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Infinity 1252w

Reference Series 12" subwoofer with dual 4-ohm voice coils

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Item# 1081252W offer details

Item# 1081252W

Review Summary

 
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Infinity

Our take on the Infinity 1252w

No matter what kind of music you listen to, count on Infinity Reference Series subs to deliver the power of the bass instruments in true-to-life fashion. Infinity's Reference 1252w 12" subwoofer adds impact to your tunes with a lightweight cone that responds quickly and accurately, so you'll enjoy every hard-hitting beat.

Infinity built this sub for power and accuracy, with a large-roll rubber surround that extends and controls cone movement, along with a spider design that applies more force to the cone as it travels to its limit. Behind the scenes, the 1252w features a specially designed basket that allows plenty of cone excursion while minimizing the sub's depth.

Built-in air vents cool the sub's internal workings for excellent reliability. Dual 4-ohm voice coils give you more options for wiring, whether you're building a multi-sub setup or drawing more power out of your amp.

Note: If you are wiring this DVC sub for lower impedance, make sure that your amp is compatible. Most 2-channel car amplifiers are stable down to 2 ohms in standard mode, or 4 ohms in bridged operation. Most mono amps are stable down to 2 ohms.

Highlights:

  • 12" subwoofer with dual 4-ohm voice coils
  • polypropylene woofer cone with large-roll rubber surround
  • innovative basket design minimizes depth
  • progressive spider design for excellent cone control
  • power range: 60-300 watts RMS (150 watts per voice coil)
  • peak power handling: 1,200 watts
  • frequency response: 23-400 Hz
  • sensitivity: 93 dB
  • top-mount depth: 5-1/16"
  • sealed box volume: 1.25 cu. ft.
  • ported box volume: 2.00 cu. ft.
  • warranty: 1 year
  • Our 60-day money-back guarantee

Priced per speaker
 

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs

Features and Specs
Size
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12 -inch
Impedance
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4 ohms
Cone Material
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Polypropylene
Surround Material
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Rubber
Ideal Sealed Box Volume (cubic feet)
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1.25
Ideal Ported Box Volume (cubic feet)
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2
Port diameter (inches)
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4
Port length (inches)
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12.25
Free-Air
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No
Dual Voice Coil
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Yes
Sensitivity
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93 dB at 2.83 watts
Frequency Response
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23 - 400 Hz
RMS Power Range (Watts)
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60-300
Peak Power Handling (Watts)
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1200
Top Mount Depth (inches)
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5 1/8
Bottom Mount Depth (inches)
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5 11/16
Cutout Diameter or Length (inches)
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11 1/8
Vas (liters)
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98.64
Fs (Hz)
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24.23
Qts
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0.48
Xmax (millimeters)
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12.5
Parts Warranty
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1 Year
Labor Warranty
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1 Year

Product Research

Product Research
What's in the box?

Download owner's manual

  • 12" woofer
  • Self-adhesive foam gasket
  • Instructions
  • Technical Data sheet
  • Warranty card
  • Infinity sticker (8" x 2-1/2")

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Features
Enclosure Compatibility

Features

Dual Voice Coils: For increased system flexibility, the woofer has two 4 ohm voice coils. When the voice coils are wired in parallel the woofer presents a 2 ohm load. When the voice coils are wired in series the woofer presents an 8 ohm load. In addition, each coil may be connected to a different amplifier channel and each channel will see a 4 ohm load.

High-efficiency Polypropylene Woofer Cone: This lightweight and popular material is used to ensure maximum woofer efficiency. The benefit is high output with modest amplifier power.

Large-roll Rubber Surround: The large-roll rubber surround provides optimum cone-edge suspension and absorbs distortion that may travel up the cone edge, ensuring clean, tight bass.

Proprietary Basket: The unique in-board motor structure reduces the overall mounting depth, without limiting enclosure options.

Vented Polepiece: The vented polepiece provides additional cooling of the motor structure, thus increasing power handling.

Gold-plated Binding Posts: The gold-plated binding posts will accept pin connectors, spade connectors, banana plugs, and bare wire up to 10 gauge.

Note: The binding posts are positioned too far apart to accept dual banana plugs.

Enclosure Compatibility

Sealed Box Volume: Infinity recommends a sealed enclosure with an internal volume of 1.25 cu/ft. Sealed enclosures provide the most control over a woofer, will handle more power, and provide more accurate sonic reproduction, making them suitable to all types of music.

Ported Box Volume: Infinity recommends a ported enclosure with an internal volume of 2.0 cu/ft with one 4" diameter x 12.25" long port. Ported (or vented) enclosures provide better efficiency in the 40-50Hz range, and are suitable for use with small amplifiers, giving you more bass output from less power. However, this efficiency comes at the expense of sound quality at low frequencies (40Hz and below), and control.

Bandpass Box Volume: Infinity recommends a bandpass enclosure with an internal volume of 2.5 cu/ft. The enclosure has a sealed chamber volume of 1.25 cu/ft and a ported chamber volume of 1.25 cu/ft with two 4" diameter x 8" long ports. Bandpass enclosures often provide the most output available from any amplifier and subwoofer combination at the expense of sonic accuracy. If sheer SPL is desired most, a bandpass enclosure is recommended.

 

Product Reviews

Review Summary

Average Customer Review:

25 people say:
(22)
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1-10 of 25 items >> Sort Results By: Date Reviewed | Rating | Helpfulness
 
5 out of 5

infinity ref 1252w on Profile AP1200

Written By B, Sun Prairie, WI on Sunday, August 10, 2008
 
I have had these subs for about 2 years and just got my new profile AP1200 watt amp about a month ago and these subs hit soooo hard if in the right box and tuned right. I love them they sound like 1000 watt (RMS) subs instead of 600 watt (RMS) subs.

They are great, I would highly recommend them for bass that will shake your car.
2 out of 4 people found this helpful
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5 out of 5

Infinity 1252w

Written By CHRIS, LEESBURG,GA on Tuesday, July 24, 2007
Crutchfield Customer Review (What's this?)
Crutchfield Customer Review

The reviewer purchased this item from us, verified by the email address on the order.

 
I BOUGHT THESE FOR MY NEPHEW AND PUSHED THEM WITH AN OLDER MTX AMP, IN A 1996 CHEVY KING CAP 1500. I AM VERY HAPPY WITH THE SOUND AND BASS THEY PRODUCE , BUT I AM GOING TO LOOK FOR A DIFFERENT AMP.
2 out of 2 people found this helpful
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5 out of 5

very good deal

Written By , moorhead, MN on Saturday, August 15, 2009
Crutchfield Customer Review (What's this?)
Crutchfield Customer Review

The reviewer purchased this item from us, verified by the email address on the order.

 
i just bought 2 of these to add to the one my friend gave me and i put them all in my back seat with a custom box i made and hooked them up to a proper amp (kenwood exalon 1200 watt, 900 rms) wired them in parallel/series form to give them a 2.7 ohm load and it sounds amazing louder than any setup i've had, still waiting to turn them up thou and it pounds.

for the price it would cost for three of these on crutchfeild its a straight out steal. great subs only reason price is low is cause its a older model. grab them while you can.
6 out of 6 people found this helpful
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5 out of 5

These Subs Pound!!!!

Written By Anthony, apo on Tuesday, August 25, 2009
Crutchfield Customer Review (What's this?)
Crutchfield Customer Review

The reviewer purchased this item from us, verified by the email address on the order.

 
I bought 3 of these to go into my Malibu. I got them wired in parallel/series to a 1200w amp. They got my trunk rattlin and my car vibratin outta control!! I would totally recommend these to anyone that wants a great sub for cheap.
1 out of 1 people found this helpful
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5 out of 5

BEST BANG FOR THE DOLLAR!!!

Written By Jeff, Charleston, SC on Wednesday, August 19, 2009
Crutchfield Customer Review (What's this?)
Crutchfield Customer Review

The reviewer purchased this item from us, verified by the email address on the order.

 
This is the best sub for the dollar on the market. you cannot get a box for this price. only downside is this woofer is kind of heavy! this sub bangs the HECK out of my Celica! if you can find a better deal. its probably stolen! which means means no warranty! again i cant reiderate how great this woofer sounds!
2 out of 2 people found this helpful
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5 out of 5

AWSOME!!!!!

Written By Theron, Duluth, GA on Monday, May 07, 2007
Crutchfield Customer Review (What's this?)
Crutchfield Customer Review

The reviewer purchased this item from us, verified by the email address on the order.

 
I bought a pair of these babies along with a infinity reference 611a amp, WOW!!!!! these are playing along with a infinity reference 7541a amp with 4 6x8 infinity kappa 682.7cf speakers, they are in a 2000 mustang and WOW!!!!! the bass is awsome clean and clear and they will shake the whole car!!!!! i would highly recommend!!!! what a great set of 12's!!!!!!! you cant go wrong with these!!!!! i get complements on the sound all the time, people are stopping me asking what do you got in that mustang!!!!
3 out of 3 people found this helpful
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5 out of 5

great subs

Written By Mike, Jax FL on Thursday, January 25, 2007
 
I have 2 of em running off of an infinity ref 611a mono amp and these things rock.

they were cheap too!

for cheap, good bass look no further
3 out of 4 people found this helpful
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5 out of 5

great sub

Written By mike, conway arkansas on Sunday, January 14, 2007
 
got a pair in a sealed box and it sounds great. have them on a old mtx blue thunder pro3002 and they pound. they sound better than the w1's i used to have.
3 out of 4 people found this helpful
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5 out of 5

Infinity 1252w

Written By Rick, Rick from Hatboro PA on Sunday, February 25, 2007
 
I have two of these in my ford explorer powered by a rockford fosgate p6002 amp. I ran 4 awg wiring and these just give off the loudest, clean, hardest bass ive ever heard and felt. These subs make my cd player skip bc how much they rattle my car. People say they hear me from a mile away. Great subs, I wouldnt recomend any other sub.
3 out of 3 people found this helpful
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5 out of 5

Infinity 1252w

Written By compujas, Springfield, NJ on Thursday, April 19, 2007
Crutchfield Customer Review (What's this?)
Crutchfield Customer Review

The reviewer purchased this item from us, verified by the email address on the order.

 
I bought one of these (Scratch & Dent, though I couldn't find anything wrong with it) for the trunk of my 2006 Mazda 3 Sedan. I paired it with an Infinity 311a running at 2ohms in a sealed 1.25cuft box. I leave one part of the rear seat folded down and have the box behind the other seat and it sounds great. Sometimes it gets to the point where I have to turn the bass down just so I can hear the rest of the music. It would have been nice if I could get good bass without folding down the seat, but that's a flaw of having a sedan, not the subwoofer. All in all it sounds excellent with any type of music. Definitely recommended.
4 out of 4 people found this helpful
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1-10 of 25 items >>

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Ken Nail
7/13/2008
based on 260 ratings (19 comments)
 

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The type of bass you get from your component subwoofer doesn't depend on the woofer alone. You'll need a strong, tightly constructed enclosure for optimum subwoofer performance.

 
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Having a subwoofer in your car is a good thing, but if the subwoofer isn't properly tuned, it won't sound as good as it should. This article describes how to adjust your amplifier so that your...

 

Accessories

Accessories we recommend

Speaker Wire
It's critical to have good wire, and none is included with the sub.
StreetWires 14-gauge Ultra Cable™ Speaker Wire
Blue/copper jacket — priced per foot
$0.75
In Stock
 
 
StreetWires 14-gauge Super Cable™ Speaker Wire
Translucent blue jacket — priced per foot (Clear)
$0.99
In Stock
 
 
Dynamat
Reduce ambient road noise and your vehicle's "rattles," for better sound inside your car.
Dynamat 19100
License Frame Kit
$14.99
In Stock
 
 
Dynamat Xtreme Wedge Pack
1 sheet, 4 square feet
$39.99
In Stock
 
 
Dynamat SuperLite Tri-Pak
Triple package — 3 sheets, 12 square feet (Model #10612)
$69.99
In Stock
 
 
Dynamat Xtreme Trunk Kit
5 sheets, 20 square feet
$169.99
In Stock
 
 
Dynamat Dynaliner
One 54" x 32" sheet (1/8" thick)
$69.99
In Stock
 
 
Show more items
Grilles
Add a grille and keep your sub safe.
Speaker Grilles
(12" waffle style)
$9.99
In Stock
 
 
Box Hardware
These can be useful if you are building a custom box.
Springback Handle
$9.99
In Stock
 
 
Grille Clamps
(Front/top mount clamps)
$3.99
In Stock
 
 
Rubber Feet
$5.99
In Stock
 
 
Corner Protectors
$9.99
In Stock
 
 
Show more items
Speaker Wire Terminals
If you're building your own sub box, add speaker wire terminals for easy speaker wire connections.
Metra Speaker Terminal
Square terminal cup with spring clip connectors (for do-it-yourself box builders)
$3.99
In Stock
 
 
Metra Speaker Terminal
Round terminal cup with spring clip connectors (for do-it-yourself box builders)
$3.99
In Stock
 
 

Extras

Test Discs
Autosound 2000 discs are designed to test specific performance parameters of your vehicle's audio system.
Autosound 2000 CD Set
$69.95
In Stock
 
 
 
Add selected to cart
 

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Sorry, the Infinity 1252w is no longer available for purchase.

Infinity 1252w