ASM Hydrasynth Explorer
The Hydrasynth Explorer is an enthusiast-tier 8-voice, 37-key digital synth known for deep wave-morphing synthesis and POLYTOUCH polyphonic aftertouch, all in a battery-powered, portable box. It's a strong fit for sound designers who want expressive per-note control and aren't tied to a power outlet. Analog-warmth purists and players who want full-size keys should look elsewhere, since this is a compact digital instrument.
Scores
BreakdownHideOverall69±6Caliber-forward blend — tier caliber + within-tier price rank 30%, value 25%, confidence 20%, compatibility 15%, upgrade path 10% — renormalized over applicable dimensions; excluded here: compatibility (no ecosystem dimension).
Scores
BreakdownHideCaliber-forward blend — tier caliber + within-tier price rank 30%, value 25%, confidence 20%, compatibility 15%, upgrade path 10% — renormalized over applicable dimensions; excluded here: compatibility (no ecosystem dimension).
The ± band on the overall score reflects sourcing confidence — wider when fewer specs are verified.
How each score is computed: our scoring methodology.
Specifications
| Spec | Value | Verification |
|---|---|---|
| synthesis | digitalSourced | Sourced |
| voices | 8Sourced | Sourced |
| keys | 37Sourced | Sourced |
3/3 detail specs sourced. Amber rows are flagged for verification — we show them as reported, not confirmed.
Verdict
Best for
- Deep wave-morphing digital synthesis with POLYTOUCH polyphonic aftertouch in a battery-powered box
Who should skip this
- Analog-warmth purists; players wanting full-size keys
Where to buy
List price $649
Prices are a guide and can change — confirm the current price on the retailer's site before buying.
Prices last checked Jul 16, 2026 — retailer prices change often, so click through for the current price.
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Compatibility
No platform-specific compatibility requirements — this works in any standard music production setup.
Upgrade path
Outgrow it and the Korg opsix mk II is the natural next step up in synths. See it →