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Full-Range 8" Speaker Pioneer Type B20FU20-51FW

GRS
Part #292-430

Full-Range 8" Speaker Pioneer Type B20FU20-51FW

GRS
Part #292-430  
The GRS 8FR-8 full-range 8" speaker is engineered to withstand rigorous commercial use, but will also deliver great results when used in point-source hi-fi applications.
Key Features
  • Replacement for Pioneer B20FU20-51FW
  • GRS quality construction
  • 1 year warranty
  • Superb multipurpose speaker for DIY projects
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MSRP: $22.99
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Overview

Full-Range 8" Speaker Pioneer Type B20FU20-51FW

The GRS 8FR-8 full-range 8" speaker features a paper cone with poly foam surround. A whizzer cone extends high frequency response and dispersion. Engineered to withstand rigorous commercial use, this driver will also deliver great results when used in point-source hi-fi applications. Affordable pricing makes it perfect for DIY applications. Ideal replacement for the Pioneer B20FU20-51FW (also known in DIY communities as the BOFU)

Product Details

BrandGRS
Model8FR-8
Part Number292-430
UPC844632089800
Unit of MeasureEach
Weight4.15

Product Specifications

Nominal Diameter8"
Power Handling (RMS)60 Watts
Power Handling (MAX)120 Watts
Impedance8Ω
Frequency Response39 to 16,000Hz
Sensitivity90dB 2.83V/1m
Voice Coil Diameter1.5"

Thiele-Small Parameters

Resonant Frequency (Fs)45Hz
DC Resistance (Re)7.3Ω
Voice Coil Inductance (Le)1.2mH
Mechanical Q (Qms)4.83
Electromagnetic Q (Qes)0.63
Total Q (Qts)0.56
Compliance Equivalent Volume (Vas)1.31ft³
Mechanical Compliance of Suspension (Cms)0.56mm/N
BL Product (BL)8.5T·m
Diaphragm Mass Inc. Airload (Mms)22.2g
Maximum Linear Excursion (Xmax)3mm
Surface Area of Cone (Sd)49.6cm²

Materials of Construction

Cone MaterialPaper
Magnet MaterialFerrite

Mounting Information

Overall Outside Diameter8"
Baffle Cutout Diameter7.25"
Depth3.875"
# Mounting Holes4

Parts Express Staff Recommended Enclosure Volume

Sealed Volume0.75ft³
Sealed F377.5Hz
Vented Volume1ft³
Vented F349.3Hz

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