MartinLogan Dynamo 1600X vs Rythmik F12

Last updated: September 19, 2026

Short answer: the MartinLogan Dynamo 1600X is for listeners who want the scale of a sealed 15-inch subwoofer, while the Rythmik F12 is the more value-oriented servo-controlled sealed option. The right choice depends on room size and how much output headroom you need.

MartinLogan Dynamo 1600X vs Rythmik F12

On the MartinLogan Dynamo 1600X side: Sealed 15-inch design with 900W RMS and 1800W peak delivers forceful, clean, tight low bass. The catch: It needs careful room integration and carries a premium price.

The case for the Rythmik F12: Sealed 12-inch servo with 370W RMS offers excellent value.

The Dynamo 1600X uses a 15-inch driver with 900W RMS and 1800W peak power to deliver forceful, tight bass. The F12 uses a sealed 12-inch servo design and 370W amplification, emphasizing control and value in a more modest package.

Buy the MartinLogan Dynamo 1600X for larger-room sealed-subwoofer output and greater amplifier headroom.

Buy the Rythmik F12 for servo-controlled sealed bass and stronger value in a smaller system.

Want more options? Browse the full Subwoofers rankings.

Buy the Rythmik F12 at Rythmik Audio ($1,439) →

Specifications Side By Side

MartinLogan Dynamo 1600X Rythmik F12
Price$1,606.77$1,120
Ranked#2 of 145 in Medium Home Subwoofers (30-75 lbs)#20 of 145 in Medium Home Subwoofers (30-75 lbs)
Enclosuresealedsealed
Output SPL at 15 Hz86.2 dB-
Output SPL at 20 Hz99.4 dB103.6 dB
Output SPL at 25 Hz103.9 dB106.7 dB
Output SPL at 31.5 Hz111.7 dB113.5 dB
Output SPL at 40 Hz118.4 dB118.3 dB
Output SPL at 50 Hz121.0 dB119.1 dB
Output SPL at 63 Hz121.8 dB120.4 dB
Output SPL at 80 Hz121.0 dB119.6 dB
Output SPL at 100 Hz120.2 dB-
Output SPL at 125 Hz119.0 dB-
CEA-2010-A Average (40-80Hz)120.5 dB119.3 dB
Dimensions20.1"H x 17.9"W x 19.1"D (510.5 x 454.7 x 485.1 mm)15.7"H x 15.7"W x 17"D (400.0 x 400.0 x 431.8 mm)
Weight56 lbs (25.4 kg)75 lbs (34.0 kg)
Warranty35/3
Cabinet Colorblackblack
CountryUnited StatesUnited States
Measurement SourceAudioholicsBrent Butterworth
Frequency Response20-200Hz, ±3dB14Hz extension
Amplifier Power900W RMS / 1800W peak370W RMS
InputsRCA (stereo and LFE), XLR (LFE), speaker-level (banana)XLR (2), RCA (line/LFE)
Drivers15" (381mm) driver12" (305mm) driver
XLR InputYesYes
RCA InputYesYes
TRS InputNoNo
Optical InputNoNo
Coaxial InputNoNo
USB InputNoNo
HDMI InputNoNo
AES InputNoNo
Aux InputNoNo
Output SPL at 16 Hz-101.0 dB
Buy the Rythmik F12 at Rythmik Audio ($1,439) →

How MartinLogan Dynamo 1600X compares with other leading options:

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
Search eBay for MartinLogan Dynamo 1600X →

Rythmik F12: $1,120 Rythmik Audio eBay

Rythmik F12 ranking card

Pros: Sealed 12-inch servo with 370W RMS offers excellent value. Very musical and can disappear in small rooms. Digs to 14Hz with excellent build quality and well-braced cabinet.

Full Rythmik F12 review and specifications →

AES InputNo
Amplifier Power370W RMS
Aux InputNo
CEA-2010-A Average (40-80Hz)119.3 dB
Cabinet Colorblack
Coaxial InputNo
CountryUnited States
Dimensions15.7"H x 15.7"W x 17"D (400.0 x 400.0 x 431.8 mm)
Drivers12" (305mm) driver
Enclosuresealed
Frequency Response14Hz extension
HDMI InputNo
InputsXLR (2), RCA (line/LFE)
Measurement SourceBrent Butterworth
Optical InputNo
Output SPL at 16 Hz101.0 dB
Output SPL at 20 Hz103.6 dB
Output SPL at 25 Hz106.7 dB
Output SPL at 31.5 Hz113.5 dB
Output SPL at 40 Hz118.3 dB
Output SPL at 50 Hz119.1 dB
Output SPL at 63 Hz120.4 dB
Output SPL at 80 Hz119.6 dB
RCA InputYes
TRS InputNo
USB InputNo
Warranty5/3
Weight75 lbs (34.0 kg)
XLR InputYes
Check current price at Rythmik Audio ($1,439) →Search eBay for Rythmik F12 →