SKU: 37462399883

Ashun Sound Machines HSKB 49-key Polytouch Hydrasynth Synthesizer

Sale price$944.55 Regular price$1049.50
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Description

Ashun Sound Machines HSKB 49-key Polytouch Hydrasynth SynthesizerOffering 8 voice polyphony, "Mutator" waveshaping, and a 32 slot modulation matrix, the ASM HydrasynthKeyboard is truly a next generation virtual analog synthesizer for modern music producers. Rivaling the sonic capabilities of many popular software synthesizer plug ins, each voice features three WaveScan oscillators offering 219 different waveforms, with four Mutators total for extensive waveshaping. There's a ton of potential for creating nuanced,

Offering 8-voice polyphony, "Mutator" waveshaping, and a 32-slot modulation matrix, the ASM HydrasynthKeyboard is truly a next-generation virtual analog synthesizer for modern music producers.

Rivaling the sonic capabilities of many popular software synthesizer plug-ins, each voice features three WaveScan oscillators offering 219 different waveforms, with four Mutators total for extensive waveshaping. There's a ton of potential for creating nuanced, nonlinear sounds - the five ADSR envelope generators offer delay and hold and can have either linear or exponential curves between stages, and the five LFOs offer a total of 11 waveshapes plus delay, fade in, and smoothing. Factor in the 49-note keybed, customizable PolyTouch response, expressive ribbon controller, and CV/Gate connectivity, and the ASM Hydrasynth could be the master controller your synthesizer rig is asking for.

Extensive modulation capabilities
With its 32-slot modulation matrix, Hydrasynth empowers you to create incredibly nuanced and expressive sounds. Synthesists are particularly impressed with its envelope generators (five per voice), which offer delay and hold in addition to ADSR stages. Each stage of the envelope can sweep through exponential and logarithmic curves, which offers big creative potential for long, evolving modulations.

Like most of the functions on Hydrasynth, envelopes can be locked to BPM for tempo-synced modulations. Combined with the looping function, you can use the envelopes as LFOs with interesting waveshapes. And speaking of LFOs, Hydrasynth offers five LFOs per voice with 11 total waveshapes. That includes the 8-step LFO, which allows you to create your own custom waveshape.

Amazing performance potential with PolyTouch and ribbon controller
Whether you're performing or recording, Hydratouch delivers an incredibly expressive playing experience, especially when you dig into its PolyTouch capabilities. PolyTouch is a new method of polyphonic aftertouch sensing. You have full control over aftertouch curves, offsets, and release times, giving you big creative potential when using aftertouch to manipulate your sounds. A built-in ribbon controller expands your performance options further - it can control pitch bend or modulation amount, and a Theremin mode allows you to play melodies on the ribbon controller against whatever you're playing on the keyboard.

Deep synthesis with an intuitive interface
While the Hydrasynth engine is remarkably powerful, it's relatively simple to find and tweak the parameters you're looking for. On the front panel, you'll find a graphic representation of the audio path, with buttons to select each individual section (individual oscillators, mixer, effects, and so on). Selecting a section brings its associated parameters to the display, with eight encoders ready to tweak. In other words, every section of this synth can be accessed with a button press, no menu diving required.

Advanced real-time control via eight macro controls
One of the most popular aspects of software synthesizers is the ability to control multiple parameters simultaneously via macro controls, and the ASM Hydrasynth gives you that creative power in hardware form. You can customize its eight macro controls to tweak up to eight destinations simultaneously. And with a total of 170 modulation destinations to explore, you can easily use the macro controls to warp between completely distinct sound variations on the fly.

Features:

  • 49-note virtual analog synthesizer with polyphonic aftertouch
  • Combines multiple synthesis methods like wavetables, linear FM, WavePWM, subtractive, and more
  • 8-voice polyphony, with 3 x oscillators per voice and 4 x Mutator waveshapers total
  • 7 types of Mutator waveshapers - FM-Lin, WaveStack, PW-Orig, PW-Squeeze, PW-ASM, Harmonic Sweep, and Hard sync
  • WaveScan oscillators offer a total of 219 waveforms
  • Dual filters - 1 x multimode (11 types) and 1 x variable LPF-BPF-HPF, with series/parallel routing options
  • 5 envelope generators (ADSR) per voice with delay, hold, and looping abilities
  • Envelopes can be locked to BPM (MIDI Clock) for tempo-synced modulation
  • 5 LFOs per voice, with 11 waveforms - Sine, Triangle, Saw Up, Saw Down, Square, Pulse27%, Pulse13%, S&H, Noise, Random, and Step
  • Powerful arpeggiator with 8 modes, including chord and phrase modes
  • Full-length ribbon controller with 3 modes: Pitch Bend, Mod Only, and Theremin
  • 32-slot Mod Matrix provides ample options for manipulating your sounds
  • CV/Gate connectivity for integrating with modular/semi-modular synthesizers
  • 8 insert effects, with Chorus, Flanger, Rotary, Phaser, Lo-Fi, Tremolo, EQ, Compressor, Delay (5 types), and Reverb (4 types)
  • 8 Macro controls allow you to tweak multiple parameters simultaneously

Specs:

  • Type: Keyboard Synth
  • Sound Engine Type(s): Wave Morphing Synthesis (wavetable, linear FM, wave PWM, subtractive) Analog/Digital: Digital
  • Number of Keys: 49
  • Type of Keys: Synth, Full-size
  • Aftertouch: Polyphonic Aftertouch
  • Other Controllers: Pitchbend, Mod wheel, Multi-function Ribbon Strip
  • Polyphony: 8 Notes
  • Presets: 640 Program Locations (5 banks x 128 Patch Memories)
  • Oscillators: 3 x Wavescan Oscillators (219 waveforms), 4 x Mutators Wave Shapers
  • LFO: 5 x LFO, Tempo syncable
  • Filter: 1 x Multimode Filter (11 types), 1 x Variable Filter (lowpass, bandpass, highpass)
  • Envelope Generator: 5 x ADSR ; Delay, Hold, Looping
  • Effects Types: 4 x Reverbs, 5 x Delay, Chorus, Flanger, Rotary, Phaser, Lo-Fi, Tremolo, EQ, Compressor
  • Arpeggiator: 8 x Arpeggiators
  • Audio Outputs: 2 x 1/4" (L/mono, R)
  • Headphones: 1 x 1/4", 1 x 1/8"
  • USB: 1 x Type B
  • MIDI I/O: In/Out/Thru/USB
  • Pedal Inputs: 1 x 1/4" (sustain), 1 x 1/4" (expression)
  • Other I/O: 2 x Mod in, Pitch out, Gate out, 2 x Mod out, Clock out
  • Power Supply: 12V DC power supply (included)
  • Height: 4.53"
  • Width: 31.50"
  • Depth: 13.63"

Hydrasynth is the debut eight-voice polyphonic wave morphing synthesizer from Ashun Sound Machines, offering three oscillators per voice and an extremely open ended modulation system.


Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 37462399883

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Juanita
Carnegie, US
★★★★★ 4
Comfortable and Supportive, but Adjust the Filling
Color: White-cooling Basic, Size: Queen(Pack of 2), Color: White-cooling Basic, Size: Queen(Pack of 2)
I’m very happy with this pillow. The size is big and it feels soft while still providing good support, perfect for midnight scrolling on TikTok. One thing to keep in mind is that it can feel a little too tall if you use all of the filling that comes with it. The good news is that you can easily adjust the amount of filling to find the height that works best for your sleeping position. Once I customized it, it was much more comfortable. Overall, great quality, comfortable, and worth the purchase.
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Reviewed in the United States on June 3, 2026
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Love Leigh Angel
Los Angeles, US
★★★★★ 5
BEST PILLOWS EVER!!!
Color: White-cooling Basic, Size: Queen(Pack of 2)
I am very picky with my pillows because I have a bad neck and I can never seem to find a good pillow. But I tried this pillow because it had everything I was looking for and the price was great! You get two of them and they are absolutely awesome.! normally I would need to lay on two pillows to try and get comfortable but with these pillows I just lay on one and I wake up with no neck pain. They really have a nice cooling effect. They actually puff up immediately after opening them. All you have to do is just shake them up and the pillow just puffs straight up.. It comes with extra cushioning if you want it to make it firmer and if you don’t want it as firm as it is, you can actually take some out. It really is such a beautiful pillow. It’s perfect in every way to me being such a picky pillow person. You just lay your head down on it and it forms around your neck and your head and when you get up, it goes right back to its normal form. It doesn’t get flat and I love it. I completely recommend this to anyone who is a person who has a hard time finding a really good pillow.
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Reviewed in the United States on April 12, 2026
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$@[)E
Los Angeles, US
★★★★★ 5
Top of the line, best pillows Ive ever had
Color: White-cooling Basic, Size: Queen(Pack of 2)
These pillows are top of the line! I bought them in 2024 and they are still fluffy. When they lose a little fluff, you just punch em around a little bit and voila, like new again. They have kept their shape cery well and do great for cooling. I haven't had to add more filling yet either. I just laid my head on one and thought, I need to do a review cause everytime i lay on these pillows its like clouds. My head is heavy and this is relief :-D
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Reviewed in the United States on May 21, 2026
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Chelsea H.
Battle Creek, US
★★★★★ 3
Weird smell
Color: White-cooling Basic, Size: Queen(Pack of 2)
The pillows are great for someone looking for something cool and comfortable. We loved them so much that we bought a second pair. However, we were seriously disappointed with the odor of our last purchase. They give off a strong and indescribable chemical/burning plastic smell so nauseating that it’s difficult to sleep with. We’re hoping this issue will resolve with a couple more washes of the pillow cases, but am worried the source is the stuffing itself.
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Reviewed in the United States on May 28, 2026
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Ken Hill
Natrona Heights, US
★★★★★ 5
helped treat my sore neck
Color: White-cooling Basic, Size: Camping Pillow(Pack of 1)
This pillow — after dialing in the right amount of shredded foam — has greatly helped my sore neck. Initially, I had to remove some foam. Then I gradually added foam until it reached optimum comfort and support. It is also CPAP-friendly — especially when I position my head near the pillow's edge. (I am a left-side sleeper.) I like the travel size because I use a bulky hugging pillow to ease stress on my shoulder and elbow. That makes my side of the bed feel cramped if using a larger head pillow. A smaller pillow is easy to flip end-to-end in the middle of the night. I have spent lots of money on pillows over the years, but this is the best I've ever had for relieving [1] neck pain and [2] CPAP mask seal problems. Very comfortable, supportive, and affordable. I did not notice any unpleasant smell — and I am usually sensitive to that kind of thing. Would highly recommend.
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Reviewed in the United States on May 7, 2026

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