something. Now, second hand Prophet 08s are about £1000....

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Curtis-chipped DSI synths: Mopho x4, Tetra, Prophet Rev2 . . .

...mostly as a monosynth and one-trick-pony (i.e., for Tom Sawyer-style sweeps), so having "only" four voices in something like the Mopho x4 is fine. To me, the Rev2's filter is the king of fizz (which I like), and its more recent implementation of the Curtis chip is noticeably smoother/fizzier than that of the Prophet '08's...

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What Synth Should I Get?

...for budget AND expensive gear too. I would recommend for YOUR question in particular, 1-6 yet in no particular order: 1. Mopho x4 if you're onboard with an aggressive sounding synth, its bass and leads should be able to hang with your other instruments. It should cover your stated needs, with your Strymon acting as...

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