Rythmik Audio
Rythmik FV15HP
$2127
Best Subwoofers · head-to-head
Rythmik FV15HP vs REL T/9x
A sourced, side-by-side comparison. REL T/9x is cheaper at $1699. Every spec and price links to its source.
REL Acoustics
REL T/9x
$1699Cheaper
Which is better: the Rythmik FV15HP or REL T/9x?
On the specs we track, they're closely matched. The REL T/9x is the cheaper at $1699.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Rythmik FV15HP | REL T/9x |
|---|---|---|
| US price | $2127 | $1699 |
| Brand | Rythmik Audio | REL Acoustics |
| Released | — | — |
| Driver size (in) | 15 | 10 |
| Amplifier power rms (W) | 600 | 300 |
| Amplifier power peak (W) | — | — |
| Enclosure type | ported | passive-radiator |
| Frequency response (Hz) | 12 to 200 | — |
| Amplifier class | class-h | class-ab |
| Driver orientation | — | front-firing |
| Room correction | No | No |
| Wireless input | No | Yes |
| Dimensions (in) | 24-1/2 x 18-1/4 x 24-1/4 | 13.4 x 14.5 x 15.5 |
| Weight (lb) | — | 45.5 |
Sources — Rythmik FV15HP: rythmikaudio.com (verified 2026-07-11). REL T/9x: rel.net (verified 2026-07-11).
What's the difference between the Rythmik FV15HP and REL T/9x?
Where the two actually differ on the specs we track (6 of 11). Matching specs are omitted.
- Driver size (in): Rythmik FV15HP 15 vs REL T/9x 10
- Amplifier power rms (W): Rythmik FV15HP 600 vs REL T/9x 300
- Enclosure type: Rythmik FV15HP ported vs REL T/9x passive-radiator
- Amplifier class: Rythmik FV15HP class-h vs REL T/9x class-ab
- Wireless input: Rythmik FV15HP false vs REL T/9x true
- Dimensions (in): Rythmik FV15HP 24-1/2 x 18-1/4 x 24-1/4 vs REL T/9x 13.4 x 14.5 x 15.5