ASM Hydrasynth Keyboard
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Essential Information About the HYDRASYNTH Keyboard Synthesizer
Essential Information About the HYDRASYNTH Keyboard Synthesizer
- 49-key Polytouch keyboard with polyphonic aftertouch and 4-octave ribbon controller for exceptional expressiveness.
- Ultra-flexible hybrid wavetable/virtual-analog engine: 3 oscillators, 2 wave mutators, 2 filters in series/parallel.
- Deep and intuitive modulation: 5 DAHDSR envelopes, 5 advanced LFOs, extended modulation matrix.
- Creative arpeggiator, Pre/Post effects, MIDI/USB and CV/Gate connectivity for studio and stage.
Manufacturer Information
ASM
https://www.ashunsoundmachines.com
info@ashunsoundmachines.com
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Sonic Sales GmbH
Email: info@sonic-sales.de
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The Modern Pillar of the ASM Range
Designed to revisit wavetable aesthetics with a decidedly modern approach, the HYDRASYNTH Keyboard stands as the versatile reference of the ASM series. Its direct interface, high-resolution encoders, and smart shortcuts offer a fast workflow, ideal for creating, editing, and performing without endless menus.
For Demanding Sound Designers, Keyboardists, and Producers
Whether you produce electro, techno, ambient, synthwave, pop, or film music, this synthesizer meets both the needs of precise sound design and the demands of live performance. Ambitious beginners and experts alike will appreciate its immediate playability, expressive polyphonic aftertouch, and full connectivity in modular studio setups.
Technical specifications
| Arpeggiator | Yes | Vocoder | No |
| Sampler | No | Category | Hybrid Synth |
| Max polyphony | 8 | Number of keys | 49 |
| Velocity sensitive | Yes | Touch | Semi-weighted |
| MPE compatible | Yes | Key format | big |
| Number of oscillators | 3 | MIDI I/O | IN, OUT, THRU (DIN), MIDI PAR USB |
| Semi-modular | No | Inputs | USB, Midi, CV in, Gate in, Sync In |
| Synthesis type | Wavetables, Digital, Subtractive | Outputs | USB, Midi, CV out, Gate out |
| Keyboard | 49 velocity-sensitive keys with aftertouch | Filter 2 | SEM-style, 12 dB/oct, with continuous high-pass, band-pass and low-pass sweep |
| Aftertouch | polyphonic (Polytouch) | Modulation matrix | yes |
| Ribbon controller | 4 octaves (67 cm), with "Theremin" mode | Envelopes | 5, DAHDSR |
| Encoders | 8, high-resolution, with LED rings | LFO | 5, with delay, fade in, 3 trigger modes, smoothing, start phase and one-shot mode |
| Polyphony and timbrality | 8 voices, monotimbral | Arpeggiator range and parameter (Firmware 2.0) | 6 octaves and Step Offset |
| Oscillators | 3, with 219 single-cycle waveforms | Memory | 5 banks of 128 patches each, including 256 factory patches |
| WaveScan parameters | modulation via wavetables | Memory expansion | 8 banks on 49-key/Desktop/Explorer models via Firmware 2.0 |
| Morphing | waveforms | Effects | Pre/Post |
| Wavelist mode | mixing of up to 8 wavetables | Global effects bypass | yes (Firmware 2.0) |
| User wavelists | 8 per oscillator | CV-Gate connectivity | inputs and outputs, support for all standard CV/Gate formats |
| Mixer | with noise generator and ring modulator | Clock connectivity | input and output |
| Filters | 2, configurable in series or in parallel | USB port | USB MIDI In/Out |
| Filter 1 | 11 models (12/24 dB ladder, vintage ladder, HP, LP, Vocal, etc.) | MIDI connectivity | In/Out/Thru |
Customer reviews
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I don't like the patches very much it's a shame
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Questions frequently asked
Is the ASM Hydrasynth Keyboard MPE compatible?
MPE compatibility is built-in, featuring a 49-key semi-weighted keyboard sensitive to velocity and equipped with polyphonic aftertouch.
What polyphony and sound engine does this synth offer?
The digital engine offers 8-voice polyphony, 3 oscillators, and 219 waveforms. Morphing, WaveScan, Wavelist, and wave mutators allow transformation of sources before passing through two configurable filters.
What CV and MIDI connectivity is available?
Connections include MIDI DIN In, Out, and Thru, as well as USB MIDI. CV, Gate, and Sync In inputs complement CV and Gate outputs for integration into a modular environment.
Does the arpeggiator have advanced functions?
The arpeggiator includes Ratchet, Chance, Gate, and Swing, with an extended range of 6 octaves via firmware 2.0.
What does firmware 2.0 bring to the Hydrasynth Keyboard?
Up to 8 memory banks are available on this 49-key format. The update notably adds Voice Modulator, oscillator bit reducer, quantizers for LFO and envelopes, and global effects bypass. Options such as Sostenuto, glissando within glide, and arpeggiator Step Offset are also added.



