• Home
  • GRS 3FR-4 Full-Range 3" Speaker Driver 4 Ohm

GRS 3FR-4 Full-Range 3" Speaker Driver 4 Ohm

GRSPart # 292-436
Model: 3FR-4
The GRS 3FR-4 3" driver makes a great economical replacement full-range speaker for devices like multimedia speakers, table radios, and home theater soundbar systems. It’s also an excellent choice for new designs. 4 ohm impedance.

Key Features

  • Coated paper cone with foam surround for clear sound
  • Pincushion-shape frame with front gasket
  • Economical ferrite magnet assembly
  • Quality GRS construction and 1-year warranty
Your Price: $5.69
MSRP: $7.99
Save $2.30 (29%)
Bulk Pricing
Quantity:Qty: 1-3 $5.69/ea
Quantity:Qty: 4+ $5.12/ea
Only 1 In Stock More due on 9/12/2025
Get Notified When Available

We'll send you an email when GRS 3FR-4 Full-Range 3" Speaker Driver 4 Ohm is back in stock or available for preorder.

Order in the next 1 hr 31 min to ship today. Details
Free Shipping available on orders over $99.00 in the US. Details
60 Day No Hassle Return Policy

Overview

GRS 3FR-4 Full-Range 3" Speaker Driver 4 Ohm

Why pay more? The GRS 3FR-4 is a great replacement driver for the widely-used, 3"-size full range drivers found commonly in home theater systems, table radios, “sound bars”, and multimedia speaker systems, among many other uses. It’s also useful as a replacement for 3" woofers.

A sturdy stamped steel frame with “pincushion”-shaped mounting flange supports a robust ferrite ceramic magnet, and the coated paper cone with foam surround delivers clear sound that you might not expect from a driver this affordable.

Product Details

BrandGRS
Model3FR-4
Part Number292-436
UPC848864015194
Unit of MeasureEach
Weight0.7

Product Specifications

Nominal Diameter3"
Power Handling (RMS)10 Watts
Power Handling (MAX)20 Watts
Impedance4Ω
Frequency Response100 to 16,000Hz
Sensitivity88dB 2.83V/1m
Voice Coil Diameter0.75"

Thiele-Small Parameters

Resonant Frequency (Fs)145Hz
DC Resistance (Re)3.5Ω
Voice Coil Inductance (Le)0.4mH
Mechanical Q (Qms)4.76
Electromagnetic Q (Qes)1.03
Total Q (Qts)0.85
Compliance Equivalent Volume (Vas)0.02ft³
Mechanical Compliance of Suspension (Cms)0.4mm/N
BL Product (BL)3T·m
Diaphragm Mass Inc. Airload (Mms)3g
Maximum Linear Excursion (Xmax)2mm
Surface Area of Cone (Sd)31.2cm²

Materials of Construction

Cone MaterialPaper
Surround MaterialFoam
Basket / Frame MaterialSteel
Magnet MaterialFerrite

Mounting Information

Overall Outside Diameter3.75"
Baffle Cutout Diameter2.82"
Depth1.69"
# Mounting Holes4

Parts Express Staff Recommended Enclosure Volume

Sealed Volume0.06ft³
Sealed F3135.1Hz
Vented Volume0.06ft³
Vented F3101.6Hz

Specifications

Q&A

Reviews

Manuals & Resources

California Prop 65

WARNING: Cancer and Reproductive Harm

www.P65Warnings.ca.gov