Expert Service 1-661-257-9993 [Hours]

MA Audio HK15X2

15" Dual 2 ohm Hard Kore Series Car Subwoofer

Discontinued
|

We apologize

This item has been discontinued

Item Added to Cart

MA Audio HK15X2

15" Dual 2 ohm Hard Kore Series Car Subwoofer

$269.99

Keep Shopping

Get Added Peace of Mind with SquareTrade

Why SquareTrade?

  • The #1-Rated Protection Plan
  • 5-Day Service Guarantee & Free Shipping
  • Protection from Normal, Everyday Use
You have added a warranty
$32.99
Add Warranty
3 years of protection

25 ft. of Streetwires 12 Gauge Speaker Cable

You'll need speaker wire to hook up that new subwoofer!

$37.85

Add
20 Square Feet of Sound Dampening Material

NVX Sound dampening is thicker than competitors, eliminates rattles and gives you bigger bass!

$53.99

Add
2" Universal, Professional Heavy Duty Roller for Sound Damping/Dampening

Universal rubber roller to make it easy to install sound dampening.

$7.99

Add

Don't see the accessory you're looking for?
View all available accessories for the MA Audio HK15X2.

Get FAST answers from customers ASK a Question See questions answers

  • 15" Competition Subwoofer
  • Power Handling:
    • Peak: 4000 watts
    • RMS: 2000 watts
  • Dual Layer Pressed Carbon Fiber Cone
  • Reinforced Ribbed High Foam Treated Surround
  • Patented Thermo-Cooling Motor Structure
  • Bumped Back Plate For Maximum Excursion
  • Double Layer Progressive Spiders
  • Platinum Plated Block Terminals
  • Hi-Temp Kapton Voice Coil Former
  • Aluminum Round Wire Voice Coil
  • 260 oz. Double Stacked Strontium Magnets
  • Rubber Sealant Gasket
  • Die-Cast Basket
  • 2-year Manufacturer's warranty

Subwoofer Specifications

Subwoofer Series
Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
15"
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
4000 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
2000 watts
Voice Coil(s)
Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.
Dual
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
2 ohms
Voice Coil Diameter
Diameter of voice coil, usually measured in inches.
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
91 dB
Subwoofer Design
This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Main Cone Color
This is the color of the speaker's or subwoofer's cone.
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Carbon Fiber Cone
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Treated Foam
Magnet Structure
Defines the overall structure of the subwoofers magnet.
Subwoofer Grille
Most subwoofers are able to accommodate a universal grille; however, some subs include a grille and others have a specific, optional grille available for purchase separately. If "yes", then the subwoofer includes a grille. If "optional (sold separately)" the matching grille will need to be purchased in addition to the sub.
Re-Cone Kit Available
Some higher end subwoofers have replaceable cone assemblies. In case of a blown woofer, a recone kit allows for a simple replacement, as opposed to purchasing an entire new subwoofer.

Recommended Enclosure Specifications

Recommended Enclosure Type
This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed: These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented: These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass: These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

Minimum Sealed Box Volume
This value indicates the minimum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Optimum Sealed Box Volume
This value indicates the ideal sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Maximum Sealed Box Volume
This value indicates the maximum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Minimum Ported Box Volume
This value indicates the minimum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Optimum Ported Box Volume
This value indicates the ideal ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Maximum Ported Box Volume
This value indicates the maximum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
9-3/8"
Cutout Diameter
The actual diameter of the hole you will need to cut out if you are creating a new mounting location for this speaker, or if you are mounting a subwoofer in a box.
14.2"
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

Electromechanical Parameters

Free-Air Resonance (Fs)
The free-air resonance frequency of the subwoofer, measured in Hz. At this frequency the weight of the moving parts is perfectly balanced with the subwoofers suspension system.
Equivalent Compliance (Vas)
This is the amount of air that has the same stiffness as the subwoofers suspension. The greater the rating, the lower the stiffness and larger recommended enclosure. It is measured in Liters.
Total Speaker Q Value (Qts)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including all dimensionless losses. Essentially, a high Qts value (closer to 1.0) means the subwoofer is great for sealed enclosures and a low Qts value (closer to 0) means the woofer is great in vented enclosures. A Qts of around 0.45 means the woofer will work decently in either enclosure type.
Electrical Q Value (Qes)
The subwoofers relative damping (Q) at the resonance frequency (Fs), including electrical losses. Also called the mechanical damping of the subwoofer. The unitless measurement usually varies from 0.5 – 10.
Electrical Resistance of Voice Coil (Re)
Amount of DC resistance of the subwoofer when measured with an ohm meter. Typically, this will read less than the impedance rating of the subwoofer.
Mechanical Q Value (Qms)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including mechanical losses. Also called the mechanical damping of the subwoofer. This unitless measurement usually varies from 0.5 – 10.
Efficiency Bandwidth Product (EBP)
This number represents the trade off between having an efficient woofer and one with a wide bandwidth. To calculate this number, take the Fs and divide it by the Qes. If the number is below 50, the woofer is designed for a sealed enclosure only. If it's between 50-100 it can be used in either. Lastly, if it's greater than 100 it's designed for vented enclosures.

Specials with this Item

Promotions
Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
93%
4 Star
0%
3 Star
7%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.7
Value
4.9
Features
4.8
Design
4.8
Usability
4.9
Jaime

Maumee, OH

Overall
Durability
Value
Features
Design
Usability
huge!!!!!!!!!!

March 4, 2008

This sub is huge I never seen a magnet soo big I had a 15 Kicker L7 before but this out pounds it by far great buy.

J Med from T-town, oh we out!!!!!!!!!!

8 of 9 found this helpful

Was this review helpful to you?

Edward

Mishawaka, IN

Overall
Durability
Value
Features
Design
Usability
Great product

March 5, 2009

Excellent subwoofer that will blow you away. Bass response is unbelievable and this thing hits HARD. People will hear you from a mile away. It\'s not invincible however. I wound up running too much power to this beast and blew out the cone internally from the motor. Great sub. Get MA Audio!

7 of 8 found this helpful

Was this review helpful to you?

Patty

Summerfield, FL

Overall
Durability
Value
Features
Design
Usability
beast

March 26, 2008

I got this sub to go w/ another 15 and i only got it running at 1000 watts and it beats. I am selling my other 15 and buying a second of this. Its awesome. would recommend to anyone

6 of 7 found this helpful

Was this review helpful to you?

Zack

Charlotte, NC

Overall
Durability
Value
Features
Design
Usability
Amazing

April 23, 2008

Wow. I just received this sub from Sonic, and hooked it up 1 ohm to a Hifonics Brutus, and it slams like nothing else! This thing is massive, and is much heavier and larger than you'd think. Make sure you have dynamat or something similar, and have room for a 5^3ft box (ported), because it does require a lot of space and power.

5 of 6 found this helpful

Was this review helpful to you?

Antoine

Ellenwood, GA

Overall
Durability
Value
Features
Design
Usability
What a Monsta

April 10, 2008

I have two of these subs in a 4.0 cubic foot per port ported box which is a cubic foot less that whats is needed and 1000 watts rms @ two ohms and they are ripping my car into pieces without even flexing alot and you can tell that they could handle even more power.. Will more than likely get two more..... This was a great buy....

Money well worth it.....

I just wish they had a four ohm version!

5 of 6 found this helpful

Was this review helpful to you?

Andrew

Buffalo, NY

Overall
Durability
Value
Features
Design
Usability
WHOA!

April 9, 2008

I just got this in the mail today. All I have to say is whoa. The magnet alone weights as much as my previous 15. I cant wait to hook it up. This is a MUST BUY!!!

5 of 6 found this helpful

Was this review helpful to you?

jerome

Parkton, NC

Overall
Durability
Value
Features
Design
Usability
huge!!!!

February 21, 2008

Man I just got this sub in today this thing is a monster!!!! plus you cant go wrong with 4000 watts for $209 plus free shipping.... I'm going to order another one soon.

6 of 8 found this helpful

Was this review helpful to you?

Richard

Front Royal, VA

Overall
Durability
Value
Features
Design
Usability
Monstrous

February 21, 2008

Installed this with an 1200watt amp, 6 gauge wire all around (in parallel) in an *SEALED* box, and it's still capable of shaking me to the bone, literally, all the mirrors shake, the frame of the car flexes, your ears pop, it gets hard to breath.

I couldn't imagine this monster in an bandpass box, with it in an small sealed box, and the amp installed on the back of said box, it weighs around 70+lbs!!

Want awesome bass pounding potential at an affordable price? Jump on this then!

4 of 5 found this helpful

Was this review helpful to you?

Chris

Leominster, MA

Overall
Durability
Value
Features
Design
Usability
WOW

January 11, 2006

ok i just heard this thing today and all i can say is wow! this sub is soooo loud. my fridn bought it for his friend and he has it hooked up the MA audio 4000 watt class D amp and it is sooooooo loud. i heard him drive by my job the other day and i had no idea where the bass was coming from. he has it in a really small sealed box and the thing still slams! hes going to make a ported box for it but the thing is still amazing! highly recomened if u want to be heard from a mile away!

4 of 5 found this helpful

Was this review helpful to you?

Joseph

Port Charlotte, FL

Overall
Durability
Value
Features
Design
Usability
Very Good

August 2, 2005

I have 2 of these powered by the MA Audio HK802SX. These subs are great! I was looking for subs that could handle alot of watts, but at a lower price and I found it. I think I could get them to sound better, not the best ive heard but if you want something that will shatter your windows these will do it, it just needs ALOT of power!

5 of 7 found this helpful

Was this review helpful to you?

bob

New Bedford Mass

Overall
Durability
Value
Features
Design
Usability
Not that great

October 22, 2012

I bought my ma audio one month of having it, it blew I used it with a 6000 watt vector amp and the amp wasn't even half it full capacity and blew the sub sounds real good pounds hard but blew fast maybe I didn't let it brake in long enough but still with its power handling it shouldn't have happened.

3 of 4 found this helpful

Was this review helpful to you?

Mason

Peoa, UT

Overall
Durability
Value
Features
Design
Usability
DAM!!

April 10, 2008

wooow I cant even breath or see straight right now it might be because I was just listenen to this 4000 watt sub hooked to a 3000 watt poweracoustik amp it is insane. WARNING this will make earthquakes ha ha thats what it feels like!!

4 of 6 found this helpful

Was this review helpful to you?

justin

Dresden, TN

Overall
Durability
Value
Features
Design
Usability
Great

July 13, 2007

I had two of these in a sonoma with a 4400 watt MA amp and it hit harder than anything i have had or heard i would tell any one that wants something that sounds great and is really loud then get this sub.

3 of 4 found this helpful

Was this review helpful to you?

Michael

Englishtown, NJ

Overall
Durability
Value
Features
Design
Usability
WOW THIS IS A BEAST!!!

March 5, 2008

THIS SUB IS RIDICULOUS..HITS LIKE A ROCK..I HAVE HOOKED UP TO A 3000 POWER ACOUSTIK AMP THAT I BOUGHT FROM HERE TOO GIVING THE SUB 1800 WATTS RMS..I RECOMMEND THIS SUB TO ANYONE!!

3 of 5 found this helpful

Was this review helpful to you?

jose

conroe, TX

Overall
Durability
Value
Features
Design
Usability
dang!!!!!!!!!!!!!!!!!!!!!!!!!

July 13, 2007

i have 2 of these BEAST and THEY pound hard!!!they make all my windows shake but the bad part is i cant turn it all the way up cause they are 2 loud i recomend this cause they are BEAST!!! if u want awesome bass and pounding so people can here u miles away get these subwoofers

1 of 2 found this helpful

Was this review helpful to you?

Accessory Tools and Products

Accessories added

25 ft. of Streetwires 12 Gauge Speaker Cable

You'll need speaker wire to hook up that new subwoofer!

Your Price $37.85

Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

Your Price $14.99

20 Square Feet of Sound Dampening Material

NVX Sound dampening is thicker than competitors, eliminates rattles and gives you bigger bass!

Your Price $53.99

40 Square Feet of Sound Dampening Material

Thicker than the competition, complete sound damping kit for entire vehicle! Use for trunk, doors, roof and floor.

Your Price $97.99

Stinger Sound Dampening Trunk Kit

Stinger's Roadkill sound dampening series is sure to kill unwanted road noise and rattles! Enough sound dampening for your whole trunk!

Your Price $64.99

Stinger Sound Dampening Bulk Kit

Stinger's Roadkill sound dampening series is sure to kill unwanted road noise and rattles! Enough sound dampening for the whole car!

Your Price $94.97

Dynamat Sound Dampening Bulk Kit

Did you know sound dampening will reduce those annoying rattles and even increase your SPL?

Your Price $159.99

2" Universal, Professional Heavy Duty Roller for Sound Damping/Dampening

Universal rubber roller to make it easy to install sound dampening.

Your Price $7.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $18.99

Cordless Multi-Functional Heat Tool Soldering Iron Kit

Continuous working lock allows you to work without holding down trigger.

Your Price $74.99

12 oz. Can of Adhesive Spray

Spray adhesive used for adhering carpet to subwoofer boxes without bubbles.

Your Price $8.99

Gold Plated Dual Terminal Banana Plug Connector

Enables an expandable, secure connection accepting up to 8 gauge wire.

Your Price $1.99

Scosche SPL Meter

Monitor the noise level of your new car audio system with this SPL meter measuring from 60-135 dB.

Your Price $21.99

1 MA Audio HK15X2 Subwoofer

Mono Amp

Mono Amp - Option 1

2 Channel Amp - Bridged

2 MA Audio HK15X2 Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

3 MA Audio HK15X2 Subwoofers

Mono Amp

Mono Amp - Option 1

4 Channel Amp

4 MA Audio HK15X2 Subwoofers

2 Channel Amp

4 Channel Amp

Hide answersShow all answers | Sort by
No questions have been asked about this item. Be the first!

Product Summary

Manufacturer

Model Number

HK15X2

UPC

784620018620

Weight

45.00lbs

Internal SKU

hk15x2

Internal Product ID

4115

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: MA Audio HK15X2