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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

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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.

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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

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1-10 of 25 items >> Sort Results By: Date Reviewed | Rating | Helpfulness
 
5 out of 5

Great sub, great price

Written By Jordan, Billings, Montana on Tuesday, May 04, 2010
 
I was new into buying subs and amps. i saw this and said i had to have it! im running it on a 400 watt amp and it hits hard and accurate, it totally beats my friends two 250 watt JL audios. Another really good product that I have is the alpine cde 100 cd receiver. This sub though is really great with 1200 watts peak, what more could you want. id plan on getting another one of these off crutchfield but they were discontinued right after I bought it. but if you can find it somewhere else, get it. I would recommend this sub to anyone.
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5 out of 5

CLEAN SUBS

Written By ahurtado, ATWATER, CA on Wednesday, April 07, 2010
 
I just bough 4 of these to put in my tahoe and man do these things hit I put them with a cx3500d mono amp and my truck sound like it Gonna fall apart i dint tink it would sound this good highly Recommend these subs and for the price they are really really nice
1 out of 1 people found this helpful
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5 out of 5

Best Bang For Your Buck!

Written By Cody, Washington State on Friday, March 26, 2010
 
I wanted to get a new setup and i was on a tight budget and then i came across these wow... i finally received them today after ordering them last week (6 day ship freeeee) then installed them into my ford ranger and man..... just breaking them in makes my neighbors mad. These subs are definitely made more on the SQ than Deep bass but you get the best of both for this price!.. picked two up and set em in a 2.53cu ft box (1.26cu ft ea chamber) hit hard and only have about 20mins of playtime cant wait to hear them when their fully broke in i recommend these since there discontinued and what else CHEAP with QUALITY!
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5 out of 5

Quality for a low price

Written By Hoogie, Washington State on Tuesday, March 23, 2010
 
I had one of these subs in a 1.25 cubic ft box powered at 600 watts RMS. Yes it can take the
power if you don't turn up the bass boost on your amps or decks to high. All subs can
handle more than their rating, if the signal is clean, it is distortion not wattage that blows
speakers. That being said it sounded great but one just wasn't loud enough. I switched to
2 alpine type r 12's and they are much much louder but, honestly the sound quality of the
Infinity is better.
1 out of 1 people found this helpful
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5 out of 5

best subs i've owned

Written By doby, Blackduck, MN on Friday, March 12, 2010
 
I bought 2 of these subs and have had nothing but good luck with them. they aren't getting pushed to the max but compared to my old pioneer the lows and highs are just beautiful. i dont think i'll ever buy a different brand. and i plan on buying 2 more. thanx for the great deals.
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4 out of 5

4 1252w 12" subs with a cea rated amplifier

Written By pamela, NY on Monday, March 01, 2010
 
So I just bought 4 of these on this website and put them in the back of a s10 with a 8cf box ported to 35hz and it slams so hard and blows away the competition when there right behind you. My whole dash shakes like crazy and everything on it jumps , windows and roof flex too. No one can stand being in the truck without plugging there ears.
Con:
I only have about 250rms going to each sub bairly and they make a bad plastic smell like its burning voice coil for 30 seconds on , when there rated for 300rms . So somethings up , I'm not sure they will hold up to 300rms, my system is professionally tuned with a multi meter and installed only getting 250rms at 14.4v which I dont get because my system drops to 12v . So well see what happens in the longer run or ill be returning them. I have only had these for about a week . And has 1 hour total on the subs/amp.

It could be the factory glue burning off the voice coil so I could be wrong but well see what happens.

I do recomened them for this price but just dont pound them
4 out of 5 people found this helpful
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5 out of 5

Excellent sub, and at this price - Wow

Written By Timothy, Nashville, TN on Tuesday, January 19, 2010
 
Picked these up to put in a 2002 Mustang for my friend's son. They were on super closeout sale so picked up two. Matched them with a super inexpensive 1000v2 amplifier. In the recommended sealed enclosure they absolutely slam. Even better, at high output they still remain very controlled, tight and just simply sound great. No sloppy, one-note bass here, even with his trunk flexing at least an inch!

The fact that the subs are so efficient certainly helps. The amp is rated at 500x2 into 2 ohms. One of their technicians told me it will actually put out roughly half of that RMS. I would say that with the resultant 250 watts per each stereo channel we are getting close to full output from the subs. With the levels properly set they hit super hard without reaching their mechanical limit. The amp also runs pretty clean without clipping or going into thermal protection at about 3/4 gain. Very impressed with this little amp. It moves them better than the bridged Kicker 360.4 he had in the car from a previous system. That will now move to component duty. We'll see if the amp holds up.

In a word, buy some of these before they are all gone. First-class bass at a flea market price!
1 out of 1 people found this helpful
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5 out of 5

These are amazing

Written By mike, Fremont, MI on Wednesday, January 13, 2010
 
I bought this subwoofer because i knew that Infinity was a good brand. i saw this one and it peaked at 1200watts and RMSed at a good level...it is one of the best sounding subwoofers i have ever heard. i am very happy with this subwoofer and i am going to buy another one...this is probably one of the best deals you will get for such a good quality sub for such a low price.
1 out of 1 people found this helpful
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5 out of 5

The Best Sub of its price range

Written By Corey, Fort Smith, AR on Wednesday, January 13, 2010
 
I have two 1252's hooked up to a JackHammer600 in a bandpass enclosure. Even in a
bandpass enclosure these Infinitys' produce super accurate bass. The most impressive
feature of these subs is the big steel basket and its design, I dont believe you'll find
another sub like it. The 1252's are super versatile for wiring, too. The only con i could
even think of for the 1252's was the fact that i had to modify my box to fit the basket snug
inside (the rings weren't large enough) but dont let this review scare you, my brother
also has 1252's and they fit right in to his enclosure. The 1252 is super versatile and I
highly recommend you consider them.
1 out of 1 people found this helpful
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5 out of 5

Great

Written By Kris, Mt. Sterling, OHIO on Wednesday, December 16, 2009
 
The first sub I ever owned was a Pioneer IMPP. I had 2 of those within 6 months. I went out and bought this Infinity and have never made a better decision since then. I even bought one for my sisters' Cavy w/ and 500w. amp. They both get pushed to the max every day and have had zero problems with them.
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1-10 of 25 items >>

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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)

Also available in:
Open Box: $6.99
$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
 

For a more in-depth review and enhanced detailed information on the Infinity 1252w, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_1081252W/Infinity-1252w.html ).

Infinity 1252w