5 out of 5
Pricing Note
Product Description
Manufacturer Part Number: 10PR-8
Many popular, classic 10" speaker designs can be replaced or upgraded with a GRS 10PR-8 poly cone woofer.
Key Features:
Overview:
GRS 10PR-8 10" Poly Cone Rubber Surround Woofer
Many popular, classic 10" speaker designs can be replaced or upgraded with a GRS 10PR-8 poly cone woofer. Thanks to their carefully optimized parameters, GRS 10PR-8 10" polypropylene cone woofers with butyl rubber surrounds offer a high degree of compatibility when used as replacement speakers-they also provide excellent performance in new projects, too.
Specification:
Manuals & Resources:
Many popular, classic 10" speaker designs can be replaced or upgraded with a GRS 10PR-8 poly cone woofer.
Key Features:
- 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
Overview:
GRS 10PR-8 10" Poly Cone Rubber Surround Woofer
Many popular, classic 10" speaker designs can be replaced or upgraded with a GRS 10PR-8 poly cone woofer. Thanks to their carefully optimized parameters, GRS 10PR-8 10" polypropylene cone woofers with butyl rubber surrounds offer a high degree of compatibility when used as replacement speakers-they also provide excellent performance in new projects, too.
Specification:
Product Details | |
|---|---|
| Brand | GRS |
| Model | 10PR-8 |
| Part Number | 292-421 |
| UPC | 844632088537 |
| Unit of Measure | Each |
| Weight | 4.85 |
Product Specifications | |
|---|---|
| Nominal Diameter | 10" |
| Power Handling (RMS) | 80 Watts |
| Power Handling (MAX) | 160 Watts |
| Impedance | 8Ω |
| Frequency Response | 35 to 3,000Hz |
| Sensitivity | 87dB 2.83V/1m |
| Voice Coil Diameter | 1.5" |
Thiele-Small Parameters | |
|---|---|
| Resonant Frequency (Fs) | 40Hz |
| DC Resistance (Re) | 7.3Ω |
| Voice Coil Inductance (Le) | 1.1mH |
| Mechanical Q (Qms) | 3.68 |
| Electromagnetic Q (Qes) | 1.32 |
| Total Q (Qts) | 0.97 |
| Compliance Equivalent Volume (Vas) | 2.02ft³ |
| Mechanical Compliance of Suspension (Cms) | 0.34mm/N |
| BL Product (BL) | 8T·m |
| Diaphragm Mass Inc. Airload (Mms) | 45.7g |
| Maximum Linear Excursion (Xmax) | 3mm |
| Surface Area of Cone (Sd) | 345.1cm² |
Materials of Construction | |
|---|---|
| Cone Material | Poly |
| Surround Material | Rubber |
| Magnet Material | Ferrite |
Mounting Information | |
|---|---|
| Overall Outside Diameter | 10" |
| Baffle Cutout Diameter | 9.25" |
| Depth | 4.125" |
| # Mounting Holes | 4 |
Parts Express Staff Recommended Enclosure Volume | |
|---|---|
| Sealed Volume | 1.5ft³ |
| Sealed F3 | 41Hz |
Manuals & Resources:
Attention CA Residents: Prop 65 Warning
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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Customer Reviews
By Jason Leadbetter
Date: September 21, 2025
Junk. Made 4 months and quit working. Spend more and find a quality woofer.
Rating: 
[5 of 5 Stars!]
[5 of 5 Stars!]
By Jeffrey Gill
Date: July 31, 2022
Failed after a few years. No where near as durable as the OEM drivers. Poor efficiency.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By Michael
Date: February 20, 2022
I opened my package to see this horribly bent speaker. Really?
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
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