Sequential Mopho x4
Mopho x4 is a four-voice polyphonic analog synthesizer with a 44-note semi-weighted keyboard, built on the voice design of the Mopho. It suits players who want analog polyphony in a portable format. It is no longer in production.
- 4-voice polyphonic, 100% analog signal path
- 2 oscillators and 2 sub-octave generators per voice
- Switchable 2- or 4-pole Curtis low-pass filter
- 44-note semi-weighted keyboard, velocity and aftertouch
- 1,024 programs; USB, MIDI with Poly Chain
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Mopho x4 is a polyphonic analog synthesizer from Dave Smith Instruments (Sequential) that extends the single-voice Mopho design to four voices. Each voice has two analog oscillators, two sub-octave generators, a switchable 2- or 4-pole Curtis low-pass filter, analog VCAs, three envelope generators, four LFOs, a feedback loop and a noise source. The signal path is fully analog.
Every parameter can be edited from the front panel. Sequencing and performance tools include a 16 x 4 step sequencer per voice, an arpeggiator, and separate glide rates for each oscillator. The 44-note keyboard (F to C) is semi-weighted with velocity and aftertouch, and the pitch and mod wheels are full-sized. Memory holds 1,024 programs: four banks of 128 factory sounds and four banks of 128 user sounds.
For connections it has USB type B, MIDI In, Out/Thru and Poly Chain, stereo 1/4 inch outputs, a headphone output, and inputs for a sustain pedal and an expression pedal or control voltage. A software editor for Mac OS and Windows is available as a free download.
Video
Parametre
- Značka
- Sequential
- Model
- Mopho x4
- Kategória
- Syntezátory a klávesy › Syntezátory
Audio
- Signal path
- 100% analog
- Polyphony
- 4 voices
- Oscillators
- Two per voice: sawtooth, triangle, saw/triangle, variable pulse width square, with hard sync
- Sub-octave generators
- Two per voice (one octave below oscillator 1, two octaves below oscillator 2)
- Filter
- Curtis low-pass per voice, switchable 2- or 4-pole, audio rate modulation, self-oscillating in 4-pole mode
- VCAs
- Analog
- Envelope generators
- Three per voice (ADSR plus delay)
- LFOs
- 4 per voice
- Feedback loop
- One per voice, programmable level and gain
- Noise
- White noise generator
- Glide
- Portamento, separate rates per oscillator
Sequencing
- Sequencer
- Gated 16 x 4 step per voice (one sequence per program)
- Arpeggiator
- Yes
Keyboard and Controls
- Keyboard
- 44 notes (F to C), semi-weighted, full-sized, velocity and aftertouch
- Wheels
- Full-sized modulation wheel and spring-loaded pitch wheel
- Programs
- 4 banks of 128 factory (read-only) and 4 banks of 128 user, 1,024 total
Inputs
- Sustain pedal input
- 1/4″ phone jack, normally on or off momentary footswitch
- Expression pedal / CV input
- 1/4″ TRS phone jack, 3.3 VDC max.
Outputs
- Audio outputs
- Left and Right, 1/4″ phone jack (unbalanced)
- Headphone output
- 1/4″ TRS stereo phone jack
Connectivity
- USB
- USB type B
- MIDI
- In, Out/Thru, and Poly Chain
Physical
- Dimensions
- Approx. 25.2″ L x 11.1″ W x 3.6″ H (64 cm x 28.2 cm x 9.1 cm)
- Weight
- 13.5 lbs
In the box
- Power supply
- For 100V–240V AC operation
- Documentation
- Operation manual
- Software editor
- Free for Mac OS and Windows, available from SoundTower