Garage
Shop

See all parts that fit your 1978 Ramcharger

Massive Audio MGK124

1500W Peak (750W RMS) 12" MGK Series Dual 4-ohm Car Subwoofer

highlight-star-icon

• Peak Power: 1500 watts
• RMS Power: 750 watts
• Impedance: Dual 4 ohm
• Kevlar Reinforced Semi-Pressed Paper Cone
• Foam Surround
• Mount depth: 7.05"
• Sensitivity: 90.1 dB

Learn more about the mgk124

We apologize

This item has been discontinued


Loading...
Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers

122
-33.36%

$79.96

List price $119.99

Limited time!
46CSC6934 main

Kicker CSC693 (46CSC6934)

900W Peak (300W RMS) 6x9” CS Series 3 Way Coaxial 4-ohm Speakers with Integrated Midrange Speakers

40
-30.02%

$111.96

List price $159.99

43DSC6504 main

Kicker DSC650 (43DSC6504)

480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)

28
-10.53%

$84.99

List price $94.99

DB652 main

Polk Audio DB652 (DB 652)

600W Peak (200W RMS) 6.5" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers

12
-9.16%

$109.00

List price $119.99

Limited time!
Club 622 main

JBL Club 622

360W Peak (120W RMS) 6.5" Club Series 2-way Coaxial 3-ohm Speakers

5
-28.58%

$99.95

List price $139.95

MPK 163.3 main

Hertz MPK163.3

600W Peak (300W RMS) 6.5" Mille PRO Series 3-way 4-ohm Component Speaker System

2
-14.89%

$999.99

List price $1175.00

PNW-65CS2 main

AudioControl PNW-65CS2

250W Peak (200W RMS) 6.5″ PNW Series 2 Way Component 3-ohm Speakers

4
-5.90%

$319.00

List price $339.00

SXE-6926S main

Alpine SXE-6926S

280W Peak (90W RMS) 6x9” SXE Series 2-way 4-ohm Coaxial Speakers

13
-20.84%

$56.99

List price $71.99

NSP65 main

NVX NSP65

540W Peak (180W RMS) 6.5" N-Series 2 Way Coaxial Car Speakers

93
-35.19%

$69.99

List price $107.99

REF697F main

Infinity REF697F (INFSPKRF697FUS)

600W Peak (200W RMS) 6x9" Reference Series 2-Way Coaxial 4-ohm Speakers

5
-17.65%

$139.95

List price $169.95

Description


Massive Audio brand icon

Authorized dealer


MGK124

Massive Audio's MGK Series subwoofers are rated at 750 Watts RMS / 1500 Watts MAX power with a 2.5" voice coil configured for dual 4 ohm impedance. All MGK subs use tight Red stitching that’s sewn through a UV treated non-pressed paper cone onto a Pressed Foam surround. Then it’s bonded to a heavy gauge steel basket that’s bolted to double stacked High Flux Y30 120oz Strontium ferrite magnets with a 10mm top plate.

Then everything dances on a springy poly cotton spider with high powered woven tinsel leads that connect to spring loaded 5-way binding nickel plated speaker connectors. These woofers scream sound quality and truly represent Massive Audio's commitment to value and performance.


Product Details:

  • 12" Dual 4 ohm MGK Series Subwoofer
  • Power Handling:
    • Peak: 1500 watts
    • RMS: 750 watts
  • Kevlar Reinforced Semi-Pressed Paper Cone
  • Foam Surround
  • Heavy Gauge Cast Aluminum Basket with Industrial Texture Painting
  • Poly Cotton Spider with Woven Round Tinsel Leads
  • Round Shape PP Vacuum Dust Cap
  • 10mm Top Plate
  • Customized Rubber Gasket & Magnet Boot
  • 2.5" High Temperature Aluminum Voice coil
  • 15 mm Xmax
  • 120 oz. Double Stacked Ferrite Strontium magnet motor structure
  • Resonance Frequency (Fs): 32.2 Hz
  • Sensitivity: 90.1 dB
  • Recommended sealed box volume: 0.94 cubic feet
  • Recommended ported box volume: 1.38 cubic feet
  • Top-mount depth: 7.05"
  • Cutout diameter: 11.30"
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually

PDF IconMassive Audio MGK124 owner’s manual

Subwoofer Wiring Guide


Wiring Guide to Wire 1 Massive Audio MGK124 Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Massive Audio MGK124 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Massive Audio MGK124 Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 Massive Audio MGK124 Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp


Best selling similar products

Marine Club 12 small

JBL CB122 Club Marine 12

• Peak Power: 1200 watts
• RMS Power: 400 watts
• Polypropylene Cone
• Rubber Surround
• Impedance: Single 4 ohm
• Mount depth: 7-13/16"
• Sensitivity: 89 dB

(1)

$119.95

List price $379.95

VCW124v3 small

NVX VCW124 Version 3 (VCW124v3)

• Peak Power: 2400 watts
• RMS Power: 1200 watts
• Impedance: Dual 4 ohm
• Carbon Fiber Enhanced Non-Pressed Paper Cone
• Custom High Roll Foam Surround with black nylon stitching
• Mount depth: 7.02"
• Sensitivity: 85 dB (1W/1m)

(132)

$239.99

List price $287.99

12W6v3-D4 small

JL Audio 12W6v3-D4

• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Mineral-Filled Polypropylene Cone
• Butyl Rubber Surround
• Mount depth: 7.52"
• Sensitivity: 85.4 dB

(25)

$949.99

List price $949.99

SQW124 small

NVX SQW124

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 3.51"
• Sensitivity: 84 dB

$299.99

List price $359.99

P3D4-12 small

Rockford Fosgate Punch P3 P3D4-12

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Anodized Aluminum Cone
• Santoprene Rubber Surround
• Mount depth: 6.66"
• Sensitivity: 85 dB

(134)

$229.99

List price $259.99

SRX1240 small

Memphis SRX1240

• Peak Power: 500 watts
• RMS Power: 250 watts
• Impedance: Single 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 4.92"
• Sensitivity: 85 dB

$89.99

List price $139.95

SW-M12D2 small

Sundown Audio M-12 D2 12" (M12D2)

• Peak Power: 4000 watts
• RMS Power: 2000 watts
• Impedance: Dual 2 ohm
• Polypropylene Cone
• High Roll Foam Surround
• Mount depth: 10.88"
• Sensitivity: 80.6 dB

(1)

$599.99

List price $719.99

VCW122v3 small

NVX VCW122 Version 3 (VCW122v3)

• Peak Power: 2400 watts
• RMS Power: 1200 watts
• Impedance: Dual 2 ohm
• Carbon Fiber Enhanced Non-Pressed Paper Cone
• Custom High Roll Foam Surround with black nylon stitching
• Mount depth: 7.02"
• Sensitivity: 85 dB (1W/1m)

(94)

$239.99

List price $287.99

Stage 122 small

JBL Stage 122 (JBLSUBST122AM)

• Peak Power: 1000 watts
• RMS Power: 250 watts
• Impedance: Single 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 6"
• Sensitivity: 91 dB

$109.95

List price $129.95

YSW122 small

NVX YSW122

• Peak Power: 1600 watts
• RMS Power: 800 watts
• Impedance: Dual 2 ohm
• Enhanced Pressed Paper Cone
• High Roll Foam Surround
• Mount depth: 6.5"
• Sensitivity: 85 dB

(3)

$149.99

List price $227.99

Specifications & Details


Subwoofer Specifications
Series
MGK Series
Subwoofer Size
12"
Peak Power Handling
1500 watts
RMS Power Handling
750 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohm
Voice Coil Material
Aluminum
Voice Coil Diameter
2.5"
Sensitivity
90.1 dB
Xmax (millimeters)
15 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Kevlar Reinforced Semi-Pressed Paper
Woofer Surround
Foam
Magnet Structure
Double Stacked
Magnet weight
120 oz.
Magnet Type
Ferrite Strontium
Subwoofer Grille
No
Re-Cone Kit Available
No
CTA-2031 Compliant
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Optimum Sealed Box Volume
0.94 cubic feet
Optimum Ported Box Volume
1.38 cubic feet
Top-Mount Depth (Mounting Depth)
7.05"
Cutout Diameter
11.30"
Shallow Mount Installation
No
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
32.2 Hz
Equivalent Compliance (Vas)
35.7 liters
Total Speaker Q Value (Qts)
0.56
Electrical Q Value (Qes)
0.675
Mechanical Q Value (Qms)
3.3
What is in the box?
Paperwork
User manual
WITB: Subwoofers
Subwoofer
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

MGK124

Weight:

19.65lbs

Internal SKU:

mgk124

Internal Product ID:

202471

Customer Ratings & Reviews


Massive Audio MGK124 thumbnail image

5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
0
Value
0
Features
0
Design
0
Usability
0

Customer Reviews

Sort by:

Loading...

Amazing 12 inch Subwoofer!

4ohm Dual voice coil speaker we wired it to run at 2 ohms by itself as a single 12 and it pounds hard! We installed this 12 in my son's car and he loves it.

By Martin on December 30, 2024 Checkmark Icon Verified purchase




CMT-SBT100 small

Sony CMT-SBT100

Wireless Bluetooth NFX Micro Component System

$149.99

List price $199.99

MSP100W small

Diamond MSP100W (White)

Mini Rockers, Mobile Speakers for your Lap Top, MP3 Player, or Cell Phone

$32.99

List price $39.99

XQWE110T small

NVX XQWE110T Open Box

10" Ported Subwoofer Shallow Truck Box Made for NVX X-Series (XQW102/XQW104)

$49.99

List price $129.99

iX1 White small

MTX iX1 - White

On-Ear StreetAudio Headphones with Apple Mic/Remote, Daisy Chain Capability, and Tangle Free Cable

$129.99

List price $249.95

CS-MP77 small

Coby CS-MP77 (CSMP77) Desktop Laptop PC Computer MP3 Speakers

75 Watt 2.1 Channel High Performance Speaker System

(7)

$39.99

List price $59.99

Save up to 10 different vehicles in your garage
Vehicle
Store
Delete

2000 BMW 323i

1978 Dodge Ramcharger

2000 Lexus LS400

2017 Lexus RX450h

2012 Subaru Outback

2016 Ford Expedition

Add vehicle Clear all vehicles
Where to find vehicle info
Are you sure you want to clear your garage?
This action cannot be undone. Confirm
This page was not designed for products.
If you continue, you will be redirected to a category customized for your vehicle. Continue
Loading...
Identify your vehicle and submodel details
  • Owner's manual
  • Vehicle's insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon

Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.