Monoprice Monolith M-12 V2 Review: Ranked #95 of 110

Last updated: September 13, 2026

The Monoprice Monolith M-12 V2 ranks #95 out of 110 total Large Home Subwoofers (Over 75 lbs) for sound quality. See all Subwoofers rankings for every top pick.

Brand: Monoprice

Prices on this page were last checked September 14, 2026 at 1:47 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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Monoprice Monolith M-12 V2 - ranked #95 of 110 Large Home Subwoofers (Over 75 lbs) · Editor's rating 3.8/5

#95 Monoprice Monolith M-12 V2: $900 eBay

Pros: 12-inch THX-certified ported with 500W RMS offers excellent value. Delivers very linear response with extension down to 20Hz. Port plug allows sealed configuration for added flexibility. Variable phase and XLR inputs distinguish it from budget offerings.

Notes: Product # 42847

How it compares: Just above it: Monoprice Monolith 12 THX Ultra - $599 more. Just below it: Cadence Sound CSX-15 MKII - $799 more.

CEA-2010-A Average (40-80Hz)114.8 dB
Cabinet Colorblack
CountryUnited States
Dimensions20.9"H x 25.8"W x 16.7"D (530.9 x 655.3 x 424.2 mm)
Drivers12" (305mm) driver
Enclosureported, front
Measurement SourceManufacturer
Output SPL at 15 Hz99.7 dB
Output SPL at 20 Hz108.3 dB
Output SPL at 25 Hz112.3 dB
Output SPL at 31.5 Hz113.6 dB
Output SPL at 40 Hz114.2 dB
Output SPL at 50 Hz114.6 dB
Output SPL at 63 Hz115.0 dB
Output SPL at 80 Hz115.4 dB
Output SPL at 100 Hz115.9 dB
Output SPL at 125 Hz116.3 dB
Warranty5
Weight98.3 lbs (44.6 kg)

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