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MartinLogan Depth 212 Subwoofer Review
MartinLogan Depth 212 - Front View

Main Features

  • 2 x 12" Aluminium Woofer
  • 1,100 watts RMS Output
  • 18-120 Hz Frequency Response
  • Weight: 126.99 lbs / 57.60kg
  • Dimensions (H x W x D): 21" x 19-13/16" x 20-3/8"
MSRP: $5,500 (list price)
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MartinLogan Depth 212 Subwoofer Review
MartinLogan Depth 212 MartinLogan Depth 21...
See at AMAZON

Depth 212 is a Sealed type Powered Subwoofer by MartinLogan with a frequency range of 18-120 Hz. It was released in 2021. It features 2 x 12" Aluminium Woofer, and powered by a Class D 1100 watts amplifier.

A sealed subwoofer with 2 x 12 inch woofers on a 1100 W RMS (2200 W peak) Class D amplifier, 18 Hz to 120 Hz. Anthem Room Correction is built in. Depth subwoofers run opposed woofers in MartinLogan's BalancedForce arrangement, so the cabinet's reaction forces cancel instead of shaking the floor.

Depth 212 is a member of MartinLogan's Depth series of Powered subwoofers. Below you can see the main specs of these subwoofers as well as review and comparison links.

MartinLogan Depth Series Subwoofers
Model Frequency Woofer Amp Power Weight
MartinLogan Depth 212
18-120k Hz 12" 1100 watts 57.60kg
MartinLogan Depth 215
Compare
18-120k Hz 15" 2200 watts 78.50kg


**This post contains affiliate links, and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.

Frequency Response

MartinLogan Depth 212 has a Frequency response range of 18-120 Hz at ±3dB. Thanks to its 2 x 12-inch driver and 1100 watts RMS ( 2200 watts MAX ) amplifier, at 18Hz the Depth 212 can generate bass levels that is even below 20Hz which is considered to be the bottom limit of Full Range sound (20Hz -20kHz) that human can hear.

Here we have a comparison of how Depth 212's Low and High frequency values compare with the average, max and min Low and High frequency values in its class.
Low Frequency
Powered Subwoofers
MartinLogan Depth 212
Min
Average
Max
High Frequency
Subwoofer Speakers
MartinLogan Depth 212
Min
Average
Max

Among all subwoofers in our database with a max MSRP price of 10000$, these are the 5 Powered Subwoofer models that can reach deeper bass levels than the MartinLogan Depth 212's 18Hz:

  • B&W DB4S with Low Frequency of 10 Hz (Compare w/ Depth 212)
  • B&W DB3D with Low Frequency of 10 Hz (Compare w/ Depth 212)
  • GoldenEar SuperSub XXL with Low Frequency of 10 Hz (Compare w/ Depth 212)
  • B&W DB2D with Low Frequency of 10 Hz (Compare w/ Depth 212)
  • KEF KF92 with Low Frequency of 11 Hz (Compare w/ Depth 212)

Inputs and Outputs

  • PreampLevel Inputs: Stereo RCA line, LFE, XLR, speaker level
  • SpeakerLevel Inputs: Yes

MartinLogan Depth 212 External Dimensions and Weight

MartinLogan Depth 212 has external dimensions of (Height x Width x Depth) 21 x 19-13/16 x 20-3/8inch (533.0 x 503.0 x 518.0mm ).

Base Surface Area
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited. The base area of MartinLogan Depth 212 is approximately 2605.5cm2 / 403.9inch2.

Weight

The MartinLogan Depth 212 weighs 57.60kg / 126.7lbs. Weight of a subwoofer is an important factor when you need to move and reposition the unit often to find the optimal positioning, also known as 'Subwoofer Crawling'. Here is a comparison of how Depth 212's weight compares with the average, max and min weights in its class.

Weight
All Subwoofer Speakers
MartinLogan Depth 212
Min
Average
Max
Weight
Subwoofer Speakers under $10000
MartinLogan Depth 212
Min
Average
Max

Cabinet type and Materials

MartinLogan Depth 212 has a Acoustic Suspension type cabinet. Acoustic suspension aka Sealed subwoofers are preferred for music oriented systems whereas the Ported subwoofers are generally accepted to be more suitable for home theatre systems.

Does the MartinLogan Depth 212 come with a Grille?

Depth 212 comes with grilles. The purpose of the grille is to protect the delicate driver elements from external impacts while still allowing the sound to pass as clearly as possible.

Recommended Accessories

Here is a list of accessories that we think you may need for the MartinLogan Depth 212.

  • Vibration Isolators: IsoAcoustics isolators are our favorite isolators but you may find more affordable options too.
  • Acoustic Panels and Treatments: Your room is as important as your stereo equipment so acoustic treatments goes a long way in improving the overall performance.

Official Product Page

Official manufacturer's product page for the MartinLogan Depth 212 speaker can be found below:
Official Product Page for MartinLogan Depth 212

MartinLogan Depth 212 Detailed Specifications

General
BrandMartinLogan
Full Model NameMartinLogan Depth 212
TypePowered Subwoofer
Release Date2021
Frequency Response18-120 Hz
Enclosure TypeSealed
EnclosureAcoustic Suspension
Firing DirectionFront
Amplifier & Driver
Power (RMS)1100 watts
Power (Peak)2200 watts
Amplifier TypeClass D
Woofer2 x 12-inch Aluminium

Controls & Connections
Phase ControlYes
Line-level InputsStereo RCA line, LFE, XLR, speaker level
Speaker-level InputsYes
Physical
Dimensions (HxWxD)21" x 19-13/16" x 20-3/8" (533.0 x 503.0 x 518.0mm)
Weight57.60kg ( 126.99 lbs)
GrilleYes
MartinLogan Depth 212 Alternatives in Powered Subwoofer Speakers
Model Frequency Woofer Amp Power Dimensions
Polk Monitor XT12
Compare
24-160k Hz 12" 50 watts 16-7/16inch x 16-1/16inch x 19-1/16inch "
SVS SB-1000 Pro
Compare
20-270k Hz 12" 325 watts 13-1/2inch x 13inch x 15-13/16inch "
B&W DB4S
Compare
10-350k Hz 10" 1000 watts 14-3/4 x 14-1/4 x 17-1/16inch"
Klipsch R-121SW
Compare
28-120k Hz 12" 200 watts 16-5/8inch x 16inch x 20-15/16inch "
Klipsch R-101SW
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30-160k Hz 10" 150 watts 14-9/16inch x 14-1/16inch x 20-13/16inch "
Klipsch RP-1200SW
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17-138k Hz 12" 400 watts 18-15/16inch x 17inch x 25-15/16inch "
KEF KC62
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11-200k Hz 6.5" 1000 watts 9-5/8inch x 10-1/8inch x 11-1/16inch "
Klipsch R-100SW
Compare
32-120k Hz 10" 150 watts 14-5/8 x 12-9/16 x 18-1/16inch"
Wharfedale SW-15
Compare
30-120k Hz 15" 400 watts 22-7/16inch x 19-3/8inch x 24-3/16inch "
Klipsch SPL-100
Compare
27-125k Hz 10" 200 watts 16-7/16 x 14-1/16 x 18-13/16inch"
B&W ASW610
Compare
27-140k Hz 10" 200 watts 12-5/8 x 12-1/4 x 15-1/2inch"
KEF KUBE 8b
Compare
34-140k Hz 8" 300 watts 11-9/16 x 11-5/8 x 13-5/16inch"
KEF KUBE 10b
Compare
24-140k Hz 10" 300 watts 14-5/8 x 14 x 15-5/8inch"
B&W ASW608
Compare
32-140k Hz 8" 200 watts 10-11/16 x 10-1/4 x 13-3/4inch"
JBL Stage A120P
Compare
32-150k Hz 12" 250 watts 16-5/16 x 15-7/16 x 18-11/16inch"
Klipsch SPL-120
Compare
24-125k Hz 12" 300 watts 17-11/16 x 14-3/4 x 21-1/4inch"
Frequently Asked Questions about MartinLogan Depth 212

How low can the MartinLogan Depth 212 go?

The MartinLogan Depth 212 has a frequency response of 18-120 Hz. It digs below 20Hz, the bottom limit of human hearing, so you get deep, physical bass you feel as much as hear.

How much power does the MartinLogan Depth 212 have?

The MartinLogan Depth 212 has a built-in 1100-watt RMS (2200-watt peak) Class D amplifier.

Is the MartinLogan Depth 212 sealed or ported?

The MartinLogan Depth 212 uses a Sealed enclosure. Sealed subwoofers trade a little output for tighter, more accurate bass and a smaller cabinet, which many listeners prefer for music.

What driver does the MartinLogan Depth 212 use?

The MartinLogan Depth 212 has a 2 x 12-inch Aluminium driver.

Does the MartinLogan Depth 212 have app control or room correction?

Yes. The MartinLogan Depth 212 offers phase control, letting you dial the sub into your room and blend it with your speakers.

How do you connect the MartinLogan Depth 212?

The MartinLogan Depth 212 connects via line-level Stereo RCA line, LFE, XLR, speaker level and speaker-level Yes inputs.

How big and heavy is the MartinLogan Depth 212?

The MartinLogan Depth 212 weighs 57.60kg / 126.7lbs and measures 21" x 19-13/16" x 20-3/8" (HxWxD).

How much does the MartinLogan Depth 212 cost?

The MartinLogan Depth 212 has a manufacturer's list price (MSRP) of $5,500.

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