Dave Smith Instruments Mopho x4 Keyboard Synthesizer

Full Description

Each of the Mopho x4's four voices comprises two analogue oscillators, two sub-octave generators, selectable two- or four-pole Curtis low-pass filter, three five-stage envelope generators, four LFOs, a re-latchable arpeggiator and a 16 x 4 step sequencer. It also boasts 20 modulation sources and almost 50 destinations. Metallic bell-like sounds can be created when you FM the filter, and the feedback path adds subtle or destructive harmonic content. The powerful signal path is 100 analogue.

All of the controls for the Mopho x4 are logically laid out on the front panel, meaning you can easily access them without missing a beat. Every parameter is fully programmable and editable using these controls, and the sturdy full-sized pitch and mod wheels are freely assignable and sport smooth, reliable action.

The Poly Chain port allows you to expand the polyphony of the Mopho x4 by connecting it to other products, including the Mopho, Tetra and Prophet '08. Poly Chaining three Tetras with Mopho x4 creates a 16-voice analogue super synth.

Features/Specifications:

• 100 analogue signal path
• Two oscillators per voice capable of producing sawtooth, triangle, saw/triangle, and variable pulse width square waves, with hard sync
• Two sub-octave generators per voice (one octave below oscillator 1 and two octaves below oscillator 2)
• One classic Curtis low-pass filter per voice (switchable 2- or 4-pole) with audio rate modulation, self-oscillating in 4-pole mode
• Analogue VCAs
• Three envelope generators per voice (ADSR plus delay)
• Feedback loop per voice with programmable level and gain
• White noise generator
• 4 LFOs per voice
• Gated 16 x 4 step sequencer per voice (one sequence per program)
• Arpeggiator
• 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 four banks of 128 read-only factory programs and four banks of 128 user programs (1,024 total)

Inputs/Outputs:

• USB type B receptacle
• MIDI In, Out/Thru, and Poly Chain
• Left and Right audio outputs: 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