# RSL Speedwoofer 10S MKII vs Monolith by Monoprice M-12 V2: specs and price compared

A sourced, side-by-side comparison of the RSL Speedwoofer 10S MKII (Rogersound Labs) and Monolith by Monoprice M-12 V2 (Monoprice) among subwoofers. RSL Speedwoofer 10S MKII is the cheaper of the two at $499.

## Side by side

| 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 |

## Key differences

- 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 Yes vs Monolith by Monoprice M-12 V2 No
- 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

## Sources

- RSL Speedwoofer 10S MKII: https://rslspeakers.com/products/rsl-speedwoofer-10s-mkii?country=US (rslspeakers.com, verified 2026-07-11)
- Monolith by Monoprice M-12 V2: https://www.monoprice.com/product?p_id=42847 (monoprice.com, verified 2026-07-11)

Canonical: https://frontdeskreview.com/gear/subwoofers/rsl-speedwoofer-10s-mkii-vs-monoprice-monolith-m-12-v2/
Cite: Per The Front Desk Review, RSL Speedwoofer 10S MKII ($499) vs Monolith by Monoprice M-12 V2 ($849.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/subwoofers/rsl-speedwoofer-10s-mkii-vs-monoprice-monolith-m-12-v2/
License: CC BY 4.0.