🎹 General / Physical
SpecValue
Keys
25 (normal size, no velocity) Roland+2www.gear4music.com+2
Dimensions (W × D × H)
472 × 283 × 70 mm www.gear4music.com+2Roland+2
Weight
2.4 kg (excluding AC adaptor) www.gear4music.com+2zZounds+2
Power / Current
AC adaptor, ~850 mA www.gear4music.com+2zZounds+2

🛠 Sound Engine / Voice Architecture
SubsystemDetails
Maximum polyphony
4 voices (in SYSTEM-1 mode) Roland CDN+3Roland+3Long & McQuade+3
Oscillators
Two main oscillators (OSC1 & OSC2), each with multiple waveform/color options Long & McQuade+4Roland+4Roland CDN+4
Additional sound sources
Sub-oscillator (−1 or −2 octave), noise generator (white / pink) Mitros Music+2Roland+2
Modulation / Routing
Cross modulation, ring modulation, oscillator sync Roland+3Mitros Music+3Roland CDN+3
Envelopes
ADSR envelopes for filter and amplifier sections Mitros Music+2Roland+2
LFOs
Multiple waveforms: SINE, TRIANGLE, SAW, SQUARE, Sample & Hold, Random Roland+4Mitros Music+4Roland+4

🔊 Filter / Effects / Mixer / Other Sound Processing
ComponentSpecification / Feature
Filter types
Low-pass (−12 dB / −24 dB) and High-pass (HP) Mitros Music+4Days Music+4Roland CDN+4
Filter controls
Cutoff, resonance, key follow etc. Roland CDN+3Mitros Music+3Roland+3
Effects
Delay, reverb, “crusher” (bit reduction / distortion) Days Music+2Roland+2
Scatter / Performance / Arpeggiator
“Scatter” jog dial with multiple types, arpeggiator (6 types, 6 steps) Roland CDN+4www.gear4music.com+4Roland+4
Mixer
Mix OSC1, OSC2, sub-oscillator, noise Roland+2Long & McQuade+2

🔌 Connectivity / GPIO / MIDI / I/O
Port / InterfaceDescription
Audio outputs
Stereo out: L / Mono, R (¼" jacks) www.gear4music.com+2Roland+2
Headphones
¼" stereo jack www.gear4music.com+1
Pedal (Hold)
¼" jack for sustain / hold pedal www.gear4music.com+1
Pedal (Control)
¼" TRS jack for expression / control pedal www.gear4music.com+1
MIDI
MIDI In, MIDI Out (Out supports soft Thru) Long & McQuade+3Sound on Sound+3Roland CDN+3
USB
USB Type B (serves as audio + MIDI interface) Sound on Sound+3zZounds+3Roland+3
Others
DC in (power), on/off switch rear panel www.gear4music.com+2Roland+2

🧠 Memory / Modes / Additional Features

• User Memory / Presets: 64 memories (8 banks × 8) in SYSTEM-1 mode Roland+1
• Plug-Out capability: the SYSTEM-1 can host (load) software/virtual versions of classic Roland synths (e.g. SH-101) so you can use those sounds without computer. Roland CDN+3Roland+3Roland+3
• Keyboard: does not have velocity or aftertouch; it can receive velocity via MIDI, but that is interpreted only as vibrato. Roland CDN+3Sound on Sound+3Roland+3
• MIDI Clock sync: can receive MIDI clock to sync LFO, arpeggiator, delay etc. Roland CDN+2Roland+2