ASM Ashun Sound Machines Hydrasynth Deluxe Keyboard Synthesizer, 73-Key

Two Hydrasynths combine into a massive, dual-engine monster with 16 voices, polyphonic aftertouch, and a 4-octave ribbon controller -- the Hydrasynth Deluxe!

The ASM Hydrasynth Deluxe is the flagship Hydrasynth. Offering a dual-engine setup with a total of 16 voices plus an all new 73-note keybed featuring ASM's much sought after PolyTouch polyphonic aftertouch functionality, clearly in a class of its own. With essentially two Hydrasynths in one instrument, KeySplit and Dual voice mode patches with 8 independent voices each are possible. You also have separate balanced stereo audio outputs for each of the two parts. The easily accessible 4 octave ribbon controller adds for truly expressive playing. The Hydrasynth Deluxe of course offers CV/GATE I/O for interfacing to modular and other voltage controlled synths. There are a ton of potential for sound creation, using ASM's WaveScan oscillators together with the Mutator waveshaping section and user configurable filters. A plethora of LFO's and Envelope's plus Insert and Master Effects makes this a dream sound creation tool and quite possibly the ultimate synthesizer and controller combo for your rig.


- 16-voice polyphonic digital wave morphing synthesizer
- Single/Multi Dual/Keysplit voicing options
- POLYTOUCH Polyphonic Aftertouch, Note on/off velocity keyboard with 73 full-size keys
- MPE (MIDI Polyphonic Expression) compatibility
- Multi function ribbon controller (Modulation, Pitch bend, Theremin mode)
- Microtuning support via MIDI Tuning Standard files
- 1024 Single program locations with Category Search
- 640 Multi program locations with 1280 embedded program read more locations
WARNING: Cancer and Reproductive Harm -
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Type: Polyphonic Wave Morphing Synthesizer
Sound Engine Type(s): Wavescan
Analog/Digital: Digital
Number of Keys: 73
Type of Keys: ASM POLYTOUCH(TM) Polyphonic Aftertouch Keyboard, On/Off Velocity-sensitive, Semi-weighted
Other Controllers: Ribbon Controller, Pitch Bend, Mod Wheel
Polyphony: 16 voices (Full/Layer/Split)
Number of Presets: 1024 Single Programs, 1280 Programs in Multi (Upper/Lower)
Number of Multis: 640 Programs
Oscillators: 3 x Wavescan oscillators (219 Waveforms), 4 x Mutator wave shapers (8 Types), Noise (7 Types)
Mutators: 8 Types (FM-Lin, WaveStack, PW-Orig, PW-Squeeze, PW-ASM, Harmonic Sweep, Hard Sync, PhazDiff)
Noise: 7 Types (White, Pink, Brown, Red, Blue, Violet, Grey)
LFO: 5 per Voice (Sine, Triangle, Saw Up, Saw Down, Square, Pulse27%, Pulse13%, S&H, Noise, Random, Step), Tempo syncable, Semitone Lock
Envelopes: 5 per voice, Tempo syncable, Variable trigger sources
Filter Types: 1 Multimode Filter (16 types) and 1 Variable LP-BP/Notch-HP filter, series or parallel routing
Filters: Filter 1 (LP Ldr12, LP Ldr24, LP Fat12, LP Fat24, LP Gate, LP MS20, HP MS20, LP 3-Ler, BP 3-Ler, HP 3-Ler, LP Stn12, BP Stn12, HP Stn12, LP 1 Pole, LP 8 Pole, Vowel), Filter 2 (LP-BP-HP, LP-Notch-HP)
Effects: 9 Insert Effects, 5 Delays, 4 Reverbs
Effects Types: Chorus, Flanger, Rotary, Phaser, Lo-Fi, Tremolo, EQ, Compressor, Distortion, Delay, Reverb
Arpeggiator: 8 types (Up, Down, Up&Down, Up/Down, Order, Random, Chord, Phrase)
Other: Mod Matrix (32 slots), Macro Controllers (8), Favorites (32), Randomizer (Patch and Module), MPE Compatibility, Warm Mode, Microtuning
Audio Outputs: 4 x 1/4" Balanced (L/Mono Upper, R Upper, L Lower, R Lower)
Headphones: 1 x 1/4", 1 x 1/8", Separate volume control
USB: 1 x Type B
MIDI I/O: In/Out/Thru
Pedal Inputs: 2 x 1/4" (expression, sustain)
Other I/O: 2 x 1/8" Inputs (Mod 1, Mod2), 5 x 1/8" Outputs (CV, Gate, Mod1, Mod2, Clock)
Power Supply: 12V DC switchable power supply
Additional: Utility shelf
Height: 3.62" / 9.2cm
Width: 44.45" / 112.9cm
Depth: 13.62" / 34.6cm
Weight: 29.33lbs / 13.3kg
Dimensions and Weight in Packaging
Base Item
Shipping Weight: 43.25 lbs
Shipping Dimensions: 52 x 19 x 10 in
Manufacturer Part Number (MPN): HSLX

For support or warranty questions, please contact the manufacturer:


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