Monoprice Monolith M10-S Review: Rated 3.4/5

Last updated: October 21, 2026

The Monoprice Monolith M10-S is rated 3.4/5 for sound quality, #167 of 212 Medium Home Subwoofers (30-75 lbs). See all Subwoofers rankings for every top pick.

Monoprice Monolith M10-S · Editor's rating 3.4/5, ranked #167 of 212 Medium Home Subwoofers (30-75 lbs)

Prices on this page were last checked October 28, 2026 at 1:06 AM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.

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Brand: Monoprice

#167 Monoprice Monolith M10-S: $399 Discontinued eBay

Same family: the Monoprice Monolith M12-S (larger subwoofer, rated 3.7/5) and the Monoprice Monolith M15-S (larger subwoofer, rated 4.1/5).

Pros: A heavy 10 inch sealed subwoofer with a smaller footprint than the ported Monolith models, now discontinued. It has a 10-inch sealed driver and a 500W RMS amplifier, and measured output averages 109.6dB from 40 to 80Hz. Output stays above 96dB down to 20Hz, and the cabinet is about 414 x 320 x 386 mm.

Cons: It weighs 32.9 kg, which is very heavy for a 10 inch sub. Output of 96.4dB at 20Hz and 91.6dB at 15Hz is modest for a large room. The output figures come from the manufacturer rather than an independent lab, and it is discontinued, so it can only be bought used.

Notes: Product # 35143

Is the Monoprice Monolith M10-S right for you?

Skip it if

  • you need to move it often (33 kg each).
  • you want to buy it new: it is discontinued.
Released2019 (7 years ago)
Amplifier Power500W RMS
CEA-2010-A Average (40-80Hz)109.6 dB
CountryUnited States
Dimensions16.3”H x 12.6”W x 15.2”D (414.0 x 320.0 x 386.1 mm)
Drivers10” (254mm) driver
Enclosuresealed
Frequency Response17-20Hz
Measurement SourceManufacturer
Output SPL at 15 Hz91.6 dB
Output SPL at 20 Hz96.4 dB
Output SPL at 25 Hz101.6 dB
Output SPL at 31.5 Hz105.3 dB
Output SPL at 40 Hz107.8 dB
Output SPL at 50 Hz109.2 dB
Output SPL at 63 Hz110.5 dB
Output SPL at 80 Hz110.8 dB
Output SPL at 100 Hz110.9 dB
Output SPL at 125 Hz111.2 dB
Warranty5
Weight72.5 lbs (32.9 kg)

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