Monoprice SW-15 vs Klipsch SW-311

Short answer: the Monoprice SW-15. It ranks #13 of 145 subwoofers by sound quality at $374.99; the Klipsch SW-311 ranks #80 and costs $399, so there is not much of a tradeoff to weigh.

What the Monoprice SW-15 offers: 15-inch ported with 600W RMS (800W peak) delivers Large-room Bassaholic rating. Unrivaled mid-bass punch for $375. Strong output with clean control. Dual speaker-level inputs and 40-150Hz crossover for flexible hookup. Watch for: Budget-tier design, ported room gain dependency, 30 kg mid-size, and limited dynamic headroom.

What the Klipsch SW-311 offers: 10-inch with dual passive radiators and 500W delivers surprising output for compact 13-inch cube. Patented ARC II auto room correction with 12 active filters. Tight clean powerful bass with no distortion at limits. Watch for: No detailed measurement caveats are currently recorded.

Buy the Monoprice SW-15. It ranks higher for sound quality than the Klipsch SW-311 and costs less, so there is no real case for the other one.

Want more options? Browse the full Subwoofers rankings.

Specifications Side By Side

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Prices on this page were last checked September 16, 2026 at 12:41 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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The Two Speakers In Full

Monoprice SW-15: $374.99 Amazon eBay

Pros: 15-inch ported with 600W RMS (800W peak) delivers Large-room Bassaholic rating. Unrivaled mid-bass punch for $375. Strong output with clean control. Dual speaker-level inputs and 40-150Hz crossover for flexible hookup.

Cons: Budget-tier design, ported room gain dependency, 30 kg mid-size, and limited dynamic headroom.

Notes: Product # 41499

Full Monoprice SW-15 review and specifications →

Amplifier Power	600W RMS / 800W peak
CEA-2010-A Average (40-80Hz)	119.0 dB
Cabinet Color	black
Country	United States
Crossover Frequency	40-150Hz, 18dB/octave
Dimensions	18.1"H x 21"W x 22.7"D (459.7 x 533.4 x 576.6 mm)
Drivers	15" (381mm) driver
Enclosure	ported, bottom
Frequency Response	30-150Hz (-10dB)
Inputs	Stereo line level and speaker level
Measurement Source	Audioholics
Output SPL at 15 Hz	90.0 dB
Output SPL at 20 Hz	101.2 dB
Output SPL at 25 Hz	106.3 dB
Output SPL at 31.5 Hz	111.2 dB
Output SPL at 40 Hz	116.0 dB
Output SPL at 50 Hz	120.2 dB
Output SPL at 63 Hz	120.5 dB
Output SPL at 80 Hz	119.5 dB
Phase Control	0° or 180°
Warranty	1
Weight	66.1 lbs (30.0 kg)

• Links
  • Monoprice SW-15 Website
• Reviews, Comparisons and Sound Samples
  • Independently measured by Audioholics; the published figures above come from this ASR subwoofer measurement thread.
• Head-to-Head Comparisons
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Klipsch SW-311: $399 eBay

Pros: 10-inch with dual passive radiators and 500W delivers surprising output for compact 13-inch cube. Patented ARC II auto room correction with 12 active filters. Tight clean powerful bass with no distortion at limits.

Full Klipsch SW-311 review and specifications →

Amplifier Power	500W RMS
CEA-2010-A Average (40-80Hz)	112.4 dB
Cabinet Color	black
Country	United States
Dimensions	13"H x 13"W x 14"D (330.2 x 330.2 x 355.6 mm)
Drivers	10" (254mm) driver
Enclosure	passive radiator
Frequency Response	22-120Hz
Measurement Source	Audioholics
Output SPL at 20 Hz	87.2 dB
Output SPL at 25 Hz	100.9 dB
Output SPL at 31.5 Hz	105.6 dB
Output SPL at 40 Hz	108.3 dB
Output SPL at 50 Hz	111.6 dB
Output SPL at 63 Hz	114.4 dB
Output SPL at 80 Hz	115.2 dB
Output SPL at 100 Hz	114.5 dB
Output SPL at 125 Hz	113.6 dB
Warranty	5/2
Weight	37 lbs (16.8 kg)

• Links
  • Klipsch SW-311 Website
• Reviews, Comparisons and Sound Samples
  • Independently measured by Audioholics; the published figures above come from this ASR subwoofer measurement thread.
• Head-to-Head Comparisons
  • Klipsch SW-311 vs SVS SB-3000