MartinLogan Dynamo 1600X vs Monoprice SW-12

Last updated: September 20, 2026

Short answer: the Dynamo 1600X for headroom, the Monoprice SW-12 for budget impact. The sealed 15-inch Dynamo’s 900W RMS and 1800W peak give forceful, clean, tight low bass, but its 121.5 dB mid-range output and $1606.77 price are the tradeoffs. The 12-inch ported SW-12 hits hard with clean, tight transients at $166.73, though its output capability is lower at 112.3 dB.

MartinLogan Dynamo 1600X vs Monoprice SW-12

On the MartinLogan Dynamo 1600X side: Sealed 15-inch with 900W RMS, 1800W peak delivers forceful clean tight low bass. The catch: Ported design room integration needs, mid-range 121.5 dB output, and $1,607 price.

The case for the Monoprice SW-12: 12-inch ported with 400W RMS (600W peak) on a budget at just $230. Hits hard with clean tight transient response. Set against that: Entry-level build quality, ported enclosure room interaction, and lower 112.3 dB output capability.

Buy the Monoprice SW-12. Both are rated the same for sound quality, and it costs $1440.04 less than the MartinLogan Dynamo 1600X.

Want more options? Browse the full Subwoofers rankings.

Buy the Monoprice SW-12 at Amazon ($166.73) →

Specifications Side By Side

MartinLogan Dynamo 1600X Monoprice SW-12
Price$1,606.77$166.73
Ranked#2 of 145 in Medium Home Subwoofers (30-75 lbs)#5 of 145 in Medium Home Subwoofers (30-75 lbs)
Enclosuresealedported, bottom
Output SPL at 15 Hz86.2 dB-
Output SPL at 20 Hz99.4 dB102.7 dB
Output SPL at 25 Hz103.9 dB111.1 dB
Output SPL at 31.5 Hz111.7 dB115.2 dB
Output SPL at 40 Hz118.4 dB119.0 dB
Output SPL at 50 Hz121.0 dB119.7 dB
Output SPL at 63 Hz121.8 dB122.9 dB
Output SPL at 80 Hz121.0 dB123.0 dB
Output SPL at 100 Hz120.2 dB-
Output SPL at 125 Hz119.0 dB-
CEA-2010-A Average (40-80Hz)120.5 dB121.2 dB
Dimensions20.1"H x 17.9"W x 19.1"D (510.5 x 454.7 x 485.1 mm)14.9"H x 18.3"W x 19.1"D (378.5 x 464.8 x 485.1 mm)
Weight56 lbs (25.4 kg)50.7 lbs (23.0 kg)
Warranty31
Cabinet Colorblackblack
CountryUnited StatesUnited States
Measurement SourceAudioholicsBrent Butterworth
Frequency Response20-200Hz, ±3dB35-150Hz, -10dB
Amplifier Power900W RMS / 1800W peak400W RMS / 600W peak
InputsRCA (stereo and LFE), XLR (LFE), speaker-level (banana)-
Drivers15" (381mm) driver12" (305mm) driver
XLR InputYes-
RCA InputYes-
TRS InputNo-
Optical InputNo-
Coaxial InputNo-
USB InputNo-
HDMI InputNo-
AES InputNo-
Aux InputNo-
Output SPL at 16 Hz-90.6 dB
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Prices on this page were last checked September 23, 2026 at 11:24 PM 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

MartinLogan Dynamo 1600X: $1,606.77 eBay

MartinLogan Dynamo 1600X ranking card

Pros: Sealed 15-inch with 900W RMS, 1800W peak delivers forceful clean tight low bass. Easily configurable as forward-firing or down-firing. Smartphone app with Anthem Room Correction (ARC) optimizes bass across room. Wireless capable with optional SWT-X module.

Cons: Ported design room integration needs, mid-range 121.5 dB output, and $1607 price.

Full MartinLogan Dynamo 1600X review and specifications →

AES InputNo
Amplifier Power900W RMS / 1800W peak
Aux InputNo
CEA-2010-A Average (40-80Hz)120.5 dB
Cabinet Colorblack
Coaxial InputNo
CountryUnited States
Dimensions20.1"H x 17.9"W x 19.1"D (510.5 x 454.7 x 485.1 mm)
Drivers15" (381mm) driver
Enclosuresealed
Frequency Response20-200Hz, ±3dB
HDMI InputNo
InputsRCA (stereo and LFE), XLR (LFE), speaker-level (banana)
Measurement SourceAudioholics
Optical InputNo
Output SPL at 15 Hz86.2 dB
Output SPL at 20 Hz99.4 dB
Output SPL at 25 Hz103.9 dB
Output SPL at 31.5 Hz111.7 dB
Output SPL at 40 Hz118.4 dB
Output SPL at 50 Hz121.0 dB
Output SPL at 63 Hz121.8 dB
Output SPL at 80 Hz121.0 dB
Output SPL at 100 Hz120.2 dB
Output SPL at 125 Hz119.0 dB
RCA InputYes
TRS InputNo
USB InputNo
Warranty3
Weight56 lbs (25.4 kg)
XLR InputYes
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Monoprice SW-12: $166.73 Amazon eBay

Monoprice SW-12 ranking card

Pros: 12-inch ported with 400W RMS (600W peak) on a budget at just $167. 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

Full Monoprice SW-12 review and specifications →

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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