Monoprice
Monolith by Monoprice M-12 V2
$849.99Cheaper
Best Subwoofers · head-to-head
A sourced, side-by-side comparison. Monolith by Monoprice M-12 V2 is cheaper at $849.99. Every spec and price links to its source.
Monoprice
$849.99Cheaper
KEF
$1699.99
The KEF KC62 wins 1 of the 1 specs we compare head to head; the other wins 0. The Monolith by Monoprice M-12 V2 is the cheaper at $849.99. Get the KEF KC62 for the stronger spec sheet, the Monolith by Monoprice M-12 V2 to spend less.
As an Amazon Associate we earn from qualifying purchases. Prices verified at capture; live price may differ.
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | | |
|---|---|---|
| US price | $849.99 | $1699.99 |
| Brand | Monoprice | KEF |
| Released | — | — |
| Driver size (in) | 12 | 6.5 |
| Amplifier power rms (W) | 500 | 1000 |
| Amplifier power peak (W) | — | — |
| Enclosure type | ported | — |
| Frequency response (Hz) | 17-200 | 11 to 200 |
| Amplifier class | class-d | class-d |
| Driver orientation | — | — |
| Room correction | No | No |
| Wireless input | No | Yes |
| Dimensions (in) | 25.8 x 16.7 x 22.8 | 9.7 x 10.1 x 9.8 |
| Weight (lb) | 98.34 | 30.9 |
Sources — Monolith by Monoprice M-12 V2: monoprice.com (verified 2026-07-11). KEF KC62: us.kef.com (verified 2026-07-11).
Where the two actually differ on the specs we track (6 of 11). Matching specs are omitted.
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
No sourced tester review yet.
Only one whitelisted tester—What Hi-Fi, using Newport Test Labs—published a hands-on, lab-measured review of the KEF KC62. It rates the compact subwoofer highly for powerful, clean, deep bass and easy setup, but flags limited maximum SPL and fiddly custom speaker-level connectors. (1 sourced review, 1 lab-tested.)
Praised: Powerful, clean, deep bass extraordinary for its tiny size; Compact aluminium chassis, easy to position and set up; Measured 106 dB SPL at 1m on an 80Hz tone, 1dB above spec.
Flagged: Limited maximum sound pressure levels / ceiling output; Awkward custom speaker-level connector limits cable gauge.