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MSW-820 is a 2 oscillator based analogue monosynth with an advanced 16 mode voltage controlled filter, 2 envelope generators, digital LFO with sync and trigger functions, digital noise source with 8 flavors, MIDI (TRS or USB), all in a compact desktop or euro format.

Specifications:

VCOs

• AS3340 Based, Pulse and Sawtooth Waveforms
• ENV Modulation (OSC1, -5 to 5) and LFO Modulation (OSC2, 0-10)
• Range: 16'/8'/4', 7 Octaves
• Pulse Width Modulation: 50% to Min
• PWM Mode: ENV/Manual/LFO Modulation
• Master and OSC2 (offset) Tune Control
• Pulse/Sawtooth Mixer control per Oscillator
• 2 Hard Sync Modes: O2 Track Pitch or O2 Do not track pitch
• 2 Reset Modes: Reset O1 on gate or Reset O1 and O2 on gate

Sound Mixer 

• External Input (pre filter)OSC 1 Level
• OSC 2 Level 
• Sub Osc Level tracking OSC1 with 1, 2, and 2 PWM Octave Settings
• Noise Level with 8 Noise Models:
  White, Pink, Hex Invert, Crackle, Orgone (pitched), Sonar (pitched)

VCF

• AS3109 Base16 Modes.  Low Pass, High Pass, Band Pass, Allpass (aka Phase)
• Cutoff Frequency: 10Hz to 20kHz
• Resonance: 0- Self Oscillation
• CV Follow: 0-100%
• "This" knob (Audio rate filter modulation from OSC1's triangle output)
• Envelope Modulation via Attenuverter (-5 to 5)
• LFO Modulation via Attenuverter (-5 to 5)
• Pitch Modulation via Attenuverter (-5 to 5)
• External CV Modulation via Attenuverter (-5 to 5)

LFO

• Rate: 0.1 Hz to 22 Hz8 Shapes with crossfade between shapes:
  Sine, Square, Ramp, Tri, Saw, Expo Decay, Random, Smoothed Random
• 2 Reset Modes.  Reset on Gate and Reset on Gate with Phase Control (via Fade knob)
• Fade Control: LFO Delay (Reset off, Reset Mode II) or LFO Phase (Reset Mode II)
• Bipolar Rate indicator 

Envelopes 

• Attack time: 1.5 ms to 2 s
• Decay time: 2 ms to 10 s
• Sustain Level: 0-100%
• Release Time: 2 ms to 10 s
• Modulation Envelope is hardwired to Modulation bus
• VCA Envelope is hardwired to VCA

Portamento

• Main Pitch (Master Tune) slide

Accent

• Two Modes: Accent on VCF, Accent on VCF and VCA
• Accent level controlled via EXT mod slider

VCA/Output Mixer/VCA 2 

• Synth VCA Control
• External Input (Thru, VCA2 via MOD Env, VCA 2 via EXT CV)

Inputs/Outputs 

• MIDI IN. TRS 3.5mm PSIMIDI (either A or B)
• Clock IN to Control LFO Rate**
• Gate IN. 5-10V*
• V/Oct IN*
• Ext CV (VCF Modulation OR Accent Gate)
• CV2 (VCA2 CV Input)
• Audio IN
• Synth/Mix OUT
• USB C IN/OUT.  5V Power 200 mA.  DC Adapter included.  Also serves as USB MIDI 

*Analog inputs override MIDI

**Overrides MIDI clock, switches LFO to clocked mode

MIDI Control/ MIDI Features

• LFO Shape CC# 14
• LFO Rate (divisor when clocked) CC# 20
• LFO Reset to phase CC# 22
• LFO sample and hold/release (switch @ 64) CC# 23
• Pitch bend up range* CC# 3
• Pitch bend down range (use up range if zero)* CC# 86
• Filter freq (via ExtCv slider) CC# 74
• Noise select* CC# 30
• Noise click mode  (switch @ 64) CC# 89
• Porta time* CC# 5
• Porta on/off (switch @ 64)** CC# 65
• Porta “glide mode” (switch @ 64) CC# 85
• Mod wheel CC# 1
• Mod depth(LFO to Pitch amount in semitones)* ??
• Velocity to filter mod amount* ??

*Setting is saved

**saved, but only activated when MIDI is detected

Included

Universal wall adapter, USB A to USB C cable (power and Data), 1.5m TRS MIDI Cable (type A)

Power

5V DC, 200 mA USB C (Adapter Included)

Euro Power: +12V 100 mA, -12V 80 mA

Dimensions

220x120x50 900g

Euro: 46HP