Garage
Shop

See all parts that fit your 1979 Challenger

Polk Audio DXi1240DVC Two Pack (DXi 1240DVC)

Two 720W Max, 12" Dual 4 ohm DXi Series Car Subwoofers (DXI1240-DVC)

Product videos
highlight-star-icon

• 360 Watts X 2 RMS
• 720 Watts X 2 Max
• Dynamic Balance polypropylene cone
• Butyl Rubber Surround
• 50mm High temperature copper voice coils
• Frequency Response: 20Hz-300Hz
• Sensitivity: 88dB

Learn more about the 2-dxi1240dvc

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

123
-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

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

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

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

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

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

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

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

Product Highlights


• 360 Watts X 2 RMS
• 720 Watts X 2 Max
• Dynamic Balance polypropylene cone
• Butyl Rubber Surround
• 50mm High temperature copper voice coils
• Frequency Response: 20Hz-300Hz
• Sensitivity: 88dB

Description


Polk Audio brand icon

Authorized dealer

General Features:

  • Two 12" Dual 4 ohm DXi Series Subwoofers
  • Power Handling:
    • RMS: 360 watts (Each)
    • RMS: 720 watts (Pair)
    • Peak: 720 watts (Each)
    • Peak: 1440 watts (Pair)
  • Recommended power range: 100 - 360 RMS Each
  • Dynamic Balance polypropylene cone
  • Butyl Rubber Surround
  • Dynamic Balance® driver technology
  • Nickel plated heavy duty input terminals - accommodates 8 AWG or twisted pairs of 12 AWG
  • 50mm High temperature copper voice coils
  • Top-mount depth: 6 1/4"
  • Cutout diameter: 11"
  • Frequency Response: 20Hz-300Hz
  • Sensitivity: 88dB
  • Resonance Frequency (Fs): 30Hz
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty
Check out the DXi1240DVC Owner's Manual

Subwoofer Wiring Guide


Wiring Guide to Wire 1 Polk Audio DXi1240DVC Two Pack (DXi 1240DVC) Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Polk Audio DXi1240DVC Two Pack (DXi 1240DVC) Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Polk Audio DXi1240DVC Two Pack (DXi 1240DVC) Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 Polk Audio DXi1240DVC Two Pack (DXi 1240DVC) 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

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

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

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

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

52L7XS121 small

Kicker L7XS121 (52L7XS121)

• RMS Power: 1500 - 3000 watts
• Impedance: Dual 1 ohm
• Double-pressed pulp Cone
• Nitrile Butadiene Rubber NBR Surround
• Mount depth: 10-1/8"

$1399.99

List price $1499.99

Specifications & Details


Subwoofer Specifications
Series
DXi
Subwoofer Size
12"
Peak Power Handling
720 watts
RMS Power Handling
360 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohm
Voice Coil Diameter
1.9685"
Frequency Response
20 - 300 Hz
Sensitivity
88 dB
Subwoofer Design
Round / Circle
Woofer Composition
Dynamic Balanced polypropylene
Woofer Surround
Butyl Rubber
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
30 Hz
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

2-DXi1240DVC

Weight:

28.00lbs

Internal SKU:

2-dxi1240dvc

Internal Product ID:

112771

Product and How-to Videos


Customer Ratings & Reviews


Polk Audio DXi1240DVC Two Pack (DXi 1240DVC) thumbnail image

5 star
63%
4 star
38%
3 star
0%
2 star
0%
1 star
0%



Durability
4.5
Value
5
Features
4.5
Design
4.8
Usability
4.8

Customer Reviews

Sort by:

Loading...

Polk DXi1240DVC

The following review is for DXi1240DVC, which is a part of the bundle you are viewing.

Polk 12" works great paired with Belva ported box and 1500 watt amp in my BMW, but sounds great and is all is expected.

By South on June 27, 2016

3 found this helpful


DXi1240DVC

The following review is for DXi1240DVC, which is a part of the bundle you are viewing.

This polk came as a package with the BBX112 BK enclosure and did a really good job in my wife's BMW, I would recommend for a stater who wants a little extra bump for the daily commute.

By South on August 14, 2020 Checkmark Icon Verified purchase

1 found this helpful


Holy cow!!

The following review is for DXi1240DVC, which is a part of the bundle you are viewing.

Bought this as a replacement for another brand and all I can say is wow!! Sharp crisp bass!! Definitely would buy again!!

By Emilio on December 14, 2016


Bass on 40 bucks

The following review is for DXi1240DVC, which is a part of the bundle you are viewing.

For price the polk is great must have sealed 1 cubic ft box. Not for small enclosure this bass on budget is great.only downside the speaker terminals are not push terminals but what u expect for 40 bucks.

By JORGE on November 7, 2016 Checkmark Icon Verified purchase


Works Just Fine

The following review is for DXi1240DVC, which is a part of the bundle you are viewing.

So far so good. I have it hooked to a Kenwood 600 watt amp and it sounds great.

By Keith Stone on October 17, 2016


For the money can't be beat.

The following review is for DXi1240DVC, which is a part of the bundle you are viewing.

Nice,crisp sound for those that want bass but no trunk rattle

By kinsley on October 9, 2016 Checkmark Icon Verified purchase


DXi is legit

The following review is for DXi1240DVC, which is a part of the bundle you are viewing.

to be honest I never had heard of DXi mostly I knew about the DB series but this 12" sub right here really provides a lot of boom, if anything I think they underrate their subs unlike some of the low end brands out there, I'd consider this a competitor to Rocford and Kicker at the fraction of the price. I put this in a sealed box, wired to a 2000 watt belva amp Sonic recommended and the boom I get is 10/10

By James Y. on June 30, 2016 Checkmark Icon Verified purchase


Quality Sound on a budget

The following review is for DXi1240DVC, which is a part of the bundle you are viewing.

Money is tight and I needed a budget subwoofer that could satisfy my needs. I did not know what to expect when I purchased this sub but was blown away when the first time I hooked it up. I am running it on a NVX MVPA1 and the bass thumps in my trunk. Need to purchase some sound dampener because of how hard this thing hits.

By Jesus on June 30, 2016 Checkmark Icon Verified purchase




XRS9770 PRO small

Cobra XRS9770 PRO

15 Band Ultra High Performance Radar/Laser Detector w/ Digiview™ Data Display & Voice Alert

(1)

$119.95

List price $199.95

YSW104_VAD17001_XKIT42 small

NVX YSW104 + VAD17001 + XKIT42

1600W Peak (800W RMS) Y-Series 10" Car Subwoofer + Monoblock Car/Marine/Powersports Amplifier with Bass Remote + Complete 2-Channel Amplifier Wiring Kit w/ RCA for Amplifiers

(161)

$669.96

List price $839.96

MS-RA205 small

Fusion Electronics MS-RA205

Waterproof Digital Marine Receiver w/ iPod/iPhone Support & Bluetooth Ready

(2)

$226.92

List price $279.99

2_db651 small

Two Pairs of Polk Audio db651

720 Watts Peak 6.5" / 6.75" 2-Way Marine Certified db Series Car Speakers Set w/ Liquid Cooled Silk Tweeters

(202)

$129.96

List price $299.90

THUNDER1000.1 small

MTX THUNDER1000.1

1000W RMS Class D Thunder Series Monoblock Car Amplifier

(2)

$299.95

List price $419.95

CD2000 small

** CLOSEOUT!! ** Eclipse CD2000

In-Dash AM/FM CD, MP3, WMA Receiver

$109.99

List price $199.99

db104DVC small

Polk Audio db104DVC

Dual 4 ohms 10" db Series Subwoofer (Marine Certified)

(1)

$54.99

List price $119.99

HT-45 small

Beyma HT-45

Sound Concept Series 1" Tweeters ( HT45 )

$139.99

List price $249.99

CS-AW6040 small

JVC Arsenal CS-AW6040

1200W Max, 10" Dual 4 ohm Subwoofer (CSAW6040)

$79.99

List price $179.99

Related Searches


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

1979 Dodge Challenger

1995 BMW 850Ci

1989 Geo Metro

1992 BMW 735i

1996 Eagle Summit

2001 Cadillac Eldorado

2011 Audi A4

1980 BMW 633CSi

1952 GMC 100

1994 Saturn SL

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.