Rogersound Labs
RSL Speedwoofer 10S MKII
$499Cheaper
Released 2022
Best Subwoofers · head-to-head
RSL Speedwoofer 10S MKII vs Bowers & Wilkins ASW610
A sourced, side-by-side comparison. RSL Speedwoofer 10S MKII is cheaper at $499. Every spec and price links to its source.
Bowers & Wilkins
Bowers & Wilkins ASW610
$1000
Which is better: the RSL Speedwoofer 10S MKII or Bowers & Wilkins ASW610?
The Bowers & Wilkins ASW610 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. Get the Bowers & Wilkins ASW610 for the stronger spec sheet, the RSL Speedwoofer 10S MKII to spend less.
As an Amazon Associate we earn from qualifying purchases. Prices verified at capture; live price may differ.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | RSL Speedwoofer 10S MKII | Bowers & Wilkins ASW610 |
|---|---|---|
| US price | $499 | $1000 |
| Brand | Rogersound Labs | Bowers & Wilkins |
| Released | 2022 | — |
| Driver size (in) | 10 | 10 |
| Amplifier power rms (W) | 400 | 200 |
| Amplifier power peak (W) | 1020 | — |
| Enclosure type | ported | sealed |
| Frequency response (Hz) | 22-200 Hz ±3 dB | 27 to 140 |
| 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 | 12.2 x 12.2 x 13.66 |
| Weight (lb) | 40.6 | 27.6 |
Sources — RSL Speedwoofer 10S MKII: rslspeakers.com (verified 2026-07-11). Bowers & Wilkins ASW610: bowerswilkins.com (verified 2026-07-11).
What's the difference between the RSL Speedwoofer 10S MKII and Bowers & Wilkins ASW610?
Where the two actually differ on the specs we track (6 of 11). Matching specs are omitted.
- Amplifier power rms (W): RSL Speedwoofer 10S MKII 400 vs Bowers & Wilkins ASW610 200
- Enclosure type: RSL Speedwoofer 10S MKII ported vs Bowers & Wilkins ASW610 sealed
- Frequency response (Hz): RSL Speedwoofer 10S MKII 22-200 Hz ±3 dB vs Bowers & Wilkins ASW610 27 to 140
- Wireless input: RSL Speedwoofer 10S MKII true vs Bowers & Wilkins ASW610 false
- Dimensions (in): RSL Speedwoofer 10S MKII 15 1/2 x 15 x 15 3/4 vs Bowers & Wilkins ASW610 12.2 x 12.2 x 13.66
- Weight (lb): RSL Speedwoofer 10S MKII 40.6 vs Bowers & Wilkins ASW610 27.6
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
RSL Speedwoofer 10S MKII
No sourced tester review yet.
Bowers & Wilkins ASW610
Only one whitelisted tester covers the exact B&W ASW610: What Hi-Fi, which named it Best subwoofer up to £700 (Awards 2011). They praise agile, well-extended bass and authoritative, musical output from a compact design, listing 'Nothing' under cons. It is a qualitative listening review with no lab measurements; no other whitelisted outlet covers this model, so no cross-source comparison is possible. (1 sourced review.)
Praised: Agile, well-extended bass that belies its compact size; Authoritative, dynamic delivery blending power with musicality; Neat, well-made and well-equipped for the money.