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PEX GRS 4PF 8 4" Paper Cone Foam Surround Woofer P2348537PEX-292-404 https://cdnimages.opentip.com/full/PEX/PEX-292-404.jpg GRS 4PF 8 4" Paper Cone Foam Surround Woofer Manufacturer Part Number: 4PF-8Thanks to their carefully optimized parameters, GRS 4PF-8 4\" poly-laminated paper cone woofers offer a high degree of compatibility when used as replacement speakers.Key Features: 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 GRS 4PF-8 4\" Paper Cone Foam Surround WooferThanks to their carefully optimized parameters, GRS 4PF-8 4\" 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 Details BrandGRS Model4PF-8 Part Number292-404 UPC844632088445 Unit of MeasureEach Weight1.4 Product Specifications Nominal Diameter4\" Power Handling (RMS)40 Watts Power Handling (MAX)70 Watts Impedance8Ω Frequency Response100 to 10,000Hz Sensitivity84dB 2.83V/1m Voice Coil Diameter1\" Thiele-Small Parameters Resonant Frequency (Fs)98Hz DC Resistance (Re)7.49Ω Voice Coil Inductance (Le)0.88mH Mechanical Q (Qms)4.55 Electromagnetic Q (Qes)1.9 Total Q (Qts)1.34 Compliance Equivalent Volume (Vas)0.12ft³ Maximum Linear Excursion (Xmax)2.5mm Materials of Construction Cone MaterialTreated Paper Magnet MaterialFerrite Mounting Information Overall Outside Diameter4.125\" Baffle Cutout Diameter3.75\" Depth2.125\" # Mounting Holes4 Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion) Sealed Volume0.09ft³ Sealed F3104Hz Vented Volume1.26ft³ Vented F353Hz 2348537 844632088445 1.4000lbs 0.00 0.00 0.00
GRS
7.98 2025-04-26 328 In Stock
customer review - by , February 2, 2023
5/ 5stars
Nice speaker and the price was low enough to make repairing my Logitech bass speaker worthwhile. The quality was will within my expectations for the price paid.
customer review - by , August 8, 2021
5/ 5stars
I used four of these to fix an ancient Koss powered speaker set. They work perfectly and IMHO sound identical or better than the original drivers.
customer review - by , June 6, 2021
5/ 5stars
I've two of these to replace my Minimus 7 subs. They work good enough as I have added an actual sub to the system and no longer rely on just these two 4 subs to provide full bass.
customer review - by , June 6, 2021
5/ 5stars
A Great Replacement Speaker for cheap. Reviewers complain about the lack of bass. You must break in any new woofers (like a new pair of shoes). Drive the with as much low end as possible for 50 to 100 hours. The will work in the treated foam surrounds and the spiders.
customer review - by , February 2, 2021
5/ 5stars
Bought this to replace the woofer in my Creative Labs 2.1 speakers for the PC... perfect match and saved me quite a bit from having to buy a new set. works and sounds great.no mods necessary, exact drop in replacement.
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GRS 4PF-8 4" Paper Cone Foam Surround Woofer

stars Rating 5 | 5 reviews
Brand GRS
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UPC: 844632088445
SKU: PEX-292-404
Price:
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Product Description

Manufacturer Part Number: 4PF-8

Thanks to their carefully optimized parameters, GRS 4PF-8 4" poly-laminated paper cone woofers offer a high degree of compatibility when used as replacement speakers.

Key Features:
  • 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


GRS 4PF-8 4" Paper Cone Foam Surround Woofer

Thanks to their carefully optimized parameters, GRS 4PF-8 4" 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.

warning tips WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
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By MarkS
Date: February 19, 2023
Nice speaker and the price was low enough to make repairing my Logitech bass speaker worthwhile. The quality was will within my expectations for the price paid.
Rating: 5 stars [5 of 5 Stars!]
By Jose M Sanchez
Date: August 31, 2021
I used four of these to fix an ancient Koss powered speaker set. They work perfectly and IMHO sound identical or better than the original drivers.
Rating: 5 stars [5 of 5 Stars!]
By Brad Denman
Date: June 26, 2021
I've two of these to replace my Minimus 7 subs. They work good enough as I have added an actual sub to the system and no longer rely on just these two 4 subs to provide full bass.
Rating: 5 stars [5 of 5 Stars!]
By Samplerman
Date: June 10, 2021
A Great Replacement Speaker for cheap. Reviewers complain about the lack of bass. You must break in any new woofers (like a new pair of shoes). Drive the with as much low end as possible for 50 to 100 hours. The will work in the treated foam surrounds and the spiders.
Rating: 5 stars [5 of 5 Stars!]
By Tom Herman
Date: February 15, 2021
Bought this to replace the woofer in my Creative Labs 2.1 speakers for the PC... perfect match and saved me quite a bit from having to buy a new set. works and sounds great.no mods necessary, exact drop in replacement.
Rating: 5 stars [5 of 5 Stars!]
Items 1 - 5 of 5 reviews
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