Manuals & Resources

GRS 6PF-8 6-1/2" Paper Cone Foam Surround Woofer

Brand:|Model: 6PF-8
All the sound you need, and without spending a bundle! The GRS 6PF-8 paper cone 6" woofer is the answer to your replacement speaker needs.
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List Price$13.99
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Part # 292-406
  • Perfect for use in sealed-box home theater and music systems
  • Poly-laminated paper cone, treated foam surround, and polymer dust cap
  • Smooth frequency response with minimal cone breakup

Product Details

GRS 6PF-8 6-1/2" Paper Cone Foam Surround Woofer

All the sound you need thanks to their carefully optimized parameters, the GRS 6PF-8 6-1/2" poly-laminated paper cone woofers offer a high degree of compatibility when used as replacement speakers—they also provide excellent performance in new projects, too.

Product Specifications
  • Nominal Diameter6-1/2"
  • Power Handling (RMS)90 Watts
  • Power Handling (max)180 Watts
  • Impedance8 ohms
  • Frequency Response70 to 8,000 Hz
  • Sensitivity87 dB 1W/1m
  • Voice Coil Diameter1.5"
Thiele-Small Parameters
  • Resonant Frequency (Fs)82 Hz
  • DC Resistance (Re)7.59 ohms
  • Voice Coil Inductance (Le)1.09 mH
  • Mechanical Q (Qms)3.67
  • Electromagnetic Q (Qes)1.3
  • Total Q (Qts)0.95
  • Compliance Equivalent Volume (Vas)0.25 ft.³
  • Maximum Linear Excursion (Xmax)3 mm
Materials of Construction
  • Cone MaterialTreated Paper
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter6.5"
  • Baffle Cutout Diameter5.625"
  • Depth3.0625"
  • # Mounting Holes4
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume0.34 ft.³
  • Sealed F386 Hz
  • Vented Volume1.35 ft.³
  • Vented F347 Hz
GRS 6PF-8 6-1/2" Paper Cone Foam Surround Woofer
  • BrandGRS
  • Model6PF-8
  • Part Number292-406
  • UPC844632088469
  • Product CategoryWoofers
  • Unit of MeasureEA
  • Product Rating
    (11 Reviews)
  • Weight2.9 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 6PF-8 6-1/2" Paper Cone Foam Surround Woofer
in the Woofers product category.


GRS 6PF-8 6-1/2" Paper Cone Foam Surround Woofer
GRS 6PF-8 6-1/2" Paper Cone Foam Surround Woofer is rated 4.8182 out of 5 by 11.
Rated 5 out of 5 by from Sweet woofer in br1 cabinetI bought a pai of these woofers to put in the br1 cab, And oh my god thy sound so sweet....The bass is just shacking my apt and this is the first bookshelf speakers i own and i never thought thy could hang with my onkyo tx nr 828....The woocer sound so good that i bought 3 more pairs of these woofers....Need to save up money for 3 more pairs of the bd 1 cab....I got this 6.5 woofer teamed up with the goodwood silkie tweeter and got the woofer on a 2nd order butterworth crossover 600/7000hz and thy sound very good and awesome bass to....I CANT WAIT TO GET THE 3 MORE BR1 CABS I LOVE. THEM.....So far i got 2 pairs of the Br 1 cabs..1 with the 6.5 poly woofer(gooldwood)with goldwood silk dome tweeter and the other 1 with 6.5 papper woofer by grs with the silk dome tweeter by dayton adudio...Thank you P.e
Date published: 2015-04-17
Rated 5 out of 5 by from Speaker repairThese woofers were an excellent replacement for the original woofers in a pair of Proton speakers which had worn out speaker surround foam. Less expensive than re foam kit, easier to install,and sound great.
Date published: 2015-03-01
Rated 5 out of 5 by from Great ReplacementBought a pair to replace sub par drivers in an old set of Realistic Optimus STS-65s. Much tighter and better low end extension. The cabinets turned out to be perfect size for the sealed parameters of this driver so I sealed the ports and so far they are just getting better as they break in. Great value.
Date published: 2015-02-09
Rated 5 out of 5 by from Great sound at a low priceThese smoke the blown woofers in my Sony 3 way bookshelf speakers.Thanks PE!
Date published: 2014-05-26
Rated 5 out of 5 by from Works as i hoped it would.Tried to pair 2 of these with some 2 inch tweeters. Tweeters didn't survive the install. Long story. But these are put in a small box right in the center under my 82'' tv. Definitely helps out with the vocals. As far as musical ability the bass is a little punchy. I should have aimed for a little lower hz but i hardly do music on my surround sound anyways.
Date published: 2014-03-06
Rated 4 out of 5 by from Replacing old and worn out parts.I bought these to replace the worn out OEM drivers in a set of EPI bookshelf speakers. After researching this particular set, I learned that the Original drivers were a little lacking in performance and other people were going with another driver so I decided to replace instead of refoam/recone. So far, so good. They sound really good, but I haven't had a chance to really crank 'em up. (Looking forward to that.)
Date published: 2014-03-04
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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-express.com  for a prompt reply.
GRS 6PF-8 6-1/2" Paper Cone Foam Surround Woofer

I am running a ported box and notice the description says sealed. are these a poor choice for ported? I was also looking at the pr8 poly version. would they be a better choice for a ported box?

Asked by: mikem68
Both of these options are really going to be best suited for sealed enclosures. A very nice woofer suitable for a ported application would be our Dayton DC160-8.http://www.parts-express.com/dayton-audio-dc160-8-6-1-2-classic-woofer--295-305
Answered by: MattP
Date published: 2015-07-09

What's the difference between the PR-8 and PF-8 . . . I'm looking to replace the speakers in my Boston A40's

Asked by: Miltster
The PR-8 uses a poly cone and rubber surround, the PF-8 uses a paper cone and foam surround.
Answered by: MattP
Date published: 2015-02-17

Can i use these speakers for the  midrange?

Asked by: JPDiamond
Yes this would work fine as a midrange.
Answered by: MattP
Date published: 2015-01-20

2.5 Khz two way crossover?

Could I use Dayton Audio XO2W-2.5K 2-Way Speaker Crossover 2,500 Hz with two of these in parallel for 4ohm load.Thanks in advance
Asked by: Bigsound
Yes two of these in parallel will work with that crossover.
Answered by: MattP
Date published: 2013-10-18

free air?

how would this work in a car free air? any ideas
Asked by: Sancho89
This would be a good choice for a free air application. You can expect 40-50 Hz in the right place.
Answered by: MattP
Date published: 2013-09-12

Is an SPL chart or Impedance chart available?

I would like to use these in a speaker project, but I don't have the equipment to generate these charts myself.
Asked by: Trent
Hi, Trent. When we have detailed specifications, graphs, charts, and the like available, they will be linked under the "Manuals/Resources" heading along the right-hand side of the product page. On this particular driver, we do not have any detailed specifications, unfortunately.
Answered by: RussR
Date published: 2011-04-13
  • 2015-10-10T08:23CST
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  • clientName_PartsExpressInternational
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