Rogersound Labs
RSL Speedwoofer 10S MKII
$499Cheaper
Released 2022
Best Subwoofers · head-to-head
RSL Speedwoofer 10S MKII vs Monolith by Monoprice M-12 V2
A sourced, side-by-side comparison. RSL Speedwoofer 10S MKII is cheaper at $499. Every spec and price links to its source.
Monoprice
Monolith by Monoprice M-12 V2
$849.99
Which is better: the RSL Speedwoofer 10S MKII or Monolith by Monoprice M-12 V2?
The RSL Speedwoofer 10S MKII wins 1 of the 1 specs we compare head to head; the other wins 0. The RSL Speedwoofer 10S MKII is the cheaper at $499. The RSL Speedwoofer 10S MKII both leads on specs and costs less — the straightforward pick.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | RSL Speedwoofer 10S MKII | Monolith by Monoprice M-12 V2 |
|---|---|---|
| US price | $499 | $849.99 |
| Brand | Rogersound Labs | Monoprice |
| Released | 2022 | — |
| Driver size (in) | 10 | 12 |
| Amplifier power rms (W) | 400 | 500 |
| Amplifier power peak (W) | 1020 | — |
| Enclosure type | ported | ported |
| Frequency response (Hz) | 22-200 Hz ±3 dB | 17-200 |
| Amplifier class | class-d | class-d |
| Driver orientation | front-firing | — |
| Room correction | No | No |
| Wireless input | Yes | No |
| Dimensions (in) | 15 1/2 x 15 x 15 3/4 | 25.8 x 16.7 x 22.8 |
| Weight (lb) | 40.6 | 98.34 |
Sources — RSL Speedwoofer 10S MKII: rslspeakers.com (verified 2026-07-11). Monolith by Monoprice M-12 V2: monoprice.com (verified 2026-07-11).
What's the difference between the RSL Speedwoofer 10S MKII and Monolith by Monoprice M-12 V2?
Where the two actually differ on the specs we track (6 of 11). Matching specs are omitted.
- Driver size (in): RSL Speedwoofer 10S MKII 10 vs Monolith by Monoprice M-12 V2 12
- Amplifier power rms (W): RSL Speedwoofer 10S MKII 400 vs Monolith by Monoprice M-12 V2 500
- Frequency response (Hz): RSL Speedwoofer 10S MKII 22-200 Hz ±3 dB vs Monolith by Monoprice M-12 V2 17-200
- Wireless input: RSL Speedwoofer 10S MKII true vs Monolith by Monoprice M-12 V2 false
- Dimensions (in): RSL Speedwoofer 10S MKII 15 1/2 x 15 x 15 3/4 vs Monolith by Monoprice M-12 V2 25.8 x 16.7 x 22.8
- Weight (lb): RSL Speedwoofer 10S MKII 40.6 vs Monolith by Monoprice M-12 V2 98.34