Massive Audio 12" Car Subwoofers at Sonic Electronix
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Massive Audio 12" Car Subwoofers

Massive Audio 12" car subwoofers will provide your vehicle with the bass and lows that you desire.
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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.
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.
Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.
Refers to the diameter of the subwoofer, measured in inches.
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.
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.
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.
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.

This value indicates the minimum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
This value indicates the maximum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
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".
This is the color of the speaker's or subwoofer's cone.
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.

Typically measured in millimeters, the Xmax value is the measure of a speaker cone's maximum excursion in one direction while maintaining a linear behavior.
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Massive Audio KILOX122

12" 2000W Dual 2 Ohm Car Audio Subwoofer

KILOX122 main
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Massive Audio KILOX122

12" 2000W Dual 2 Ohm Car Audio Subwoofer

• 2000W Peak
• 1000W RMS
• Paper/ Woven Fiber Cones
• High Quality Tall Foam Surround
• Heavy Duty Cast Aluminum Basket

Massive Audio KILOX122

12" 2000W Dual 2 Ohm Car Audio Subwoofer

In stock

 
$234.99
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12" 2000W Dual 2 Ohm Car Audio Subwoofer

$234.99

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FREE NVX XMountPro Cell Phone Mount with Select Orders

Spend $200 and use code XMOUNTPRO to get this free!.

$14.99

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Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

$14.99

Add
20 Square Feet of Sound Dampening Material

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

$59.99

Add
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Massive Audio GTX124

1400W Max (700W RMS) 12" GTX Series Dual 4 Ohm Car Subwoofer

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Massive Audio GTX124

1400W Max (700W RMS) 12" GTX Series Dual 4 Ohm Car Subwoofer

• 1400 Watts Max
• 700 Watts RMS
• UV treated non-pressed paper cone
• EROM foam surround
• Hi-Temp Black Anodized 2.5" Voice Coil
• High powered woven tinsel leads
• Double stacked 120oz Strontium ferrite magnets

13
Massive Audio GTX124

1400W Max (700W RMS) 12" GTX Series Dual 4 Ohm Car Subwoofer

In stock

Only 2 Left!

$189.99 (17.90% off)
$155.99
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GTX 124 small

1400W Max (700W RMS) 12" GTX Series Dual 4 Ohm Car Subwoofer

$155.99

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FREE NVX XMountPro Cell Phone Mount with Select Orders

Spend $200 and use code XMOUNTPRO to get this free!.

$14.99

Add
12" Medium Sealed Subwoofer Enclosure

CARB Compliant, 3/4" MDF Dual Sealed Enclosure w/ Premium Carpeted Finish

$94.99

Add
Universal 12" Subwoofer Grille

Keep your subwoofer safe from accidental damages with this amazing grill.

$27.99

Add
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View all available accessories for the Massive Audio GTX124.
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Massive Audio GTX122

1400W Max (700W RMS) 12" GTX Series Dual 2 ohm Car Subwoofer

Use code "MASS20" at checkout for 20% off!

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Massive Audio GTX122

1400W Max (700W RMS) 12" GTX Series Dual 2 ohm Car Subwoofer

Use code "MASS20" at checkout for 20% off!

• 1400W Max
• 700W RMS
• UV Treated Non Pressed Paper
• EROM Surround
• Heavy Gauge Steel Basket
• Double Stacked Magnets
• Dual Voice Coils

13
Massive Audio GTX122

1400W Max (700W RMS) 12" GTX Series Dual 2 ohm Car Subwoofer

Use code "MASS20" at checkout for 20% off!

In stock

Only 2 Left!

$219.95 (31.81% off)
$149.99
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GTX122 small

1400W Max (700W RMS) 12" GTX Series Dual 2 ohm Car Subwoofer

$149.99

Keep Shopping
FREE NVX XMountPro Cell Phone Mount with Select Orders

Spend $200 and use code XMOUNTPRO to get this free!.

$14.99

Add
12" Medium Sealed Subwoofer Enclosure

CARB Compliant, 3/4" MDF Dual Sealed Enclosure w/ Premium Carpeted Finish

$94.99

Add
Universal 12" Subwoofer Grille

Keep your subwoofer safe from accidental damages with this amazing grill.

$27.99

Add
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View all available accessories for the Massive Audio GTX122.
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Massive Audio GTX 124R

2000W Max (1000W RMS) 12" GTX Series Dual 4 Ohm Car Subwoofer (GTX124R)

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Massive Audio GTX 124R

2000W Max (1000W RMS) 12" GTX Series Dual 4 Ohm Car Subwoofer (GTX124R)

• 2000 Watts Max
• 1000 Watts RMS
• UV treated Non-Pressed Paper Cone
• EROM Foam Surround
• 3" four layered Dual 4 Ohm Anodized Aluminum Voice Coil
• Heavy gauge Steel Basket with Industrial Texture Painting
• Dual stacked 150oz Strontium Magnets

Massive Audio GTX 124R

2000W Max (1000W RMS) 12" GTX Series Dual 4 Ohm Car Subwoofer (GTX124R)

Special order

Ships at Later Date

$264.99 (20.76% off)
$209.99
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GTX 124R small

2000W Max (1000W RMS) 12" GTX Series Dual 4 Ohm Car Subwoofer (GTX124R)

$209.99

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FREE NVX XMountPro Cell Phone Mount with Select Orders

Spend $200 and use code XMOUNTPRO to get this free!.

$14.99

Add
12" Dual Sealed Subwoofer Enclosure

CARB Compliant, 3/4" MDF Dual Vented Enclosure w/ Premium Carpeted Finish

$94.99

Add
Universal 12" Subwoofer Grille

Keep your subwoofer safe from accidental damages with this amazing grill.

$27.99

Add
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View all available accessories for the Massive Audio GTX 124R.
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Massive Audio TKO 12S4

600W Max (300W RMS) 12" TKO Series Single 4 Ohm Car Subwoofer

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Massive Audio TKO 12S4

600W Max (300W RMS) 12" TKO Series Single 4 Ohm Car Subwoofer

• 600 Watts Max
• 300 Watts RMS
• Laminated Paper Cone
• Pressed Foam Surround
• Steel Basket
• Poly Cotton Spider
• High Impedence Aluminum Former with EISV Voice Coil

Massive Audio TKO 12S4

600W Max (300W RMS) 12" TKO Series Single 4 Ohm Car Subwoofer

In stock

$139.95 (32.13% off)
$94.99
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TKO12S4 small

600W Max (300W RMS) 12" TKO Series Single 4 Ohm Car Subwoofer

$94.99

Keep Shopping
FREE NVX XMountPro Cell Phone Mount with Select Orders

Spend $200 and use code XMOUNTPRO to get this free!.

$14.99

Add
Universal 12" Subwoofer Grille

Keep your subwoofer safe from accidental damages with this amazing grill.

$27.99

Add
NVX 25 ft. of True Spec 12 Gauge Speaker Wire

100% OFC wire with EnvyFlex metallic jacket insulates and protects against damage from extreme conditions.

$29.99

Add
Don't see the accessory you're looking for?
View all available accessories for the Massive Audio TKO 12S4.
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Massive Audio TKO124

600W Max (300W RMS) 12" TKO Series Dual 4 Ohm Car Subwoofer

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Massive Audio TKO124

600W Max (300W RMS) 12" TKO Series Dual 4 Ohm Car Subwoofer

• 600 Watts Max
• 300 Watts RMS
• CEA 2031 compliant
• Laminated Paper Cone
• Pressed Foam Surround
• High Impedance Aluminum Former with EISV Voice Coil
• Heavy Gauge Steel Basket with Industrial Texture Painting

1
Massive Audio TKO124

600W Max (300W RMS) 12" TKO Series Dual 4 Ohm Car Subwoofer

In stock

$139.95 (32.13% off)
$94.99
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Item Added to Cart

TKO124 small

600W Max (300W RMS) 12" TKO Series Dual 4 Ohm Car Subwoofer

$94.99

Keep Shopping
FREE NVX XMountPro Cell Phone Mount with Select Orders

Spend $200 and use code XMOUNTPRO to get this free!.

$14.99

Add
Universal 12" Subwoofer Grille

Keep your subwoofer safe from accidental damages with this amazing grill.

$27.99

Add
NVX 25 ft. of True Spec 12 Gauge Speaker Wire

100% OFC wire with EnvyFlex metallic jacket insulates and protects against damage from extreme conditions.

$29.99

Add
Don't see the accessory you're looking for?
View all available accessories for the Massive Audio TKO124.
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Massive Audio KILOX122 + 12" Sealed Subwoofer Enclosure

12" 2000W Dual 2 Ohm Car Audio Subwoofer

KILOX122, MDFS1215 main
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Massive Audio KILOX122 + 12" Sealed Subwoofer Enclosure

12" 2000W Dual 2 Ohm Car Audio Subwoofer

• 2000W Peak
• 1000W RMS
• Paper/ Woven Fiber Cones
• High Quality Tall Foam Surround
• Heavy Duty Cast Aluminum Basket

48
Massive Audio KILOX122 + 12" Sealed Subwoofer Enclosure

12" 2000W Dual 2 Ohm Car Audio Subwoofer

In stock

 
$294.99
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KILOX122, MDFS1215 small

12" 2000W Dual 2 Ohm Car Audio Subwoofer

$294.99

Keep Shopping
FREE NVX XMountPro Cell Phone Mount with Select Orders

Spend $200 and use code XMOUNTPRO to get this free!.

$14.99

Add
Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

$14.99

Add
20 Square Feet of Sound Dampening Material

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

$59.99

Add
Don't see the accessory you're looking for?
View all available accessories for the Massive Audio KILOX122 + 12" Sealed Subwoofer Enclosure.
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Massive Audio HIPPO XL 122R (HIPPOXL122R)

6000W Max (3000W RMS) 12" Hippo XL Series CEA 2031 Compliant Dual 2-Ohm Car Subwoofer

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Massive Audio HIPPO XL 122R (HIPPOXL122R)

6000W Max (3000W RMS) 12" Hippo XL Series CEA 2031 Compliant Dual 2-Ohm Car Subwoofer

• Peak Power: 6000W
• RMS Power: 3000W
• Kevlar Fiber Non-Pressed Paper Cones
• Tall and Narrow Foam Surround

6
Massive Audio HIPPO XL 122R (HIPPOXL122R)

6000W Max (3000W RMS) 12" Hippo XL Series CEA 2031 Compliant Dual 2-Ohm Car Subwoofer

In stock

$839.95 (22.02% off)
$654.99
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2 Special offers
  • Get a FREE Pro Series Ported Enclosure with Purchase!
  • Get a FREE Sealed Enclosure with Your JL Subwoofer Purchase!
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HIPPOXL122R small

6000W Max (3000W RMS) 12" Hippo XL Series CEA 2031 Compliant Dual 2-Ohm Car Subwoofer

$654.99

Keep Shopping
FREE NVX XMountPro Cell Phone Mount with Select Orders

Spend $200 and use code XMOUNTPRO to get this free!.

$14.99

Add
Universal 12" Subwoofer Grille

Keep your subwoofer safe from accidental damages with this amazing grill.

$27.99

Add
Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

$14.99

Add
Don't see the accessory you're looking for?
View all available accessories for the Massive Audio HIPPO XL 122R (HIPPOXL122R).
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Massive Audio SUMMOXL124

12" 3000W Max (1500W RMS) Dual 4 Ohm Car Audio Subwoofer

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Massive Audio SUMMOXL124

12" 3000W Max (1500W RMS) Dual 4 Ohm Car Audio Subwoofer

• Peak Power: 3000W
• RMS Power: 1500W
• Kevlar Fiber Enhanced Non-Pressed Paper Cone
• EROM Foam Surround with Red Stitching

6
Massive Audio SUMMOXL124

12" 3000W Max (1500W RMS) Dual 4 Ohm Car Audio Subwoofer

In stock

Only 2 Left!

$549.95 (23.63% off)
$419.99
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2 Special offers
  • You'll Need an Enclosure with Your Subwoofer Purchase!
  • Add a Pro Series Ported Enclosure to Your Sub Purchase!
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Item Added to Cart

SUMMOXL124 small

12" 3000W Max (1500W RMS) Dual 4 Ohm Car Audio Subwoofer

$419.99

Keep Shopping
FREE NVX XMountPro Cell Phone Mount with Select Orders

Spend $200 and use code XMOUNTPRO to get this free!.

$14.99

Add
Universal 12" Subwoofer Grille

Keep your subwoofer safe from accidental damages with this amazing grill.

$27.99

Add
Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

$14.99

Add
Don't see the accessory you're looking for?
View all available accessories for the Massive Audio SUMMOXL124.
View all Accessories
Massive Audio MMA124

1000W Max (500W RMS) 12" MMA Series Dual 4 Ohm Car Subwoofer

MMA124 main
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Massive Audio MMA124

1000W Max (500W RMS) 12" MMA Series Dual 4 Ohm Car Subwoofer

• 1000 Watts Max
• 500 Watts RMS
• Laminated Pressed Paper Cone
• Pressed Foam Surround
• Heavy Gauge Steel Basket
• 2.5" Dual Voice Coil
• Poly cotton spider

1
Massive Audio MMA124

1000W Max (500W RMS) 12" MMA Series Dual 4 Ohm Car Subwoofer

OUT OF STOCK

$189.95 (36.83% off)
$119.99
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Item Added to Cart

MMA124 small

1000W Max (500W RMS) 12" MMA Series Dual 4 Ohm Car Subwoofer

$119.99

Keep Shopping
FREE NVX XMountPro Cell Phone Mount with Select Orders

Spend $200 and use code XMOUNTPRO to get this free!.

$14.99

Add
12" Medium Sealed Subwoofer Enclosure

CARB Compliant, 3/4" MDF Dual Sealed Enclosure w/ Premium Carpeted Finish

$94.99

Add
Universal 12" Subwoofer Grille

Keep your subwoofer safe from accidental damages with this amazing grill.

$27.99

Add
Don't see the accessory you're looking for?
View all available accessories for the Massive Audio MMA124.
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Massive Audio UFO12

600W 12" UFO Series Dual 4 ohm Car Subwoofer

Use code "MASS20" at checkout for 20% off!

UFO12 main
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Massive Audio UFO12

600W 12" UFO Series Dual 4 ohm Car Subwoofer

Use code "MASS20" at checkout for 20% off!

• Peak Power: 600W
• RMS Power: 300W
• IMPP Cone
• Pressed Foam Surround

Massive Audio UFO12

600W 12" UFO Series Dual 4 ohm Car Subwoofer

Use code "MASS20" at checkout for 20% off!

OUT OF STOCK

$169.99 (23.53% off)
$129.99
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UFO12 small

600W 12" UFO Series Dual 4 ohm Car Subwoofer

$129.99

Keep Shopping
FREE NVX XMountPro Cell Phone Mount with Select Orders

Spend $200 and use code XMOUNTPRO to get this free!.

$14.99

Add
Universal 12" Subwoofer Grille

Keep your subwoofer safe from accidental damages with this amazing grill.

$27.99

Add
Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

$14.99

Add
Don't see the accessory you're looking for?
View all available accessories for the Massive Audio UFO12.
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Massive Audio ECO12S4

500W Max (250W RMS) 12" ECO Series Single 4 Ohm Car Subwoofer

Use code "MASS20" at checkout for 20% off!

ECO12S4 main
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Massive Audio ECO12S4

500W Max (250W RMS) 12" ECO Series Single 4 Ohm Car Subwoofer

Use code "MASS20" at checkout for 20% off!

• 500 Watts Max
• 250 Watts RMS
• Laminated Paper Cone
• Pressed Foam Surround
• Heavy Gauge Steel Basket with Industrial Texture Painting
• High Impedance Aluminum Former with EISV Voice Coil

3
Massive Audio ECO12S4

500W Max (250W RMS) 12" ECO Series Single 4 Ohm Car Subwoofer

Use code "MASS20" at checkout for 20% off!

OUT OF STOCK

$94.95 (36.82% off)
$59.99
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Item Added to Cart

ECO12S4 small

500W Max (250W RMS) 12" ECO Series Single 4 Ohm Car Subwoofer

$59.99

Keep Shopping
FREE NVX XMountPro Cell Phone Mount with Select Orders

Spend $200 and use code XMOUNTPRO to get this free!.

$14.99

Add
Universal 12" Subwoofer Grille

Keep your subwoofer safe from accidental damages with this amazing grill.

$27.99

Add
NVX 25 ft. of True Spec 12 Gauge Speaker Wire

100% OFC wire with EnvyFlex metallic jacket insulates and protects against damage from extreme conditions.

$29.99

Add
Don't see the accessory you're looking for?
View all available accessories for the Massive Audio ECO12S4.
View all Accessories
Massive Audio KILOX124

12" 2000W Dual 4 Ohm Car Audio Subwoofer

KILOX124 main
Go to item page
Massive Audio KILOX124

12" 2000W Dual 4 Ohm Car Audio Subwoofer

• 2000W Peak
• 1000W RMS
• Paper/ Woven Fiber Cones
• High Quality Tall Foam Surround
• Heavy Duty Cast Aluminum Basket

1
Massive Audio KILOX124

12" 2000W Dual 4 Ohm Car Audio Subwoofer

OUT OF STOCK

 
$234.99
Hide info
More info Item page
Add to Cart
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Item Added to Cart

KILOX124 small

12" 2000W Dual 4 Ohm Car Audio Subwoofer

$234.99

Keep Shopping
FREE NVX XMountPro Cell Phone Mount with Select Orders

Spend $200 and use code XMOUNTPRO to get this free!.

$14.99

Add
Universal 12" Subwoofer Grille

Keep your subwoofer safe from accidental damages with this amazing grill.

$27.99

Add
Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

$14.99

Add
Don't see the accessory you're looking for?
View all available accessories for the Massive Audio KILOX124.
View all Accessories
Massive Audio HIPPOXL122

12" 4000W Max (2000W RMS) Dual 2 Ohm Car Audio Subwoofer

HIPPOXL122 main
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Massive Audio HIPPOXL122

12" 4000W Max (2000W RMS) Dual 2 Ohm Car Audio Subwoofer

• 4000W Peak
• 2000W RMS
• Woven Fiber Non-Pressed Paper Cone
• Heavy Die-Cast Alloy Baskets
• Heavy Duty Direct Input Wired Connection to Voice Coils

11
Massive Audio HIPPOXL122

12" 4000W Max (2000W RMS) Dual 2 Ohm Car Audio Subwoofer

OUT OF STOCK

$599.99 (30.00% off)
$419.99
Hide info
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Item Added to Cart

HIPPOXL122 small

12" 4000W Max (2000W RMS) Dual 2 Ohm Car Audio Subwoofer

$419.99

Keep Shopping
FREE NVX XMountPro Cell Phone Mount with Select Orders

Spend $200 and use code XMOUNTPRO to get this free!.

$14.99

Add
Universal 12" Subwoofer Grille

Keep your subwoofer safe from accidental damages with this amazing grill.

$27.99

Add
Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

$14.99

Add
Don't see the accessory you're looking for?
View all available accessories for the Massive Audio HIPPOXL122.
View all Accessories
Massive Audio HIPPO XL 124

4000W Max (2000W RMS) 12" Hippo XL Series Dual 4 ohm Car Subwoofer

HIPPOXL 124 main
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Massive Audio HIPPO XL 124

4000W Max (2000W RMS) 12" Hippo XL Series Dual 4 ohm Car Subwoofer

• 4000 Watts Max
• 2000 Watts RMS
• Kevlar Fiber Reinforced Non-Pressed Paper Cone
• Pressed Foam Surround
• Cast Aluminum Basket
• Mirror Image Poly/Nomex Spiders
• Direct Wired Terminals

Massive Audio HIPPO XL 124

4000W Max (2000W RMS) 12" Hippo XL Series Dual 4 ohm Car Subwoofer

OUT OF STOCK

$599.00 (36.56% off)
$379.99
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HIPPOXL 124 small

4000W Max (2000W RMS) 12" Hippo XL Series Dual 4 ohm Car Subwoofer

$379.99

Keep Shopping
FREE NVX XMountPro Cell Phone Mount with Select Orders

Spend $200 and use code XMOUNTPRO to get this free!.

$14.99

Add
Universal 12" Subwoofer Grille

Keep your subwoofer safe from accidental damages with this amazing grill.

$27.99

Add
Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

$14.99

Add
Don't see the accessory you're looking for?
View all available accessories for the Massive Audio HIPPO XL 124.
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Massive Audio 12" Car Subwoofers Information

Massive Audio carries a range of 12" car subwoofers for the bass you've been looking for. Massive Audio engineers competition grade subwoofers that will both satisfy and last. Great for subwoofer boxes and other installations, these 12" Massive Audio subs are an easy choice.
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