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ASM (Ashun Sound Machines) Hydrasynth

8-Voice Wave Morphing Synthesizer

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ASM (Ashun Sound Machines) Hydrasynth
ASM (Ashun Sound Machines) Hydrasynth
1 200.00 street price

The Hydrasynth Keyboard offers the core Hydrasynth experience in a more compact 49-key format, making it an excellent choice for studio producers and performers who need professional synthesis capabilities without the full 73-key span. Despite its smaller footprint, it maintains the innovative Polytouch® polyphonic aftertouch technology that sets the Hydrasynth series apart, though with 8-voice polyphony focused on single-mode operation.

This model retains many of the Deluxe's premium features, including the ribbon controller with theremin mode and backlit pitch/modulation wheels for expressive performance. The control layout mirrors the Deluxe's organization with dedicated sections for arpeggiator, macro control, and performance filtering, ensuring familiar operation across the product line. The semi-weighted keybed with note-on velocity provides excellent playing feel while maintaining the unique polyphonic aftertouch capability.

Professional connectivity options remain comprehensive, with full CV/Gate integration capabilities, complete MIDI implementation including MPE support, and high-quality balanced audio outputs. The steel construction maintains the series' build quality standards while the reduced size makes it more suitable for mobile setups and smaller studios.

Technical Specifications

  • Engine: Complete Hydrasynth engine
  • Polyphony: 8 voices
  • Voice Management: No split/stack capability
  • Keyboard: 49-key semi-weighted with Polytouch® polyphonic aftertouch, note on velocity
  • Pedal Inputs: Sustain, Expression
  • CV/Gate Inputs: 2 modulation inputs (±5v, 0-10v, 0-5v, 0-1v)
  • CV/Gate Outputs:
    • Pitch out: 1v/octave (±5v, 0-10v), Hz to Volts (0-10v), 1.2v/octave
    • Keyboard gate out
    • Mod 1/2 outs (±5v, 0-10v, 0-5v, 0-1v)
    • Gates: S-trig and V-trig (3v, 5v, 10v)
  • Clock Out: 1 PPS, 2 PPQ, 24 PPQ, 48 PPQ at 3v, 5v, 10v
  • MIDI: USB MIDI, DIN MIDI In/Out/Thru, MPE support, polychaining
  • Controls:
    • Master Volume
    • 8 arpeggiator knobs
    • 8 macro knobs and buttons
    • 5 performance filter knobs and 2 buttons
    • Ribbon controller with theremin mode
    • Backlit pitch/mod wheels
  • Audio Outputs: 1/4" balanced L/R, 1/8" and 1/4" stereo headphone (shared volume)
  • Memory: 1,024 patches (8 banks of 128)
  • Power: 12v DC center positive (1 amp)
  • Construction: Steel top/bottom, plastic capped buttons
  • Dimensions: 80 x 35 x 10.3 cm (31.5" x 13.8" x 4.1")
  • Weight: 10 kg (22.05 lbs)

Country of origin / production: China

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Usage area
Synthesizer 
Performance Synthesizer 
Usage Design/ Form Factor
With Keys 
Archetype
Digital (D) 
Polyphony
Voices8
Tone Generator / Sound Synthesis
Synthesis Method Digital Subtractive
Synthesis Method Wavetable
Oscillators overall24
Oscillator Type Digital
Oscillators per voice3
Programs/ Voices/ Timbres
Patches640
Filter
High-pass Filter (HPF) 
Low-pass Filter (LPF) 
Band-pass Filter (BPF) 
State-Variable Filter (HPF+LPF+BPF) 
Multimode 
Envelope Generator (EG)
Assignable5
AHDSR 
HADSR 
Modulation
Modulation Matrix32-Slot Mod Matrix
LFO: LFO per voice5
LFO Waveforms
Sine 
Square 
Triangle 
Up Saw 
Down Saw 
Sample&Hold 
Effects
Reverb 
Chorus 
Flanger 
Compressor 
Delay 
Phaser 
Rotary Speaker 
Tremolo 
Equalizer
Parametric 
Arpegiator/ Portamento
Arpegiator 
MIDI in/ out
IN 
OUT 
THRU 
Keys
Type Synth Action
Aftertouch 
Size4
Number of Keys49
Display
Display type OLED
Display count2
Built-in controllers
Wheel's backlit 
Pitch Bend Wheel 
Modulation Wheel 
Ribbon Controller1
Jog dial 
External controllers
Sustain foot pedal 
Expression foot pedal 
Gate out1
Audio out
Stereo 
All voices mixed in one output 
Analogue: 1/4" (6.35mm)2
Analogue: 1/4" (6.35mm) headphones preamplified1
Analogue: 1/8" (3.5mm) headphones preamplified1
Computer Interfaces
USB USB PC Link
USB MIDI through USB
Power
Voltage 12V
Power Supply External
Dimensions
Height103 mm
Width800 mm
Depth346 mm
Weight10 kg
Case/ body
Metal 
Color
Black 
Production start2019
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