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MTX Audio JackHammer JH5512-04

800W Max, 12" Single 4 ohm Jack Hammer JH55 Series Subwoofer

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12" JackHammer 55 Round Series Subwoofer • 800 watt Max • 400 watt RMS • Single 4 Ohm • Polypropylene Woofer • Rubber surround • Stitched Cone • Asymmetrical Linear Drive System • 70oz. Magnet • Precision Stamped Basket

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Product Highlights


12" JackHammer 55 Round Series Subwoofer • 800 watt Max • 400 watt RMS • Single 4 Ohm • Polypropylene Woofer • Rubber surround • Stitched Cone • Asymmetrical Linear Drive System • 70oz. Magnet • Precision Stamped Basket

Description


MTX brand icon

Authorized dealer

Authorized MTX Dealer
When you put the name JackHammer on any subwoofer, you've got a reputation to protect. Designed and engineered in the U.S.A., JackHammer subwoofers are made of high quality materials and are packed with features that put other subwoofers to shame.

The JackHammer series are loaded with features that make them rock. Both models feature rubber surrounds that are stitched directly to the cone for durability and have voice coils that are wound with 428° High Temperature wire to ensure that your JackHammer subs will keep pounding the streets as long as you want them to. Both levels also feature MTX's proprietary Spider Plateau Venting technology which helps push hot air out of the voice coil and bring cool air in, adding to the reliability of the subwoofer and keeping it cool even in the hottest cars. JackHammer series subwoofers also feature the Asymmetrical Linear Drive System that is featured on other MTX subwoofers which combines a flat progressive spider with an extended pole piece to reproduce smooth, linear motion for incredibly crisp, clean sound.

JH55 subwoofers have a black stamped basket design for structural strength, a stamped back panel with MTX's aggressive looking Gothic logo, and a large rubber boot create a powerful looking package that would make even your buddy's install in his '73 Ford pinto look cool.

  • 12" JackHammer 55 Round Series Subwoofer
  • Power Handling:
    • Peak: 800 watts
    • RMS: 400 watts
  • Impedance: Single 4 Ohm
  • Polypropylene woofer cone
  • Rubber surround
  • Stitched Cone for added durability and style
  • Precision Stamped Basket for greater structural integrity
  • FEA optimized roll geometry to maximize excursion without sacrificing cone surface area
  • ALDS Asymmetrical Linear Drive System with a flat progressive spider and extended pole piece for smooth, linear, piston like drive
  • Industry leading thermal power handling using 428° F High Temperature Voice Coil Wire
  • Industry leading Spider Plateau Venting cooling system cools at the voice coil
  • 1-3/4" Single voice coil
  • 70oz. Magnet structure
  • Frequency response: 31-150 Hz
  • Sensitivity: 86.7 dB
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Subwoofer Wiring Guide


Wiring Guide to Wire 1 MTX Audio JackHammer JH5512-04 Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 MTX Audio JackHammer JH5512-04 Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

Wiring Guide to Wire 3 MTX Audio JackHammer JH5512-04 Subwoofers

4 Channel Amp

Wiring Guide to Wire 4 MTX Audio JackHammer JH5512-04 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp


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Specifications & Details


Subwoofer Specifications
Subwoofer Size
12"
Peak Power Handling
800 watts
RMS Power Handling
400 watts
Voice Coil(s)
Single
Impedance (Per Voice Coil)
4 ohm
Frequency Response
31 - 150 Hz
Sensitivity
86.7 dB
Subwoofer Design
Round / Circle
Main Cone Color
Dark Gray
Woofer Composition
Polypropylene
Woofer Surround
Rubber
Subwoofer Grille
No
Re-Cone Kit Available
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Minimum Sealed Box Volume
1.25 cubic feet
Maximum Sealed Box Volume
1.25 cubic feet
Minimum Ported Box Volume
2.0 cubic feet
Maximum Ported Box Volume
2.0 cubic feet
Top-Mount Depth (Mounting Depth)
6-15/16"
Cutout Diameter
11-1/16"
Shallow Mount Installation
No
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

MTX

Model Number:

JH5512-04

Weight:

16.00lbs

Internal SKU:

jh551204

Internal Product ID:

14786

Product and How-to Videos


Customer Ratings & Reviews


MTX Audio JackHammer JH5512-04 thumbnail image

5 star
86%
4 star
14%
3 star
0%
2 star
0%
1 star
0%



Durability
4.7
Value
5
Features
5
Design
4.7
Usability
5

Customer Reviews

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good subs

i bought two of these and hooked them up to the hifonics brutus 1608d amp and they pound, they rattle my whole car, i can not even use my rear view mirror any more it just falls down an im lookin at my cup holder lol if your looking for a good quality sub i would give these a try, and if u are usin g the same amp i am running make sure ur gain is down a little or u will start to burn the voice coil, but even then these things will handle it and still pound

By Christopher on September 16, 2008

10 found this helpful


great sound!

I have two of these. Built my ported box exactly to spec and powered them with my MTX Jackhammer 600 d amp. Very loud. Very clean bass. Only downfall is the voicecoil snapped. Replaced under warranty. Smoked the new one after a few months.

By Bryce on November 21, 2012

6 found this helpful


Jackhammer

I have two of these and the slam! Best subs I've ever owned. Amazing subs, Excellent Brand, Outstanding Quality. Highly recommend.

By Austin on June 10, 2010

6 found this helpful


QUAKEN!!!

i have 2 of these babies in a ported box. hooked up to a kicker zx750.1 amp these suckers just keep asking for more. i recommend these highly. Great value shakes my whole car to pieces.

By Zach on September 17, 2010

5 found this helpful


DAMM

for anyone who doesnt want to have the same thing as over cars i would recommend these subs. i have two in a sealed box one facing in the other out and the rattle my car. your vision becomes unclear and your nose tickles and they hit you in the stomach. these subs have power very good.
my set up
2 mtx audio jackhammer jh5512-04
and for amp a ssl cruiser 2400 watt 2 channel
all under 500.00 great buy

By Gtk Shadow on May 29, 2009

5 found this helpful


amazing

i have 4 of these hooked up to 2 brutus 1610d in an extended cab silverado custom install by me...and maaan do they just shatter everything in my truck...cant even see straight when driving my truck..i would deffinatly recomend these

By jrod on July 1, 2009

4 found this helpful


Bass for days!!

Had 2 of these hooked up to a hyfonics amp!! The bass alone would rattle my windows and flex the body panels of my SUV!! Really wish they made these still!!!

By Josh on April 28, 2025 Checkmark Icon Verified purchase




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