Garage
Shop

See all parts that fit your 2008 MKX

Polk Audio MM1242 SVC (MM1242SVC)

1260W Peak (420W RMS) 12" MM1 Series Single 4-ohm Marine Subwoofer

Polk Audio
Shop all Polk Audio
Product videos
highlight-star-icon

• Peak Power: 1260 watts
• RMS Power: 420 watts
• Impedance: Single 4 ohm
• Composite Polypropylene Cone - CPPC
• Santoprene Rubber surround
• Mount depth: 4.64"
• Sensitivity: 87 dB

Learn more about the mm1242svc

We apologize

This item has been discontinued

NVX - Worth the Envy - Direct to Consumer Car Audio

Loading...
CR-6 main

American International CR-6

Connect Factory Antenna to New Aftermarket Radio in select 2002-2020 vehicles from Ford, Chevrolet, GMC

39
-73.38%

$3.99

List price $14.99

99-5815 main

Metra 99-5815

Single DIN or Double DIN Stereo Dash Kit for select 2006-2014 vehicles from Lincoln, Ford

21
-42.87%

$19.99

List price $34.99

HRN-HRR-FO1 main

iDataLink Maestro HRN-HRR-FO1 Wiring Harness

Install a New Car Stereo and Retain Steering Wheel Controls and Other Factory Features in select 2006-2016 vehicles from Ford, Lincoln, Mercury

-18.27%

$84.99

List price $103.99

SWRFD-60L main

Crux SWRFD-60L Wiring Interface

Install new car stereo and retains steering wheel audio controls and other factory features in select 2003-2012 vehicles from Ford, Lincoln, Mercury

8
-35.71%

$85.05

List price $132.30

DMH-1800NEX main

Pioneer DMH-1800NEX

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto, and SiriusXM Ready

3
-19.05%

$339.99

List price $420.00

Limited time!
DMX709S main

Kenwood eXcelon DMX709S

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto (Sirius XM Ready)

20
-33.50%

$399.00

List price $600.00

Limited time!
DMX809S main

Kenwood eXcelon DMX809S

6.8” Double DIN Digital Multimedia Touchscreen Bluetooth Receiver with Wireless Apple CarPlay and Android Auto (SiriusXM Ready)

11
-37.63%

$499.00

List price $800.00

Limited time!
KW-V660BT main

JVC KW-V660BT

6.8" Double DIN CD/DVD Receiver with Bluetooth, Apple CarPlay, Android Auto (Sirius XM Ready)

10
-16.70%

$399.00

List price $479.00

ADS-MRR main

iDataLink Maestro RR Interface Module

Universal Stereo Replacement Interface Module for iDataLink Maestro Compatible Stereos

36
-17.39%

$189.99

List price $229.99

Product Highlights


• Peak Power: 1260 watts
• RMS Power: 420 watts
• Impedance: Single 4 ohm
• Composite Polypropylene Cone - CPPC
• Santoprene Rubber surround
• Mount depth: 4.64"
• Sensitivity: 87 dB

Description


Polk Audio brand icon

Authorized dealer


Polk Audio MM1242 SVC

MM1 Series subwoofers were conceived, designed and engineered to deliver premium audio with thunderous bass, enhanced sonic detail and ultra-durable construction. Dynamic Balance technology, a high excursion bump stack motor structure, glass fiber formers, multilayered and oversized voice coils, high-temp Conex spiders, a vented pole and basket structure, and integrated fuses combine for full-on powerful sound, no matter what vehicle you’re in.


Product Details:

  • 12" Single 4 ohm Polk Audio MM1 Series Subwoofer
  • Power Handling:
    • Peak: 1260 watts
    • RMS: 420 watts
  • IP56 water-resistant and dirt-resistant rating
  • Weep holes for tough marine and outdoor applications
  • Tested for salt-fog, UV and humidity
  • UV-tolerant Composite Polypropylene Cone - CPPC
  • Santoprene Rubber surround
  • Non-corrosive PA66 polyamide nylon basket and vented pole
  • Oversized multilayer voice coil
  • Dynamic Balance technology
  • Glass fiber former
  • High excursion bump stack motor structure
  • Frequency Response: 26 - 200 Hz
  • Sensitivity: 87 dB
  • Recommended sealed box volume: 1.25 cubic feet - 3.5 cubic feet
  • Recommended ported box volume: 1.75 cubic feet - 2.25 cubic feet
  • Top-mount depth: 4.64"
  • Cutout diameter: 11"
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually

PDF IconPolk Audio MM1242SVC owner’s manual

Product history:

Polk Audio MM1242 SVC thumbnail
(newest, current model)
Polk Audio MM1240DVC thumbnail
(previous model, replaced by Polk Audio MM1242 SVC (MM1242SVC))
Polk Audio MM2124DVC thumbnail
(previous model, replaced by Polk Audio MM1240DVC)

Subwoofer Wiring Guide


Wiring Guide to Wire 1 Polk Audio MM1242 SVC (MM1242SVC) Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Polk Audio MM1242 SVC (MM1242SVC) Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Polk Audio MM1242 SVC (MM1242SVC) Subwoofers

4 Channel Amp

Wiring Guide to Wire 4 Polk Audio MM1242 SVC (MM1242SVC) Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp


Loading...
REF507CF_2_MET-825601_2 main

2 Infinity REF507CF (INFSPKRF507CFUS) w/ Adapter Plates

390W Peak (130W RMS) 5.25" Reference Series 2-way 3-ohm Component Speaker System with Speaker Adapter Plates

3
-12.14%

$477.88

List price $543.88

Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

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

124
-33.36%

$79.96

List price $119.99

DMH-1800NEX main

Pioneer DMH-1800NEX

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto, and SiriusXM Ready

3
-19.05%

$339.99

List price $420.00

UTE-73BT main

Alpine UTE-73BT

Single DIN Digital Media Receiver with Bluetooth

44
-16.69%

$149.95

List price $180.00

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

CV15BT main

Cerwin-Vega CV15BT

Single Din Digital Media Receiver with Bluetooth

3
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

Limited time!
DMH-W3050NEX main

Pioneer DMH-W3050NEX

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay and Android Auto, and Built-in Alexa (Sirius XM Ready)

1
-24.20%

$469.99

List price $620.00

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

XED62 main

Cerwin-Vega XED62

600W Peak (70W RMS) 6.5" XED Series 2-Way Coaxial 4-ohm Speakers

15
-16.67%

$49.99

List price $59.99


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

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

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

CWRT124 small

Kicker CWRT124 (48CWRT124)

• Peak Power: 1000 watts
• RMS Power: 500 watts
• Impedance: Dual 4 ohm
• UV-Treated Polypropylene Cone
• UV-resistant Santoprene Surround
• Mount depth: 3-3/4"
• Sensitivity: 85.5 dB

(3)

$199.96

List price $279.99

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)

(95)

$239.99

List price $287.99

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

$79.99

List price $139.95

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

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

(2)

$599.99

List price $719.99

Specifications & Details


Subwoofer Specifications
Series
Polk Audio MM1 Series
Subwoofer Size
12"
Peak Power Handling
1260 watts
RMS Power Handling
420 watts
Voice Coil(s)
Single
Impedance (Per Voice Coil)
4 ohm
Frequency Response
26 - 200 Hz
Sensitivity
87 dB
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Composite Polypropylene Cone - CPPC
Woofer Surround
Santoprene Rubber
Subwoofer Grille
No
Re-Cone Kit Available
No
CTA-2031 Compliant
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Minimum Sealed Box Volume
1.25 cubic feet
Maximum Sealed Box Volume
3.5 cubic feet
Minimum Ported Box Volume
1.75 cubic feet
Maximum Ported Box Volume
2.25 cubic feet
Top-Mount Depth (Mounting Depth)
4.64"
Cutout Diameter
11"
Shallow Mount Installation
No
What is in the box?
Paperwork
User manual
Warranty/Registration card
WITB: Subwoofers
Subwoofer
Mounting screws (4)
Other Accessory #1
1 Foam Gasket
Other Accessory #2
Two 7.5A ATO Fuses
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

MM1242 SVC

Weight:

10.00lbs

Internal SKU:

mm1242svc

Internal Product ID:

133887

Product and How-to Videos


Customer Ratings & Reviews


Polk Audio MM1242 SVC (MM1242SVC) thumbnail image

5 star
0%
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...
Sorry, no reviews found


MM1242 DVC main

Polk Audio MM1242 DVC (MM1242DVC)

• Peak Power: 1260 watts
• RMS Power: 420 watts
• Impedance: Dual 4 ohm
• Composite Polypropylene Cone - CPPC
• Santoprene Rubber surround
• Mount depth: 4.64"
• Sensitivity: 87 dB

(2)

$179.00

List price $249.99


40-VL30 small

Metra 40-VL30 Antenna Adapter

Connect your factory antenna to a new aftermarket radio for select 1999-2009 vehicles from Volvo

(2)

$22.99

List price $25.99

RUX-KNOB small

Alpine RUX-KNOB

Remote Bass Level Control with 5m Connection Cable

(21)

$34.95

List price $40.00

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

2008 Audi A6

2008 Lincoln MKX

2012 Toyota Avalon

2008 Ford Mustang

1995 Buick Century

1995 Ford Aerostar

2011 Porsche Boxster

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.