Garage
Shop

See all parts that fit your 2001 Pathfinder

MTX 5512-44 (Open Box, Good)

800W Peak (400W RMS) 12" 55 Series Dual 4-ohm Car Subwoofer

MTX
Shop all MTX
Product videos
highlight-star-icon

• Peak Power: 800 watts
• RMS Power: 400 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 6.188"
• Sensitivity: 85.7 dB

Learn more about the ls-mtx-551244-u7

We apologize

This item has been discontinued

Product Highlights


• Peak Power: 800 watts
• RMS Power: 400 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 6.188"
• Sensitivity: 85.7 dB

Description


MTX brand icon

Authorized dealer

Item Condition - Open Box, Good:

This product is used, but it will work like new and is in overall good condition. It will show signs of wear that can include scuffing, scratches, fingerprints, dents, and worn corners or installation marks. May be missing non-essential parts, accessories or original packaging.


5512-44

The 55 Series, MTX's best selling subwoofer family, is a perfect mix of performance and value for enthusiasts that want to add extreme bass to their system without breaking the bank. MTX have squeezed an oversized cone into the standard 10", 12" and 15" frames, so the sub moves more air and gives you more bass. The woofer's movement cools the sub as it plays, so it doesn't overheat when you're rocking out. The special suspension exerts extra control when you're pushing the sub hard.

This subwoofer features the MTX Inverted Apex Surround. This is a departure from a traditional half roll surround. The Inverted Apex is narrower thereby increasing the surface diameter of the subwoofer cone enabling it to displace more air and generate higher SPL. The 55's are designed with a progressive suspension that lowers distortion resulting in improved sound quality even at high volume.

This subwoofer also incorporates Spider Plateau Venting which is a mechanical cooling process that targets cool air at the voice coil and a radial ribbed t-yoke that acts as a heat sink effectively managing the subwoofer temperature for long term rocking performance.


Product Details:

  • 12" Dual 4 ohm 55 Series Subwoofer
  • Power Handling:
    • Peak: 800 watts
    • RMS: 400 watts
  • Polypropylene Cone
  • Rubber Surround
  • Inverted apex surround for more air and higher SPL
  • Plateau venting for mechanical cooling process
  • Radial ribbed t-yoke as a heat sink to manage temperature
  • 2" High Temperature Voice coil
  • 15.24 mm Xmax
  • 56 oz. Double Stacked magnet motor structure
  • Frequency Response: 26 - 130 Hz
  • Resonance Frequency (Fs): 33 Hz
  • Sensitivity: 85.7 dB
  • Recommended sealed box volume: 1 cubic feet
  • Recommended ported box volume: 2.32 cubic feet
  • Top-mount depth: 6.188"
  • Cutout diameter: 11.125"
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually

PDF IconMTX MTX-551244 owner’s manual

Product history:

MTX 5512-44-2 thumbnail
(newest, current model)
MTX TR5512-44 thumbnail
(previous model, replaced by MTX 5512-44 (Open Box, Good))
MTX T5512-44 thumbnail
(previous model, replaced by MTX Audio TR5512-44)

Subwoofer Wiring Guide


Wiring Guide to Wire 1 MTX 5512-44 (Open Box, Good) Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 MTX 5512-44 (Open Box, Good) Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

Wiring Guide to Wire 3 MTX 5512-44 (Open Box, Good) Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 MTX 5512-44 (Open Box, Good) Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Specifications & Details


Subwoofer Specifications
Series
55 Series
Subwoofer Size
12"
Peak Power Handling
800 watts
RMS Power Handling
400 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohm
Voice Coil Diameter
2"
Frequency Response
26 - 130 Hz
Sensitivity
85.7 dB
Xmax (millimeters)
15.24 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Polypropylene
Woofer Surround
Rubber
Magnet Structure
Double Stacked
Magnet weight
56 oz.
Subwoofer Grille
No
Re-Cone Kit Available
No
CTA-2031 Compliant
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Optimum Sealed Box Volume
1 cubic feet
Optimum Ported Box Volume
2.32 cubic feet
Top-Mount Depth (Mounting Depth)
6.188"
Cutout Diameter
11.125"
Shallow Mount Installation
No
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
33 Hz
Equivalent Compliance (Vas)
54.1 liters
Total Speaker Q Value (Qts)
0.78
Electrical Q Value (Qes)
1.023
Electrical Resistance of Voice Coil (Re)
1.73 ohm
Mechanical Q Value (Qms)
3.282
What is in the box?
Paperwork
User manual
WITB: Subwoofers
Subwoofer
Mounting screws (4)
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

MTX

Model Number:

5512-44-2

Weight:

15.00lbs

Internal SKU:

ls-mtx-551244-u7

Internal Product ID:

229388

Product and How-to Videos


Customer Ratings & Reviews


MTX 5512-44 (Open Box, Good) thumbnail image

5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Reviews

Sort by:

Loading...
This item does not have any detailed reviews, but has 1 rating from customers


ZVX-12v2 D2 small

SKAR Audio ZVX-12v2 D2 OPEN BOX

1500W RMS 12" ZVX Series Dual 2 ohm Car Subwoofer

$369.99

List price $659.99

Save up to 10 different vehicles in your garage
Vehicle
Store
Delete

2001 Nissan Pathfinder

2007 Jaguar XJR

1986 GMC G1500

2014 Ford Explorer

1996 Cadillac DeVille

1979 Chevrolet Corvette

2006 Toyota Highlander

2014 Chevrolet Sonic

2009 Cadillac STS

2007 Cadillac SRX

Vehicle
Store
Delete

2000 Harley Davidson XLH883

Vehicle
Store
Delete

2014 Can-Am Commander 800R XT

Add vehicle Clear all vehicles
Where to find vehicle info
Are you sure you want to clear your garage?
This action cannot be undone. Confirm
This page was not designed for products.
If you continue, you will be redirected to a category customized for your vehicle. Continue
Loading...
Identify your vehicle and submodel details
  • Owner's manual
  • Vehicle's insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon

Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.