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GRS 12PR-8 12" Poly Cone Rubber Surround Woofer

Brand:| Model: 12PR-8
Overview
A GRS 12PR-8 12" 8 ohm polypropylene cone woofer is a good, economical way to repair older speaker systems or create new projects.
Highlights
  • Polypropylene cone for perfect balance of stiffness, mass, and self-damping
  • Butyl rubber surround ensures high excursion and long term durability
  • Stamped steel frame keeps components in perfect alignment
  • Optimized motor features high-energy ceramic ferrite magnet, vented pole piece
Part # 
292-422
Weight: 5.55 lbs.  
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List Price$24.99
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Part # 292-422
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Product Details

GRS 12PR-8 12" Poly Cone Rubber Surround Woofer

A GRS 12PR-8 12" 8 ohm polypropylene cone woofer is a good, economical way to repair older speaker systems or create new projects.



Product Specifications
  • Nominal Diameter12"
  • Power Handling (RMS)100 Watts
  • Power Handling (max)140 Watts
  • Impedance8 ohms
  • Frequency Response30 to 3,000 Hz
  • Sensitivity84 dB 1W/1m
  • Voice Coil Diameter2"
Thiele-Small Parameters
  • Resonant Frequency (Fs)32 Hz
  • DC Resistance (Re)7.59 ohms
  • Voice Coil Inductance (Le)1.4 mH
  • Mechanical Q (Qms)4.13
  • Electromagnetic Q (Qes)1.82
  • Total Q (Qts)1.26
  • Compliance Equivalent Volume (Vas)3.36 ft.³
  • Maximum Linear Excursion (Xmax)3.5 mm
Materials of Construction
  • Cone MaterialPoly
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter12"
  • Baffle Cutout Diameter11.0625"
  • Depth4.6875"
  • # Mounting Holes8
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume2.72 ft.³
  • Sealed F334 Hz
  • Vented Volume31 ft.³
  • Vented F318 Hz
GRS 12PR-8 12" Poly Cone Rubber Surround Woofer
  • BrandGRS
  • Model12PR-8
  • Part Number292-422
  • UPC844632088544
  • Product CategoryWoofers
  • Unit of MeasureEA
  • Product Rating
    (35 Reviews)
  • Weight5.55 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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View similar products to the GRS 12PR-8 12" Poly Cone Rubber Surround Woofer
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Reviews

GRS 12PR-8 12" Poly Cone Rubber Surround Woofer
GRS 12PR-8 12" Poly Cone Rubber Surround Woofer is rated 4.4286 out of 5 by 35.
Rated 4 out of 5 by from seem to be good quality replacements.The bass isn't as I expected but these are still good replacement speakers.
Date published: 2014-10-21
Rated 5 out of 5 by from More than what I expected!I purchased these to replace the woofers in a set of Pioneer CS-G301WAII 3-way bookshelf speakers. These are a serious upgrade to these relatively low-end bookshelf speakers. I couldn't be happier. I'm not sure anything could have been a better replacement at any price for these particular speakers. No modification required at all. Balanced response with plenty of very low frequency bass extension when the music requires it. Highly recommended!
Date published: 2014-10-18
Rated 5 out of 5 by from Just RightPerfectly suited my small venue setup. Almost plug and play. Up and running in less than an hour.
Date published: 2014-10-11
Rated 5 out of 5 by from cant be beat for the priceI asked about putting this in a maxima as infinite baffle, partsexpress said it would work well and would sound similar to the old bose sub, so i figured since these things are super cheep i would get 2, and I think one would have been more than adequate, muuuuch better than the stock bose, really shakes things up. Its not the loudest but it is alot louder than stock even with the amp turned down, and the bass is surprisingly smooth, i expected the highs to be good but the lows really came through nicely. Im just blown away at how great they are for how little i paid. I plan on buying more just to have and eventually finding a use for it
Date published: 2014-08-13
Rated 5 out of 5 by from Great SpeakersThis was my 1st time making a purchase from Parts Express - I order my speakers on a Sunday and by Friday I had them. Very easy to install and the sound is wonderful.
Date published: 2014-08-11
Rated 5 out of 5 by from Great replacementBought to replace a 30 year old woofer in a studio 3 way. Fit good but seems tighter. Might have to be used a bit to wear in The old on in the other speaker moves more. I think it will be just fine in time.
Date published: 2014-07-31

Product Q&A

Get your questions answered from other customers
who own this product or have experience with it.
If your question requires design or troubleshooting information,
please email tech@parts-expresss.com  for a prompt reply.
GRS 12PR-8 12" Poly Cone Rubber Surround Woofer

Wats the smallest. Cubic feet box these can be in... i want to run like 10 of them in a spl box ... just wanna be cheap..

Asked by: slam314
You will have to use an underdamped, high Q design for these woofers. I would recommend 1.5-2 cubic feet per woofer sealed and heavily stuffed.
Answered by: MattP
Date published: 2014-08-12

How deep is this woofer and would it work in an open baffle stereo console?

Asked by: ekeltto
This woofer is about 4-5/8" deep and it will work well in an open baffle application.
Answered by: MattP
Date published: 2014-08-11

I purchased 2 of these drivers last year and never received the the t/s parameters in the shipping box.I need them because i don't have a speaker analizer.

Asked by: smarty
The T/S parameters are listed on the product page on our website.
Answered by: MattP
Date published: 2014-08-05

my moms sub died in her nissan maxima, im looking for a cheep sub that i can use in an infinate baffel config that has enough bass for my parents. (they were happy with the 6inch bose sub so it wouldnt have to be loud at all) would this work?

Asked by: 2tall
This will work well in an IB application and should produce similar output to the original subwoofer.
Answered by: MattP
Date published: 2014-08-04

What will by optimum cabinet size for vented box and port size. Thank You.

Asked by: Sladja9
The recommended ported volume for this woofer is 31 cubic feet, not very practical. We recommend around 2 cubic feet sealed for the best results.
Answered by: MattP
Date published: 2014-07-24

I wanna use these as subs in a sealed box.  Would 2 of these sound good bridged at 4 ohms on a pioneer gma-3602 2 channel amp? It puts 180 rms bridged 

Asked by: jimm5555
These will work well as sealed subwoofers but will be limited with their output capability do to their low excursion. If you are not looking for absolute SPL these should work fine.
Answered by: MattP
Date published: 2014-07-11

Customer Projects

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