SALE
292-428_ALT_2.jpg
292-428_ALT_2.jpg
 
292-428_ALT_0
 
292-428_ALT_1
 
292-428_ALT_2
 

Manuals & Resources

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

Brand:|Model: 8PR-8
The GRS 8PR-8 8" woofer features a polypropylene cone and a rubber surround. It performs admirably in sealed-box speaker applications.
In Stock
List Price$16.99
Regular Price$12.00
You Save21%
Sale Price
$9.50
Part # 292-428
Share:
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

Product Details

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

The GRS 8PR-8 8" woofer features a polypropylene cone and a rubber surround. It performs admirably in sealed-box speaker applications. Thanks to its carefully optimized parameters, the GRS 8PR-8 8" polypropylene cone woofer with butyl rubber surround offers a high degree of compatibility when used as a replacement speaker—it also provide excellent performance in new projects, too.



Product Specifications
  • Nominal Diameter8"
  • Power Handling (RMS)65 Watts
  • Power Handling (max)90 Watts
  • Impedance8 ohms
  • Frequency Response40 to 5,000 Hz
  • Sensitivity85 dB 1W/1m
  • Voice Coil Diameter1.5"
Thiele-Small Parameters
  • Resonant Frequency (Fs)52 Hz
  • DC Resistance (Re)7.58 ohms
  • Voice Coil Inductance (Le)1.09 mH
  • Mechanical Q (Qms)4.77
  • Electromagnetic Q (Qes)1.45
  • Total Q (Qts)1.11
  • Compliance Equivalent Volume (Vas)0.76 ft.³
  • Maximum Linear Excursion (Xmax)3 mm
Materials of Construction
  • Cone MaterialPoly
  • Surround MaterialRubber
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter8"
  • Baffle Cutout Diameter7.32"
  • Depth3.44"
  • # Mounting Holes4
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume0.81 ft.³
  • Sealed F354 Hz
  • Vented Volume5.54 ft.³
  • Vented F329 Hz
GRS 8PR-8 8" Poly Cone Rubber Surround Woofer
  • BrandGRS
  • Model8PR-8
  • Part Number292-428
  • UPC844632088520
  • Product CategoryWoofers
  • Unit of MeasureEA
  • Product Rating
    (64 Reviews)
  • Weight3 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.

View similar products to the GRS 8PR-8 8" Poly Cone Rubber Surround Woofer
in the Woofers product category.

Reviews

GRS 8PR-8 8" Poly Cone Rubber Surround Woofer
GRS 8PR-8 8" Poly Cone Rubber Surround Woofer is rated 4.625 out of 5 by 64.
Rated 4 out of 5 by from Great replacement for Subaru McIntosh SubwooferPurchased this to replace a blown Mcintosh subwoofer in Subaru Legacy. Very hard to find something that isa) under 100RMSb) high sensitivityc) free aird) 8 ohmsThis GRS subwoofer lined up perfect with factory mounting holes, and while not quite as low or loud as the Mcintosh it does offer punch, and fills in slightly lower than than the front 6.5" speakers.Going above 32 on the volume control does over exert this subwoofer especially on very bassy and punchy music, but 32 is pretty loud on the Mcintosh headunit.Overall I am happy for the $60NZ inc shipping paid. I would never have found anything suitable at this price point for running in the Stock system.
Date published: 2015-08-23
Rated 5 out of 5 by from 3 Years And Still Going Strong!i bought 4 of these 3 years ago to restore some late 70's speaker towers and they haven't skipped a beat! and trust me i play my audio equipment to the limit! so a pair of these are in a box that's about 3 cubic feet and at full power they can it 40Hz before they exceed excursion limits, and with some EQ help they will have nice mid range as well. I have then running 2-way full range with a tweeter crossed at 3500Hz
Date published: 2015-07-24
Rated 5 out of 5 by from Exc replacement for Altec Lansing 887a "Capri"Used these to replace drivers in my Altec Lansing 887a "Capri" speakers that I recently picked up on Craigslist. I wanted a paper woofer and rubber surround, but PE only had poly cone with rubber surround, or paper woofer with foam surround. Anyway, these made for a painless, great sounding replacement.
Date published: 2015-05-18
Rated 2 out of 5 by from Can't go wrong with this woofer for the priceInstalled the 8" woofer and pizo tweeterin self manufactured Truck boxesas replacements from 30 years agoThere fine but the woofers fall a bit short inperformance for my critical earsThink I would like to upgrade to a morepremium set of driversCan your Tech support personelcontact me with recommendation for are selection.ThanksJohn
Date published: 2015-05-01
Rated 5 out of 5 by from Extremely Happy Customer !!!I received these 8" woofers in excellent packaging.I was amazed at their great & clear sound after installing them into the speaker cabinet.I wouldn't hesitate to buy from Parts Express again. They have great quality products & competitive pricing. Well done Parts Express !!!
Date published: 2015-04-20
Rated 4 out of 5 by from Works greatI purchased a pair of these to replace speakers that were installed in old old kenwood speakerboxes. I estimate the boxes were from the 1960's or 1970's. The old foam surround was rotten and I was surprised the speakers actually worked. One did stop working so I got these.I plugged them in and they work fantastic... could not beat the price either... Hopefully these will last me the 30+ years the originals did...I will add that I believe they measure speakers differently than they used to... these were about 3/16" smaller in diameter than my originals, but they still bolted up, I just had to drill new mounting holes in the cabinet.
Date published: 2015-04-03
  • 2015-09-03T06:48CST
  • bvseo_cps, prod_bvrr, vn_cps_3.1.6
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_64
  • loc_en_US, sid_292-428, PRD, sort_mostRecent
  • clientName_PartsExpressInternational

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 8PR-8 8" Poly Cone Rubber Surround Woofer

What is the displacement of this driver? I have another project in mind after i finish the current one.

Asked by: FellCrustacean8
The displacement of this woofer is 0.03 cuft.
Answered by: MattP
Date published: 2015-08-31

I'm looking for a simple combination for these woofers. 2 way? 3 Way? Tweeter? Crossover? Midrange? I'm running a Sansui AU999 Amp. I just want low level clean sound that fills the room. Budget minded of course, what combination would you suggest? 

Asked by: Madison44
Please contact our tech support for more help with this question, tech@parts-express.com or 800-338-0531 x1.
Answered by: MattP
Date published: 2015-04-29

What is the magnet weight on the GRS 8PR-8 8" Poly Cone Rubber Surround Woofer???

Asked by: Shakey1
Magnet weight is not listed for this model unfortunately. I would say it is 20-25 oz.
Answered by: MattP
Date published: 2015-03-24

will this fit my boston accos. a60 a70 speakers

Asked by: fingers 64
We do not have a cross reference available for this type of thing. Please contact our tech support for more help with this question, tech@parts-express.com or 800-338-0531 x1.
Answered by: MattP
Date published: 2015-03-16

Is there a datasheet for this? I am wondering what the exact outside diameter is, as my rebate has a diameter of 224mm and I have not yet managed to find a speaker with similar dimensions.

Asked by: shaneh711
We do not have a datasheet for this woofer, but it measures exactly 8" in diameter which is 203.2mm. A diameter of 224mm is 8.82", so you will need an 8" woofer with a slightly oversized frame. We have a few options that are 8-1/2" and 8-3/4", but nothing that will be exactly 8.82". There are two options below that will be the closest at 8.78".http://www.parts-express.com/dayton-audio-rs225-8-8-reference-woofer--295-356http://www.parts-express.com/dayton-audio-rs225p-8-8-reference-paper-woofer-8-ohm--295-367
Answered by: MattP
Date published: 2015-06-11

How well will these work as replacements for original Advent Heritage woofers instead of refoaming the orignals? Thanks

Asked by: BobAdvent
We do not have a cross reference available for this type of thing. Please contact our tech support for more help with this question, tech@parts-express.com or 800-338-0531 x1.
Answered by: MattP
Date published: 2015-01-21
  • 2015-09-03T07:44CST
  • bvseo_cps, prod_bvqa, vn_cps_3.1.6
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_29
  • loc_en_US, sid_292-428, PRD, sort_recentQuestionsFirst
  • clientName_PartsExpressInternational

Recently Viewed Products

Get Deals
emailed to you every week.

Be the first to hear about new and exciting products,special pricing and incredible deals!

See This Week's "GET DEALS" Email
Parts Express
725 Pleasant Valley Dr.Springboro,OH 45066USA
800-338-0531

© 1986-2015 Parts Express, All Rights Reserved

Host-Name:ZNODE1
Live Chat Software