# RSL Speedwoofer 10S MKII vs Bowers & Wilkins ASW610: specs and price compared

A sourced, side-by-side comparison of the RSL Speedwoofer 10S MKII (Rogersound Labs) and Bowers & Wilkins ASW610 (Bowers & Wilkins) among subwoofers. RSL Speedwoofer 10S MKII is the cheaper of the two at $499.

## Side by side

| 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 |

## Key differences

- 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 Yes vs Bowers & Wilkins ASW610 No
- 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

**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.)

## Sources

- RSL Speedwoofer 10S MKII: https://rslspeakers.com/products/rsl-speedwoofer-10s-mkii?country=US (rslspeakers.com, verified 2026-07-11)
- Bowers & Wilkins ASW610: https://www.bowerswilkins.com/en-us/product/subwoofers/asw-series/asw610/150059.html (bowerswilkins.com, verified 2026-07-11)

Canonical: https://frontdeskreview.com/gear/subwoofers/rsl-speedwoofer-10s-mkii-vs-bowers-wilkins-asw610/
Cite: Per The Front Desk Review, RSL Speedwoofer 10S MKII ($499) vs Bowers & Wilkins ASW610 ($1000) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/subwoofers/rsl-speedwoofer-10s-mkii-vs-bowers-wilkins-asw610/
License: CC BY 4.0.