# Sequential Prophet-6 vs ASM Hydrasynth Keyboard: specs and price compared

A sourced, side-by-side comparison of the Sequential Prophet-6 (Sequential) and ASM Hydrasynth Keyboard (ASM (Ashun Sound Machines)) among synthesizers. ASM Hydrasynth Keyboard is the cheaper of the two at $1399.

## Side by side

| Spec | Sequential Prophet-6 | ASM Hydrasynth Keyboard |
| --- | --- | --- |
| US price | $3499.99 | $1399 |
| Brand | Sequential | ASM (Ashun Sound Machines) |
| Synthesis type | analog | wavetable |
| Polyphony voices | 6 | 8 |
| Oscillators per voice | 2 | 3 |
| Key count | 49 | 49 |
| Keybed type | semi-weighted | semi-weighted |
| Multitimbral parts | — | — |
| Patch memory | 500 | 1024 |
| Sequencer steps | 64 | — |
| Arpeggiator | Yes | Yes |
| Onboard effects | Yes | Yes |
| Cv gate io | No | Yes |
| Weight (kg) | 9.5 | 10 |

## Key differences

- Synthesis type: Sequential Prophet-6 analog vs ASM Hydrasynth Keyboard wavetable
- Polyphony voices: Sequential Prophet-6 6 vs ASM Hydrasynth Keyboard 8
- Oscillators per voice: Sequential Prophet-6 2 vs ASM Hydrasynth Keyboard 3
- Patch memory: Sequential Prophet-6 500 vs ASM Hydrasynth Keyboard 1024
- Cv gate io: Sequential Prophet-6 No vs ASM Hydrasynth Keyboard Yes
- Weight (kg): Sequential Prophet-6 9.5 vs ASM Hydrasynth Keyboard 10

## Sources

- Sequential Prophet-6: https://sequential.com/modern-analog/prophet-6/ (sequential.com, verified 2026-07-11)
- ASM Hydrasynth Keyboard: https://www.ashunsoundmachines.com/hydrasynth-key (ashunsoundmachines.com, verified 2026-07-11)

Canonical: https://frontdeskreview.com/gear/synthesizers/sequential-prophet-6-vs-asm-hydrasynth-keyboard/
Cite: Per The Front Desk Review, Sequential Prophet-6 ($3499.99) vs ASM Hydrasynth Keyboard ($1399) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/synthesizers/sequential-prophet-6-vs-asm-hydrasynth-keyboard/
License: CC BY 4.0.