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MTX Audio JackHammer JH5512-04

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

5.0

(5 reviews)

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The product on this page is discontinued.
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 Specifications
Subwoofer Size12"
Peak Power Handling800 watts
RMS Power Handling400 watts
Voice Coil(s)Single
Impedance (Per Voice Coil)4 ohms
Frequency Response31 - 150 Hz
Sensitivity86.7 dB
Xmax (millimeters)N/A
Subwoofer DesignRound / Circle
Main Cone ColorDark Gray
Woofer CompositionPolypropylene
Woofer SurroundRubber
Subwoofer GrilleNo
Re-Cone Kit AvailableNo
Recommended Enclosure Specifications
Recommended Enclosure TypePorted / Vented
Sealed
Minimum Sealed Box Volume1.25 cubic feet
Maximum Sealed Box Volume1.25 cubic feet
Minimum Ported Box Volume2.0 cubic feet
Maximum Ported Box Volume2.0 cubic feet
Top-Mount Depth6-15/16"
Cutout Diameter11-1/16"
Shallow Mount InstallationNo
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration1 year
Labor Warranty Duration1 year
Warranty ProviderManufacturer
Customer Review Summary for MTX Audio JackHammer JH5512-04
Average Customer Rating is 5.0 out of 5 stars:
5.0
based on 5 Reviews
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4 star:
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3 star:
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1 star:
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what's this?
Average Attributes Rating:
Durability
5.0
Value
5.0
Features
5.0
Design
4.6
Usability
5.0
what's this?
Most Helpful Customer Reviews:
September 17, 2010 QUAKEN!!!
Review by
Zach from los angeles, ca
Overall
Durability
Value
Features
Design
Usability
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.
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June 10, 2010 Jackhammer
Review by
Austin from Bloomington, IL
Overall
Durability
Value
Features
Design
Usability
I have two of these and the slam! Best subs I've ever owned. Amazing subs, Excellent Brand, Outstanding Quality. Highly recommend.
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July 1, 2009 amazing
Review by
jrod from newbury park, california
Overall
Durability
Value
Features
Design
Usability
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
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May 29, 2009 DAMM
Review by
Gtk Shadow from lexington, NE
Overall
Durability
Value
Features
Design
Usability
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
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September 16, 2008 good subs
Review by
Christopher from McKeesport, PA
Overall
Durability
Value
Features
Design
Usability
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
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Subwoofer Grilles
Protect your subwoofer while making your enclosure look great! These subwoofer grilles are the perfect addition to your new subwoofer.
 ProductPriceAdd?
12" Universal Subwoofer Grille12" Universal Subwoofer Grille
Protect your subwoofer with this aluminum grille that is simple to install.
$9.99
Speaker Wire
Choose from our recommended speaker wire to hook up your amplifier to your new subwoofer. The higher quality of speaker wire that it used for this connection, the better your subwoofer will sound.
 ProductPriceAdd?
15 ft. of 12 AWG StreetWires Speaker Wire15 ft. of 12 AWG StreetWires Speaker Wire
This SuperCable from StreetWires is a noise free link between your amplifier and your subwoofer.
$19.99
50 ft. of 12 AWG Monster 302 XLN+ Speaker Cable50 ft. of 12 AWG Monster 302 XLN+ Speaker Cable
Monsters exclusive SingleHelix® and XLN® construction result in excellent sound reproduction.
$35.00
Sound Dampening Material
Get the most sound out of your new subwoofer with some high quality sound dampening material. It will keep the road noise out and the music inside the car.
 ProductPriceAdd?
Dynamat Rubber RollerDynamat Rubber Roller
Install your Dynamat with ease! This heavy duty rubber roller is designed specifically to install your Dynamat!
$18.99
Dynamat Extreme Bulk PackDynamat Extreme Bulk Pack
36 ft. Dynamat Xtreme Bulk Pack enhances the sound for your entire car!
$149.99
Enclosure Accessories
These accessories are designed to help you build the custom enclosure that you have always wanted, or add to the box that you already bought. Either way, these products can assist you in achieving better sound, better looks, and more bass!
 ProductPriceAdd?
20 oz. Bag of Poly-Fil20 oz. Bag of Poly-Fil
Polyester fiber fiberfill adds better bass to your system.
$5.99
16 oz. Can of Adhesive Spray16 oz. Can of Adhesive Spray
Spray adhesive used for adhering carpet to subwoofer boxes without bubbles.
$5.99
Spring Post Terminal CupSpring Post Terminal Cup
Makes adding a spring post terminal to an enclosure simple! Banana clip ready!
$2.99
Binding Post Terminal CupBinding Post Terminal Cup
Use this to easily install a binding post terminal to your subwoofer enclosure.
$2.99
Banana Clip TerminalsBanana Clip Terminals
These high grade banana clips allow you to plug into your banana clip ready terminal for a secure connection.
$4.99
System Optimization and Tuning
Use these items to assist in testing and tuning your new car audio system to perfection!
 ProductPriceAdd?
AutoSound 2000 CD-101AutoSound 2000 CD-101
Low frequency test CD
$12.99
AutoSound 2000 CD-102AutoSound 2000 CD-102
High frequency test CD specifically designed for the set-up and evaluation of sound system imaging and placement.
$12.99
AutoSound 2000 CD-103AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.
$12.99

For more information on wiring subwoofers, visit our Subwoofer Wiring Guide: Subwoofer Wiring Guide

Product Summary

Manufacturer: MTX
Model number: JH5512-04
UPC: 715442351640
Weight: 16.00 lbs
Internal SKU: jh551204
Internal product ID: 14786
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Customer Testimonial

Just recently bought MTX Thunders for my accord and it sounds great! My order came earlier than i expected and in no time it was at my doorstep. The quality of the sound was awesome and i most definately recommend anyone to SonicElectronix!

- Mark from Woodbridge, VA

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