5 out of 5
Pricing Note
Product Description
Manufacturer Part Number: 4FR-8
The GRS 4FR-8 is perfect for compact designs that require wide-bandwidth, high-sensitivity performance at an economical price. It's also a drop-in replacement for other popular 4-1/2" full-range drivers.
Key Features:
Overview:
GRS 4FR-8 Full-Range 4-1/2" Speaker Pioneer Type A11EC80-02F
GRS 4FR-8 full-range 4-1/2" speaker features a well-damped paper cone and long-lasting treated fabric surround. Its design parameters have been carefully chosen to suit a wide variety of enclosures for hi-fi or commercial use, and it's great for use as a full-range driver or as a high-sensitivity midwoofer.
The large ceramic motor structure and lightweight Kapton voice coil former ensure crisp, highly-dynamic reproduction. This driver is a perfect drop-in replacement for the classic Pioneer model A11EC80-02F full-range driver, or other popular 4-1/2" full-range drivers.
Specification:
Manuals & Resources:
The GRS 4FR-8 is perfect for compact designs that require wide-bandwidth, high-sensitivity performance at an economical price. It's also a drop-in replacement for other popular 4-1/2" full-range drivers.
Key Features:
- Replacement for Pioneer A11EC80-02F
- Extended bandwidth and high sensitivity
- Natural-sounding paper cone
- Quality GRS construction
Overview:
GRS 4FR-8 Full-Range 4-1/2" Speaker Pioneer Type A11EC80-02F
GRS 4FR-8 full-range 4-1/2" speaker features a well-damped paper cone and long-lasting treated fabric surround. Its design parameters have been carefully chosen to suit a wide variety of enclosures for hi-fi or commercial use, and it's great for use as a full-range driver or as a high-sensitivity midwoofer.
The large ceramic motor structure and lightweight Kapton voice coil former ensure crisp, highly-dynamic reproduction. This driver is a perfect drop-in replacement for the classic Pioneer model A11EC80-02F full-range driver, or other popular 4-1/2" full-range drivers.
Specification:
Product Details | |
|---|---|
| Brand | GRS |
| Model | 4FR-8 |
| Part Number | 292-434 |
| UPC | 844632091391 |
| Unit of Measure | Each |
| Weight | 2.15 |
Product Specifications | |
|---|---|
| Nominal Diameter | 4-1/2" |
| Bolt Circle Diameter | 4.72 |
| Power Handling (RMS) | 15 Watts |
| Power Handling (MAX) | 30 Watts |
| Impedance | 8Ω |
| Frequency Response | 100 to 10,000Hz |
| Sensitivity | 89dB 2.83V/1m |
| Voice Coil Diameter | 1" |
Thiele-Small Parameters | |
|---|---|
| Resonant Frequency (Fs) | 127Hz |
| DC Resistance (Re) | 6.9Ω |
| Voice Coil Inductance (Le) | 0.7mH |
| Mechanical Q (Qms) | 6.71 |
| Electromagnetic Q (Qes) | 0.78 |
| Total Q (Qts) | 0.7 |
| Compliance Equivalent Volume (Vas) | 0.06ft³ |
| Mechanical Compliance of Suspension (Cms) | 0.27mm/N |
| BL Product (BL) | 6.4T·m |
| Diaphragm Mass Inc. Airload (Mms) | 5.8g |
| Maximum Linear Excursion (Xmax) | 1mm |
| Surface Area of Cone (Sd) | 66.1cm² |
Materials of Construction | |
|---|---|
| Cone Material | Paper |
| Surround Material | Cloth |
| Basket / Frame Material | Steel |
| Magnet Material | Ferrite |
Mounting Information | |
|---|---|
| Overall Outside Diameter | 4.5" |
| Baffle Cutout Diameter | 4.01" |
| Depth | 2.71" |
| # Mounting Holes | 4 |
Parts Express Staff Recommended Enclosure Volume | |
|---|---|
| Sealed Volume | 0.2ft³ |
| Sealed F3 | 104.5Hz |
| Vented Volume | 0.2ft³ |
| Vented F3 | 77.1Hz |
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 Jero
Date: July 20, 2023
Needed a basic replacement for a Roland Microcube, after a few tries, found one that fit!
Rating: 
[5 of 5 Stars!]
[5 of 5 Stars!]
By John Maddox
Date: April 21, 2022
The 4.5 full-range speaker plays big, backed by a serious magnet. Good quality product, weighing in at 2.1 lbs.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By thorick1
Date: January 11, 2017
great sounding speakers for the price
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By Envoy
Date: October 10, 2016
Well made speaker that worked good as a replacement in the subwoofer for my computer speakers.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
Items 1 - 4 of 4 reviews
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