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GRS 8SW-4HE 8" High Excursion Subwoofer 4 Ohm

GRS
Part #292-816

GRS 8SW-4HE 8" High Excursion Subwoofer 4 Ohm

GRS
Part #292-816  
Model: 8SW-4HE
The versatile 8SW-4HE 8” high excursion subwoofer from GRS is designed to produce excellent low frequency extension in a variety of designs. Suitable for both sealed and vented enclosures, this driver the ideal replacement or upgrade for your existing subwoofers with worn out or blown drivers. Featuring extensive venting, rubber surround, high temperature voice coil, low Fs, and 10.5 mm of excursion the 8SW-4HE is built for remarkable bass response on a budget.
Key Features
  • High excursion and low Fs to produce powerful low frequency output
  • 2” voice coil on a thick aluminum former to handle up to 150 watts RMS
  • Venting under the spider, through the pole piece, and in the magnetic gap for excellent heat dissipation
  • Durable reinforced paper cone with rubber surround produces reliable and consistent performance
  • Extended frame and bumped back plate allow ample clearance for high excursion
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Overview

GRS 8SW-4HE 8" High Excursion Subwoofer 4 Ohm

GRS 8SW-4HE 8" High Excursion Subwoofer

Engineered for extended low frequency response and flexibility

The GRS 8SW-4HE 8” high excursion subwoofer from GRS is an ideal replacement driver for existing subwoofer systems or an excellent choice for new economical designs. Capable of producing powerful bass response in both sealed and vented designs, the 8SW-4HE is suitable as a drop-in replacement for most existing 8” subwoofers.

Key Specs:

  • Nominal Diameter: 8"
  • Power Handling (RMS): 150W
  • Power Handling (MAX): 300W
  • Impedance: 4 Ω
  • Frequency Response: 30-700Hz
  • Sensitivity: 85dB 2.83V/1m
  • Voice Coil Diameter: 2"
  • Maximum Linear Excursion: 10.8mm

Frequency Response & Impedance Curve

the GRS 8SW-4HE has a bass-centric response from 30Hz up to 700Hz and is highly efficient within its passband. This efficiency and a low QTS lends itself well to both vented and sealed subwoofers for incredibly deep bass from an 8-inch driver.

Bass-worthy construction

Extensive venting through the frame, pole piece, and magnetic gap dissipates excess heat to keep power compression to a minimum, even when driven hard for long periods. The rigid paper cone is supported by a large diameter spider and rubber surround to keep excursion linear while providing reliable performance. With a high temperature 2” voice coil wound on a thick aluminum former the 8SW-4HE can comfortably handle up to 150 watts RMS of power.

Shop all GRS High Excursion Subwoofers

GRS 10SW-4HE

Nominal Diameter: 10"
Frequency Response: 32-1,000Hz
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GRS 12SW-4HE

Nominal Diameter: 12"
Frequency Response: 20-500Hz
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GRS 15SSW-4HE

Nominal Diameter: 15"
Frequency Response: 26-1,000Hz
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Product Details

BrandGRS
Model8SW-4HE
Part Number292-816
UPC848864070469
Unit of MeasureEach
Weight8.35

Product Specifications

Nominal Diameter8"
Bolt Circle Diameter7.8
Power Handling (RMS)150 Watts
Power Handling (MAX)300 Watts
Impedance4Ω
Frequency Response30 to 700Hz
Sensitivity85dB 2.83V/1m
Voice Coil Diameter2"
Magnet Weight57oz.

Thiele-Small Parameters

Resonant Frequency (Fs)24.9Hz
DC Resistance (Re)3.8Ω
Voice Coil Inductance (Le)2.7mH
Mechanical Q (Qms)4.42
Electromagnetic Q (Qes)0.51
Total Q (Qts)0.45
Compliance Equivalent Volume (Vas)1.12ft³
Mechanical Compliance of Suspension (Cms)0.44mm/N
BL Product (BL)10.5T·m
Diaphragm Mass Inc. Airload (Mms)93.7g
Maximum Linear Excursion (Xmax)10.8mm
Surface Area of Cone (Sd)227cm²

Materials of Construction

Cone MaterialCoated Paper
Surround MaterialRubber
Voice Coil Wire MaterialCopper
Voice Coil FormerAluminum
Basket / Frame MaterialSteel
Magnet MaterialFerrite

Mounting Information

Overall Outside Diameter8.23"
Baffle Cutout Diameter7.125"
Depth4.6"
# Mounting Holes8

Parts Express Staff Recommended Enclosure Volume

Sealed Volume0.5ft³
Sealed F346Hz
Vented Volume1ft³
Vented F327Hz

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