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MA Audio HK120XC

12" Dual 4 Ohms Competition Subwoofer

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MA Audio HK120XC

12" Dual 4 Ohms Competition Subwoofer

$119.99

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  • 12" Dual 4 Ohms Competition Subwoofer
  • Power Handling:
    • Peak: 1200 watts
    • RMS: 600 watts
  • Impedance: Dual 4 ohms
  • 240 oz. double stacked magnet structure
  • Mounting Depth: 6.5"
  • Mounting Diameter: 11.2"
  • Optimum Vented Box: 2 cu/ft
  • Round Port Diameter: (2) 4"
  • Square Port Area: 25 sq/in
  • Port Length: 16"
  • Optimum Sealed Box: 0.75 - 1 cu/ft
  • 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.
12"
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.
1200 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.
600 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.
4 ohms
Voice Coil Diameter
Diameter of voice coil, usually measured in inches.
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 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.
Ribbed Poly-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.
6-1/2"
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.
11-3/16"
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

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Warranty and Return Policy

Parts Warranty Duration
Not warranted
Labor Warranty Duration
Not warranted
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
75%
4 Star
25%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.8
Value
4.6
Features
4.6
Design
4.6
Usability
4.5
Jamie

St. Louis, MO

Overall
Durability
Value
Features
Design
Usability
Wow!

March 21, 2005

This sub pounds, simple as that. I haven't even heard its true potential yet. I have a hatchback box and it wouldn't fit in it so I had to invert it. I don't have a good amp yet either, I could only give it a 300w Kenwood amp and it hit pretty good, didn't quite get the lows, but for 300 watts it hit. We hooked it up in my friends car to a 500w rockford to try it out for a while and damn. Great sub.

7 of 8 found this helpful

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adam

devon, PA

Overall
Durability
Value
Features
Design
Usability
if you love bass, you'll love these

March 16, 2005

i had always heard good things about ma audio, so i decided to install two of these in my new system. and wow was i blown away..i have these inverted, to show off the awesome chrome baskets, and they still pound. with two of them bridged, each getting about 500 watts rms i've hit 142.3. needless to say impressive. i'm only getting rid of them because i'm upgrading to the 15's.

6 of 7 found this helpful

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trav

sterling, il

Overall
Durability
Value
Features
Design
Usability
12" ma sub

October 30, 2010

i have just one in my pt cruiser in a slot ported box (which is the best type of box for any sub) a pyle pla 2200 (1400w amp) and a rockford fosgate cap which can handle 1000w. this is the best system i've ever had. wish i did have a better amp to push the sub to it's full ability though. with the cheap amp and all the other stuff, it's still bows the back window a bit! only one problem with the sub------ i've had to reglue the center cap back on it.

4 of 5 found this helpful

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Charlene

Eden Prairie, MN

Overall
Durability
Value
Features
Design
Usability
Godly

February 20, 2008

I recently purchased two of these bad boys hooked up to a hifonics 1200 watt amp. good lord do they pound my little GTI. The highest of high bass notes and the bone shattering lows. For sure go ported with MA Audios! These things nearly scare me and I'm still just breaking them in! (bass remote currently set to 0) It's a real steal; I was sketched out at first but it turned out to be a godly set up. I recommend these puppies to anyone who wants serious power for their car at a price anyone could afford.

3 of 4 found this helpful

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martie

naples, FL

Overall
Durability
Value
Features
Design
Usability

December 7, 2007

i just bought 2 of these and man do they put out some power. a sealed box will work great with them. i made one myself and it looks and sounds great. dont let the price fool you. the only mistake i made which i will probably regret was buying a 650 watt amp instead of maybe a 550 or 600 watt. as long as you get the right amp it will definitely be worth buying these.

3 of 4 found this helpful

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Jonathan

Nacogdoches, TX

Overall
Durability
Value
Features
Design
Usability
Great Sub

February 27, 2007

Just hooked 2 of these up in a friends single cab truck on a 1200W amp and man they pound. Great sub packs a real punch. Well worth your money.

3 of 4 found this helpful

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Shawn

Fairbanks, AK

Overall
Durability
Value
Features
Design
Usability
Finally!

April 18, 2006

Finally a sub that takes what I give it. I listen to both rock and rap, although the bass isnt great with every songs (some rock I wish I had 10's, rap 15's) this has been the best sub I ever owned. I think I'm pushing 800 RMS to it, have a 1.2 farad cap, 105 amp alt. and plan on buying a bigger battery. Just a heads up for you do-it-yourselfers. Great price, great sub!

3 of 4 found this helpful

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Jason

Shoreview, MN

Overall
Durability
Value
Features
Design
Usability
NICE

April 13, 2005

This is a really nice woofer. I'm pushing it with 800 watts, and it still has no distrotion even at really high volumes. Handles the lows fairly well, although it could be better. Overall, very nice sub. Good step up from mid-level woofers. Still very nice.

3 of 4 found this helpful

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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

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

Dynamat Sound Dampening Trunk Kit

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

Your Price $94.95

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

1mm All Purpose Solder

Solder is all purpose for use on most projects where solder is needed.

Your Price $7.99

12 oz. Can of Adhesive Spray

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

Your Price $8.99

Spring Post Terminal Cup

Makes adding a spring post terminal to an enclosure simple! Banana clip ready!

Your Price $3.99

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 HK120XC Subwoofer

Mono Amp

2 Channel Amp - Bridged

2 MA Audio HK120XC Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

3 MA Audio HK120XC Subwoofers

Mono Amp

4 Channel Amp

4 MA Audio HK120XC Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

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Product Summary

Manufacturer

Model Number

HK120XC

UPC

784620018651

Weight

33.00lbs

Internal SKU

hk120xc

Internal Product ID

2731

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 HK120XC