Monoprice SW-15 vs MartinLogan Dynamo 12

Short answer: the Monoprice SW-15. It ranks #13 of 145 subwoofers by sound quality at $374.99; the MartinLogan Dynamo 12 ranks #105 and costs $1599.99, which makes this an easy call rather than a real tradeoff.

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 MartinLogan Dynamo 12 offers: Independent CEA-2010 testing records 91.7 dB at 20 Hz and 110.6 dB through 40-80 Hz. The sealed enclosure with 12” (305mm) anodized-aluminum driver suits a mid-size room. Anthem Room Correction (ARC Genesis) and app-based control simplify setup. Watch for: Nearly all controls, including low-pass frequency and phase, are app-only, with no physical switches for systems that lack separate bass management.

Buy the Monoprice SW-15. It ranks higher for sound quality than the MartinLogan Dynamo 12 and costs less, which settles it without a real tradeoff to make.

Looking for alternatives? See the complete 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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  • Monoprice SW-15 vs Paradigm Defiance X12
  • Monoprice SW-15 vs Power Sound Audio (PSA) XS15-BASE
  • Monoprice SW-15 vs Power Sound Audio (PSA) XV15
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MartinLogan Dynamo 12: $1599.99 Crutchfield eBay

Pros: Independent CEA-2010 testing records 91.7 dB at 20 Hz and 110.6 dB through 40-80 Hz. The sealed enclosure with 12” (305mm) anodized-aluminum driver suits a mid-size room. Anthem Room Correction (ARC Genesis) and app-based control simplify setup.

Cons: Nearly all controls, including low-pass frequency and phase, are app-only, with no physical switches for systems that lack separate bass management.

Full MartinLogan Dynamo 12 review and specifications →

Amplifier Power	800W RMS / 1600W peak
CEA-2010-A Average (40-80Hz)	110.6 dB
Country	United States
Dimensions	16.8"H x 15.8"W x 15.8"D (425.5 x 400.1 x 400.1 mm)
Drivers	12" (305mm) driver
Enclosure	sealed
Frequency Response	23-200Hz, ±3dB
Measurement Source	Audioholics
Output SPL at 12.5 Hz	81.1 dB
Output SPL at 16 Hz	85.7 dB
Output SPL at 20 Hz	91.7 dB
Output SPL at 25 Hz	97.6 dB
Output SPL at 31.5 Hz	102.5 dB
Output SPL at 40 Hz	107.7 dB
Output SPL at 50 Hz	110.6 dB
Output SPL at 63 Hz	111.9 dB
Output SPL at 80 Hz	112.2 dB
Output SPL at 100 Hz	110.1 dB
Output SPL at 125 Hz	108.7 dB
Weight	61.5 lbs (27.9 kg)

• Links
  • MartinLogan Dynamo 12 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
  • MartinLogan Dynamo 12 vs SVS SB-3000