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PEX GRS 5PF 8 5 1/4" Paper Cone Foam Surround Woofer P2348538PEX-292-405 https://cdnimages.opentip.com/full/PEX/PEX-292-405.jpg GRS 5PF 8 5 1/4" Paper Cone Foam Surround Woofer Manufacturer Part Number: 5PF-8The GRS 5PF-8 5-1/4\" woofers feature a poly-laminate coated cone and a foam surround. They are ideally suited for all sealed-box speaker applications.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 5PF-8 5-1/4\" Paper Cone Foam Surround WooferThe GRS 5PF-8 5-1/4\" woofers feature a poly-laminate coated cone and a foam surround. They are ideally suited for all sealed-box speaker applications. Thanks to their carefully optimized parameters, GRS 5PF-8 5-1/4\" 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 Model5PF-8 Part Number292-405 UPC844632088452 Unit of MeasureEach Weight1.15 Product Specifications Nominal Diameter5-1/4\" Power Handling (RMS)70 Watts Power Handling (MAX)130 Watts Impedance8Ω Frequency Response90 to 8,000Hz Sensitivity84dB 2.83V/1m Voice Coil Diameter1\" Thiele-Small Parameters Resonant Frequency (Fs)100Hz DC Resistance (Re)7.45Ω Voice Coil Inductance (Le)0.85mH Mechanical Q (Qms)4.87 Electromagnetic Q (Qes)1.97 Total Q (Qts)1.4 Compliance Equivalent Volume (Vas)0.11ft³ Maximum Linear Excursion (Xmax)2.5mm Materials of Construction Cone MaterialTreated Paper Surround MaterialFoam Magnet MaterialFerrite Mounting Information Overall Outside Diameter5.0625\" Baffle Cutout Diameter4.75\" Depth2.3125\" # Mounting Holes4 Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion) Sealed Volume0.08ft³ Sealed F3107Hz Vented Volume1.26ft³ Vented F354Hz 2348538 844632088452 1.15lbs 0.00 0.00 0.00
GRS
9.70 2024-01-30 782 In Stock
customer review - by , April 4, 2021
5/ 5stars
Had pair of old old Radio Shack Optimus speakers as well as Realistic speakers. Another reviewer had the latter and said speakers were drop-in replacement. This is confirmed.For the Optimus speakers, the speakers were a little big but this was easy to fix. I traced the old speaker on to the new speaker with a thin black marker. Then used my grinder to remove the excess metal. Easy modification. Replacement speakers dropped right in.Few notes- The ohms of the replacement speakers are 8. My Optimus had 7 in them and the Realistic were 6. I was fine with it. No change in sound. Going up in ohms is generally easier for a system to consume vs going down.- The replacement speakers have the positive and negative terminals in reverse compared to the Radio Shack speakers. The plus is on the right but on the Radio Shack the plus is on the left. Not really a problem but something to pay attention to when installing the new ones.Overall, I'm very happy. Got my old speakers working for under $50 (including parts). Sound great. Thanks for selling these, GRS.
customer review - by , June 6, 2020
5/ 5stars
This was a drop in replacement speaker for my Realistic Minimus -77 woofer. Sorry I don't have a completed install photo. I was in a hurry to hear the sound. You will have to crimp a larger slide on connector to one of the crossover leads to make the connection to the speaker however.

GRS 5PF-8 5-1/4" Paper Cone Foam Surround Woofer

stars Rating 5 | 2 reviews
Brand GRS
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UPC: 844632088452
SKU: PEX-292-405
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Product Description

Manufacturer Part Number: 5PF-8

The GRS 5PF-8 5-1/4" woofers feature a poly-laminate coated cone and a foam surround. They are ideally suited for all sealed-box speaker applications.

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 5PF-8 5-1/4" Paper Cone Foam Surround Woofer

The GRS 5PF-8 5-1/4" woofers feature a poly-laminate coated cone and a foam surround. They are ideally suited for all sealed-box speaker applications. Thanks to their carefully optimized parameters, GRS 5PF-8 5-1/4" 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 A Customer
Date: April 29, 2021
Had pair of old old Radio Shack Optimus speakers as well as Realistic speakers. Another reviewer had the latter and said speakers were drop-in replacement. This is confirmed.For the Optimus speakers, the speakers were a little big but this was easy to fix. I traced the old speaker on to the new speaker with a thin black marker. Then used my grinder to remove the excess metal. Easy modification. Replacement speakers dropped right in.Few notes- The ohms of the replacement speakers are 8. My Optimus had 7 in them and the Realistic were 6. I was fine with it. No change in sound. Going up in ohms is generally easier for a system to consume vs going down.- The replacement speakers have the positive and negative terminals in reverse compared to the Radio Shack speakers. The plus is on the right but on the Radio Shack the plus is on the left. Not really a problem but something to pay attention to when installing the new ones.Overall, I'm very happy. Got my old speakers working for under $50 (including parts). Sound great. Thanks for selling these, GRS.
Rating: 5 stars [5 of 5 Stars!]
By Orleans
Date: June 03, 2020
This was a drop in replacement speaker for my Realistic Minimus -77 woofer. Sorry I don't have a completed install photo. I was in a hurry to hear the sound. You will have to crimp a larger slide on connector to one of the crossover leads to make the connection to the speaker however.
Rating: 5 stars [5 of 5 Stars!]
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