Expert Service 1-661-257-9993 [Hours]

Polk Audio DXi1240DVC (DXi 1240DVC)

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

In Stock
|
Special Offer!10% off Coupon Code SONIC10OFF
Click for
Special Offer

List price $119.99

You Save: $75.00 (62.51%)

Thanks , You Pay:

$44.99

with warranty

+ FREE Shipping in US 48

Order within 55 hrs 13 mins to ship 12/12

Arrives by Wednesday, Dec. 14 to zip 20147

Add an Extended Warranty

SquareTrade Product Warranty
60-Day Money-Back

Hassle Free Returns

Low Price Guarantee

Seen it for less? Click here

365-Day Coverage

Warranty assistance for a year

Item Added to Cart

Polk Audio DXi1240DVC (DXi 1240DVC)

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

$44.99

Keep Shopping

Get Added Peace of Mind with SquareTrade

Why SquareTrade?

  • The #1-Rated Protection Plan
  • 5-Day Service Guarantee & Free Shipping
  • Protection from Normal, Everyday Use
You have added a warranty
$4.99
Add Warranty
3 years of protection

Single 12" Sealed MDF Subwoofer Enclosure

Durable 3/4" Medium Density Fiberboard (MDF) Construction

$34.99

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.

$39.99

Add
20 Square Feet of Sound Dampening Material

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

$53.99

Add

Don't see the accessory you're looking for?
View all available accessories for the Polk Audio DXi1240DVC (DXi 1240DVC).

Get FAST answers from customers ASK a Question See questions answers

Bundles with this Product

=

Add a Sealed Enclosure to Your Subwoofer Purchase!

Add a Belva MDFS12 Sealed Subwoofer Enclosure to your Subwoofer purchase. Simply click the "Add Both to Cart" button.

0.00

112447

2685

Polk Audio DXi1240DVC (DXi 1240DVC)

$44.99

+

Single 12" Sealed MDF Subwoofer Enclosure (Belva MDFS12)

$34.99

Special Price $34.99 ($34.99 if purchased separately)

Single 12" Sealed MDF Subwoofer Enclosure (Belva MDFS12)

• 3/4" Medium Density Fiberboard Construction
• Durable Black Carpeting
• Pre-Lined with Poly-Fil
• Gold Speaker Terminals

(Offer 1 of 1)

Combined Total Price

$79.98

Polk Audio Store

General Features:

  • 12" Dual 4 ohm DXi Series Subwoofer
  • Power Handling:
    • RMS: 360 watts
    • Peak: 720 watts
  • Recommended power range: 100 - 360 RMS
  • 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

  • Priced Individually



Check out the DXi1240DVC Owner's Manual

Subwoofer Specifications

Subwoofer Series
Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.
DXi (Polk Audio)
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.
720 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.
360 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.
1.9685"
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
20 - 300 Hz
Sensitivity
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".
88 dB
Xmax (millimeters)
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.
18 mm
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.

Round / Circle
Main Cone Color
This is the color of the speaker's or subwoofer's cone.
Black
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Polypropylene
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.
Rubber
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.
No
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.
No

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.

Sealed
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.
0.75 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.
0.88 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.
1.0 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.
6-1/4"
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"
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.

No

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.
30 Hz
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.
76 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.
0.49
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.
7 ohms

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
50%
4 Star
50%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.3
Value
5.0
Features
4.3
Design
4.7
Usability
4.7
JORGE

BRONX, NY

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
Bass on 40 bucks

November 7, 2016

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.

0 of 0 found this helpful

Was this review helpful to you?

Keith Stone

Coulee Dam, wa

Overall
Durability
Value
Features
Design
Usability
Works Just Fine

October 17, 2016

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

0 of 0 found this helpful

Was this review helpful to you?

kinsley

carrollton, GA

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
For the money can't be beat.

October 9, 2016

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

0 of 0 found this helpful

Was this review helpful to you?

James Y.

san jose, ca

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
DXi is legit

June 30, 2016

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

0 of 0 found this helpful

Was this review helpful to you?

Jesus

San Diego, ca

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
Quality Sound on a budget

June 30, 2016

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.

0 of 0 found this helpful

Was this review helpful to you?

South

BROCKTON, MA

Overall
Durability
Value
Features
Design
Usability
Polk DXi1240DVC

June 27, 2016

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

0 of 0 found this helpful

Was this review helpful to you?

Accessory Tools and Products

Accessories added

Single 12" Sealed MDF Subwoofer Enclosure

Durable 3/4" Medium Density Fiberboard (MDF) Construction

Your Price $34.99

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.

Your Price $39.99

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

20 Square Feet of Sound Dampening Material

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

Your Price $53.99

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

Universal 12" Subwoofer Grille

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

Your Price $19.95

Universal 12" Subwoofer Grille

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

Your Price $19.95

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 Polk Audio DXi1240DVC (DXi 1240DVC) Subwoofer

Mono Amp

2 Channel Amp - Bridged

2 Polk Audio DXi1240DVC (DXi 1240DVC) Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

3 Polk Audio DXi1240DVC (DXi 1240DVC) Subwoofers

Mono Amp

4 Channel Amp

4 Polk Audio DXi1240DVC (DXi 1240DVC) Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Browse 2 questions and 11 answers
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
I read the reviews for this subwoofer, and it seems like a great sub for the price! Can't wait to hear it!
Erik A on Nov 29, 2016
Small system for a family member
Sam C on Nov 26, 2016
Good reviews and price
Tricia S on Nov 28, 2016
Sounds great in the Polk enclosure.
Doug O on Nov 25, 2016
What cf is this woofer?
A shopper on Jun 4, 2016
· Add Answer · I Have This Question Too (0)

Product Summary

Manufacturer

Model Number

DXi1240DVC

UPC

6887568964531

Weight

14.00lbs

Internal SKU

dxi1240dvc

Internal Product ID

112447

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: Polk Audio DXi1240DVC (DXi 1240DVC)