Monoprice SW-12 Review: Ranked #5 of 145

Last updated: September 13, 2026

The Monoprice SW-12 ranks #5 out of 145 total Medium Home Subwoofers (30-75 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 SW-12 - ranked #5 of 145 Medium Home Subwoofers (30-75 lbs) · Editor's rating 4.2/5
Check price at Amazon ($230) →

#5 Monoprice SW-12: $230 Amazon eBay

Pros: 12-inch ported with 400W RMS (600W peak) on a budget at just $230. Hits hard with clean tight transient response. Variable crossover and volume controls for setup flexibility. Speaker-level and line-level inputs for easy integration.

Cons: Entry-level build quality, ported enclosure room interaction, and lower 112.3 dB output capability.

Notes: Product # 41498

How it compares: Just above it: PSB Speakers SubSeries 450 - $1669 more. Just below it: Outlaw Audio Ultra-X12 - $769 more.

Amplifier Power400W RMS / 600W peak
CEA-2010-A Average (40-80Hz)121.2 dB
Cabinet Colorblack
CountryUnited States
Dimensions14.9"H x 18.3"W x 19.1"D (378.5 x 464.8 x 485.1 mm)
Drivers12" (305mm) driver
Enclosureported, bottom
Frequency Response35-150Hz, -10dB
Measurement SourceBrent Butterworth
Output SPL at 16 Hz90.6 dB
Output SPL at 20 Hz102.7 dB
Output SPL at 25 Hz111.1 dB
Output SPL at 31.5 Hz115.2 dB
Output SPL at 40 Hz119.0 dB
Output SPL at 50 Hz119.7 dB
Output SPL at 63 Hz122.9 dB
Output SPL at 80 Hz123.0 dB
Warranty1
Weight50.7 lbs (23.0 kg)
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