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Goldwood GW-4028/S 4" Woofer Shielded

GoldwoodPart # 290-373
Model: GW-4028/S
These drivers feature a poly-mica cone, 1" voice coil, and rubber surround, making them great for small home theater projects.
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MSRP: $29.99
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Overview

Goldwood GW-4028/S 4" Woofer Shielded

These drivers feature a poly-mica cone, 1" voice coil, and rubber surround, making them great for small home theater projects. With an extremely small stray magnetic field, they can be used very close to CRT-based monitors.

Product Details

BrandGoldwood
ModelGW-4028/S
Part Number290-373
UPC643420100259
Unit of MeasureEach
Weight2.65

Product Specifications

Nominal Diameter4"
Power Handling (RMS)40 Watts
Power Handling (MAX)70 Watts
Impedance8Ω
Frequency Response70 to 10,000Hz
Sensitivity83dB 2.83V/1m
Voice Coil Diameter1"

Thiele-Small Parameters

Resonant Frequency (Fs)83.1Hz
DC Resistance (Re)7.1Ω
Voice Coil Inductance (Le)0.4mH
Mechanical Q (Qms)2.4
Electromagnetic Q (Qes)1
Total Q (Qts)0.7
Compliance Equivalent Volume (Vas)0.07ft³
Mechanical Compliance of Suspension (Cms)0.61mm/N
BL Product (BL)4.8T·m
Diaphragm Mass Inc. Airload (Mms)6g
Maximum Linear Excursion (Xmax)1.5mm
Surface Area of Cone (Sd)49.5cm²

Materials of Construction

Cone MaterialPoly
Surround MaterialRubber
Magnet MaterialFerrite

Mounting Information

Overall Outside Diameter4.375"
Baffle Cutout Diameter3.75"
Depth2.75"
# Mounting Holes4

Parts Express Staff Recommended Enclosure Volume

Sealed Volume0.1ft³
Sealed F397.2Hz
Vented Volume0.2ft³
Vented F364.4Hz

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California Prop 65

WARNING: Cancer and Reproductive Harm

www.P65Warnings.ca.gov