Monophonic analog synths are all the rage these days. Unfortunately, so too are tiny keyboards or few octaves.

The Mopho is what you’ve been asking for. It has 44 keys, semi-weighted, with not only velocity but aftertouch, too. That means you don’t need to relegate your monosynth to tiny basslines and carry another controller.

You also get a metal enclosure, now with artwork screen-printed on directly, plus the soft-touch knobs from the Prophet 12.

And one killer feature, for people who hate yellow, or fear school buses or bees: it’s a tasteful gray color, not the shade of a canary.

MAP: US$949, shipping end of October.

Of course, you could still get a Mopho module (or one of DSI’s other great modules) and use that plus a controller keyboard of your own choosing. But it’s nice to see this all-in-one design.

The Mopho sounds as nice as ever: listen to the original model for an idea.

Specs, as always: analog 2-oscillator, a nice switchable Curtis low-pass filter, fun step sequencer and arp, USB and MIDI. So you get lots of fun in one package, and a package you can easily lift.

Specifics, from DSI:

100% analog signal path
Two oscillators capable of producing sawtooth, triangle, saw/triangle, and variable pulse width square waves, with hard sync
Two sub-octave generators (one octave below oscillator 1 and two octaves below oscillator 2)
One classic Curtis low-pass filter (switchable 2- or 4-pole) with audio rate modulation, self-oscillating in 4-pole mode
Analog VCA
Three envelope generators (ADSR plus delay)
Feedback loop with programmable level and gain
White noise generator
4 LFOs
Gated 16 x 4 step sequencer (one sequence per program)
Glide (portamento): separate rates per oscillator
Full-sized, 44-note (F to C), semi-weighted keyboard action with velocity and aftertouch
Full-sized modulation wheel and spring-loaded pitch wheel
Fully programmable with 3 banks of 128 user programs (384 total)
Mopho SE Signal Flow Diagram

USB type B receptacle
MIDI In, Out/Thru, and Poly Chain
Left and Right audio outputs: 1/4″ phone jack (unbalanced)
Audio Input: 1/4″ phone jack (unbalanced)
Sustain pedal input (accepts normally on or off momentary footswitch with 1/4″ phone plug)
Expression pedal/control voltage (3.3 VDC max.) input (1/4″ TRS phone jack)
Headphone output: 1/4″ TRS stereo phone jack
Physical Specs
Dimensions: approximately 25.2″ L x 11.1″ W x 3.6″ H (64 cm x 28.2 cm x 9.1 cm)
Weight: 13.25 Lbs
Power supply for 100V – 240V AC operation
Operation manual
Free downloadable software editor for Mac OS and Windows

Made in San Francisco.

Product page:

More photos soon – we’re waiting on DSI to send them to us!

  • Derek

    So how is this different from the original Mopho Keyboard, aside from the color and added keys?

    • http://pkirn.com/ Peter Kirn

      Nope, that’s it.

    • Derek

      So $949 MAP (street?), meaning you’re paying $150 more for some extra keys and a black paint job? I’m a fan of DSI, and I own the Mopho Keys, but this just seems lazy. When the Mopho X4 was released, I thought it was lackluster; they should have really made it the Tetra Keyboard and had the multi-timbrality. Now, this. I fail to see why anyone would buy this when they can just spend a small amount of extra money and get 3 more voices, or they can spend less money and get the same synth with a few less keys (and yes, yellow, which I actually don’t hate). What am I missing here? It seems like they’re spending their time rehashing old ideas instead of looking to the next thing (I know, I know, they just released the Prophet 12).

    • youngcircle

      Oh Derek, fuckin-a, thanks SO much for your sharp rebuke that has made me see the light. Dave Smith is pretty much a fraud, what’s he trying to fucking do anyway, come out with a broad line of products with various feature sets and different prices? Is he trying to come out with a “line” of “analog instruments” or some shit?? “What about the people who MADE YOU WHO YOU ARE, DAVE. What sort of a “line” to you have in mind for them??”

      Fraud. Lazy. Look at his career a little closer and it all starts to fall apart. Besides all the synthesizer “firsts” like first polyphonic, multi-timbral, software synth, micro-processor controlled synth, etc. etc, bla bla bla (yawn), besides the iconic and groundbreaking Prophets, besides the more recent Tempest (which I think is easily the funnest and best-sounding percussion-based instrument in the world), and please please PLEASE don’t mention “midi”. Which he supposedly “invented,” even though I or you or pretty much anyone could have done a better job on. Besides midi, what has he really done?

      He’s lazy, compared to someone like my bro Derek (or “D” on the streets).

    • Will

      Total overreaction but pretty damn funny anyway.

    • Derek

      Wow. I never called Dave a fraud. All I’m saying is that with three versions of the Mopho already out there, why release another one, at least one that doesn’t really add anything.

  • gLOW-x

    A little expansive…

    • http://pkirn.com/ Peter Kirn

      Actually, that shows how much things have changed – this was fairly recently *not* considered that much for a synth of this kind.

  • http://brunoafonso.com Bruno Afonso

    Does it have polyphonic aftertouch?

  • Aescmor

    People are kind of missing the point. This would go really nicely with a DSI Tetra.

    • john_truckosaurus

      Yeah, I actually think it seems kind of awesome. I also think it makes sense for them to capitalize on their existing tech in different form factors.

    • Aescmor

      Better than wasting components, like some companies might. I’m sure the price will come down a little bit in the new year anyway.

  • http://vrpr.org/ Henry

    Funnily, it pushes all the right buttons for me: I actually dislike the hideous yellow colour, those small knobs on the “original” Mopho keyboard are just a little bit too small for my taste, and the 25 keys always seemed to be that little bit too few – I feel 37 are just about the right compromise between portability and form factor.

    However, it still doesn’t kick me… And I just don’t understand why…

    Btw, it’s interesting to see that it seems to be exactly the same housing for the SE as it is for the X4, while the former weighs 13.25 lbs and the latter only weighs 9.4 lbs. And actually, the 25-key Mopho is spec’d to weigh “under 10 pounds”. Do the guys at DSI have their own physics??