Gamechanger Audio Motor Synth MKII Electromechanical Desktop Synthesizer

Those spinning discs aren't for show! This is an electromechanical Motor Synth that generates optical waveforms and includes analog filters and sequencing.

MOTOR Synth MKII is the second iteration of Gamechanger Audio's groundbreaking idea of electromechanical (Motor) synthesis. The MOTOR Synth is based on a unique motor oscillator engine -- it is a system of eight electro-motors that are able to instantly and precisely change their rotation speed in order to produce musical notes.

Gamechanger Audio - Motor Synth MKII Demo:

Because of the distinct way the motors create wave shapes, MOTOR Synth's sound is certainly in a category of its own. However, the comprehensive sound-shaping features developed by the engineers at Gamechanger Audio let you recreate classic synth sounds and even real instruments.

The MOTOR Synth is based on a unique Motor oscillator engine -- it is a system of electro-motors that are able to instantly and precisely change their rotation speed in order to produce musical notes. These Motor Oscillators can produce four distinct waveforms -- Sine, Saw, Square and the so-called M waveform.

The M waveform is produced by a set of electromagnetic pickups that are placed next to each Motor's rotating inner coils. As the coils rotate the Motor's coils create electromagnetic fluctuations that can be amplified to produce a unique Motor waveform.

The Sine, Saw and Square waveforms are produced by a set of specially designed Optical discs that are mounted to each Motor's shaft. Each Motor Disc has three "tracks" engraved onto its reflective surface. These "tracks" are designed as circular read more optical representation of the Sine Saw and Square waveforms. Each reflective "track" is paired with a separate infra-red laser and sensor that picks up the reflected beam. As the disc rotates and brings the differently shaded areas in circular motion, the infra-red reflectivity sensor begins outputting a so-called "Optical Waveform" -- a proprietary technology that we developed specifically for the MOTOR Synth.

The MOTOR Synth offers two separate MOTOR Voices with 4 Electromotor oscillators each - both voices can operate in mono, unison or in four-note polyphonic mode.
Both MOTOR Voices are equipped with a separate set of controls for adjusting VOLUME, SCALE, WAVESHAPE, individual AMP ENVELOPE engines for each musical note, as well as very detailed control over a deep and versatile PORTAMENTO / PITCH MOD section (called "Acceleration / Brake").

Both Motor voices are equipped with a separate analog multimode filter section with adjustable DRIVE, CUTOFF, RESONANCE, ENVELOPE SHAPE & AMOUNT and FILTER TYPE.

There are four analog filter types - 24 dB LP, 12 dB BP, 12 dB HP, 12 dB AP (All-Pass). The new analog filter circuits have increased headroom, improved envelope response speed and a very precise analog Keytrack mode with adjustable depth, direction and filter "glide".

The MOTOR Synth MK II features an additional third voice - a high quality digital engine that can be used either independently, or to augment the raw sound of the MOTOR Voices. The Digital engine (DCO) can be used to produce various classic waveforms (with waveshaping), or as a noise generator.

The DCO is also equipped with a separate, fully controllable AMP ENVELOPE, PORTAMENTO section, and its own Digital multimode Filter designed to reproduce the 4 analog filter modes.

The MOTOR Synth has a single output jack that can be configured either as mono, or as a stereo output - thus routing the synth's two motor voices into separate channels. The Digital voice can also be routed to the V1 or V2 outputs, or to both.

The MOTOR Synth MKII also features an extremely powerful modulation section that includes 3 individual LFOs with adjustable positive and negative depth controls. Each LFO can be easily assigned to almost any knob or encoder value on two independent modulation slots A and B.

There are five independent modulation waveforms available for each LFO - each with a detailed waveshaping engine.

The MOTOR Synth features a dedicated center indent potentiometer for creating amplitude cross-modulation with either Voice 1 or Voice 2. The Detune / Drift knob gives you two kinds of oscillator detune effects.

Powerful arpeggiator engine offers detailed control over a large variety of parameters, including note accent, pattern shift, note repeat and more.
Multiple independent motion Record lanes assignable to all sound parameters.
A built-in monophonic sequencer engine with controls for micro-timing, probability, ratchets, pattern length, pattern saving and chaining and much more.

Non-velocity sensitive 8 key keyboard with 4 pitch shift encoders - this is a small but powerful note input system with a lot of performance tricks up its sleeve.

Alternatively, the MOTOR Synth is fully MIDI and CV compatible and can be used with all of your favorite keyboards (incl. poly-aftertouch), controllers and sequencers.


- Eight electromotor oscillator system with custom-built brushless DC motors
- Two fully independent MOTOR Voices with Separate Amp Envelope, Pitch Envelope and Analog multi-mode Filters
- Additional third DIGITAL VOICE (DCO) with full functionality
- Powerful Modulation section with assignable mod destinations
- Built-in performance interface with ARP, SEQUENCER and MOTION REC Engines
- MIDI & CV control
- Lower mechanical noise (due to custom motor engine, soft-mounting, sound panels)
- Upgraded filter and VCA section
- Expanded controls for portamento, detune and cross-mod
- 3 fully assignable LFOs
- Added digital voice (DCO)
- Improved sequencer, arp, motion rec
- Improved User Interface
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-Sound Engine: Electro-Mechanical with additional Digital Voice
-Signal Path: All Analog
-Polyphony: 4 notes, 3 voices per note
-Analog Filter: multimode VCF 24 dB LP, 12 dB BP, 12 dB HP, 12 dB AP
-Digital Filter: multimode 24 dB LP, 12 dB BP, 12 dB HP, 12 dB AP
-Presets & Sequences: 128 Preset banks with 128 Patches each, 64 projects/sequences
-Input Type: 1/4" Unbalanced TS
-Input Impedance: 500kOhm
-Max Input: 6Vpp (+9dBu
-Output Type: 1/4" Unbalanced TRS (Stereo)
-Output Impedance: 220kOhm
-Max Output Level: 10Vpp (+13dBu)
-Frequency Response: 5Hz to 22kHz
-Display: OLED 128x64
-Connectors: IN, OUT, Headphone Out, V1 send/ret, V2 send/ret, 3 CV triggers, 3 CV inputs, DC input, DIN5 MIDI IN, DIN5 MIDI OUT, USB (MIDI, FW updates, uSD card storage)
-Power Supply: IS INCLUDED, Center positive 3.0 x 6.5 mm barrel plug
-Power Requirements: 5A, 24VDC
-Mean Power Consumption: 20W
-Product Dimensions: 8.3 IN / 21 CM (L) x 11.4 IN / 29 CM (W) x 2.17 IN / 5.5 CM (H)
-Product Height with knobs: 2.96 IN / 7.5 CM
-Product Weight: 7.17 LBS / 3.25 KG
-Shipping Dimensions: 11 IN / 28 CM (L) x 19 IN / 48 CM (W) x 4 IN / 10 CM (H)
-Shipping Weight: 10.8 LBS / 4.9 KG
Dimensions and Weight in Packaging
Base Item
Shipping Weight: 10.35 lbs
Shipping Dimensions: 20 x 11 x 4 in
Manufacturer Part Number (MPN): GCAMS

For support or warranty questions, please contact the manufacturer:
Phone: +1(202) 407-9741


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