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GRS 8SW-4 8" Poly Cone Subwoofer 4 Ohm

GRS
Part #292-480

GRS 8SW-4 8" Poly Cone Subwoofer 4 Ohm

GRS
Part #292-480  
Model: 8SW-4
The GRS 8SW-4 8" 4 ohm poly cone driver is a true bargain in replacement subwoofers! This economical sub features a large diameter voice coil, durable polypropylene cone, and extended excursion for high energy bass reproduction.
Key Features
  • Polypropylene cone for perfect balance of stiffness, mass, and self-damping
  • Butyl rubber surround ensures high excursion and long-term durability
  • Large 1-1/2" voice coil and bumped back plate enable high power handling
  • Long-throw design for deep, powerful bass
Your Price: $19.98
MSRP: $25.99
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Overview

GRS 8SW-4 8" Poly Cone Subwoofer 4 Ohm

Now you can replace blown or damaged subwoofers with new drivers that equal or outperform the original! GRS poly cone subwoofers are the perfect replacement for tired, worn-out subwoofers in a variety of audio gear and even work great for new designs. Their handsome polypropylene cones provide durability and good looks, while the large vented magnet assemblies and extended voice coils enable long-throw performance and authoritative bass in a variety of enclosures.

The 8" model features a 1-1/2" diameter voice coil with extended 6mm excursion for solid bass performance in compact sealed and vented enclosures. These versatile subs are also rugged enough to be used in dipole and automotive infinite baffle applications.

See the below list of recommended enclosure alignments for new designs.

Recommended sealed enclosure: 1.0 ft^3, F3 = 48 Hz, Qtc: 1.16

Recommended vented enclosure: 1.0 ft^3, Fb = 40 Hz, F3 = 34 Hz

Product Details

BrandGRS
Model8SW-4
Part Number292-480
UPC848864020198
Unit of MeasureEach
Weight3.8

Product Specifications

Nominal Diameter8"
Bolt Circle Diameter7.875
Power Handling (RMS)80 Watts
Power Handling (MAX)160 Watts
Impedance4Ω
Frequency Response40 to 800Hz
Sensitivity89dB 2.83V/1m
Voice Coil Diameter1.5"

Thiele-Small Parameters

Resonant Frequency (Fs)48Hz
DC Resistance (Re)3.8Ω
Voice Coil Inductance (Le)0.8mH
Mechanical Q (Qms)4.33
Electromagnetic Q (Qes)1.13
Total Q (Qts)0.89
Compliance Equivalent Volume (Vas)0.78ft³
Mechanical Compliance of Suspension (Cms)0.33mm/N
BL Product (BL)5.8T·m
Diaphragm Mass Inc. Airload (Mms)33.2g
Maximum Linear Excursion (Xmax)6mm
Surface Area of Cone (Sd)216.8cm²

Materials of Construction

Cone MaterialPoly
Surround MaterialRubber
Voice Coil Wire MaterialCopper
Basket / Frame MaterialSteel
Magnet MaterialFerrite

Mounting Information

Overall Outside Diameter8.25"
Baffle Cutout Diameter7.25"
Depth4"
# Mounting Holes8

Parts Express Staff Recommended Enclosure Volume

Sealed Volume1ft³
Sealed F352.9Hz
Vented Volume1ft³
Vented F342.9Hz

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