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.
Highlights
- 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
Product Details
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.
Article number3FR-4
EAN0848864015194
Woofer TypeMidrange / Midbass Drivers
Nominal Diameter3"
Power Handling (RMS)10 Watts
Power Handling (max)20 Watts
Impedance (Z)4 ohms
Sensitivity (SPL at 1m / 2.83V)84 dB
Frequency Response135 to 16,000 Hz
Voice Coil Diameter0.75"
DC Resistance (Re)4.00 ohms
Voice Coil Inductance (Le)0.39 mH
Resonant Frequency (Fs)135 Hz
Mechanical Q (Qms)4.11
Electromagnetic Q (Qes)1.11
Total Q (Qts)0.88
Compliance Equivalent Volume (Vas)0.03 ft.³
Maximum Linear Excursion (Xmax)2 mm
Cone / Diaphragm MaterialPaper
Surround MaterialFoam
Basket / Frame MaterialSteel
Magnet MaterialFerrite
Overall Outside Diameter3.75"
Overall Depth1.69"
Baffle Cutout Diameter2.82"
# Mounting Holes4
Sealed Volume0.08 ft.³
Sealed F3131 Hz
Vented Volume0.15 ft.³
Vented F378 Hz