Monoprice Monolith M-15 V2 Specifications and Review

Last updated: August 9, 2026

The Monoprice Monolith M-15 V2 ranks #55 out of 97 total Large Powered Home Subwoofers (Over 75 lbs) for sound quality. See Top Recommended Speakers By Attribute for all the top speaker suggestions.

Brand: Monoprice

Monoprice Monolith M-15 V2 - ranked #55 of 97 Large Powered Home Subwoofers (Over 75 lbs) · Editor's rating 4.2/5
Check price at Amazon ($1,500) →

#55 Monoprice Monolith M-15 V2: $1,500 Amazon

Notes: Product # 42851

How it compares: Just above it: SVS SB-4000 - $300 more. Just below it: Arendal 1723 Subwoofer 2S - $1000 more.

CEA-2010-A Average (40-80Hz)120.0 dB
Cabinet Colorblack
CountryUnited States
Dimensions28.7"H x 17.7"W x 26.8"D (729.0 x 449.6 x 680.7 mm)
Drivers15" (381mm) driver
Enclosureported, front
Measurement SourceManufacturer
Output SPL at 12.5 Hz91.0 dB
Output SPL at 15 Hz106.3 dB
Output SPL at 20 Hz112.6 dB
Output SPL at 25 Hz116.6 dB
Output SPL at 31.5 Hz119.5 dB
Output SPL at 40 Hz120.9 dB
Output SPL at 50 Hz120.6 dB
Output SPL at 63 Hz120.0 dB
Output SPL at 80 Hz118.7 dB
Output SPL at 100 Hz120.1 dB
Output SPL at 125 Hz120.2 dB
Warranty5
Weight132.9 lbs / 60.3 kg
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