4FR-8Midrange / Midbass Drivers & Full-Range Speakers

Full-Range 4-1/2" Speaker Pioneer Type A11EC80-02F 8 Ohm

The 4FR-8 full range speaker is a drop-in replacement for the Pioneer A11EC80-02F and many other classic 4-1/2" full range drivers. The paper cone and treated cloth surround lend a smooth richness to the sound, making it a favorite as a replacement speaker, and as a full range or high-efficiency midwoofer in original designs.

Product Details

Our 4FR-8 full-range 4-1/2" speaker features a well-damped paper cone and long-lasting treated fabric surround. Its design parameters have been carefully chosen to suit a wide variety of enclosures for hi-fi or commercial use, and it's great for use as a full-range driver or as a high-sensitivity midwoofer.

The large ceramic motor structure and lightweight Kapton voice coil former ensure crisp, highly-dynamic reproduction. This driver is a perfect drop-in replacement for the classic Pioneer model A11EC80-02F full-range driver, or other popular 4-1/2" full-range drivers.

Quick Facts

  • Replacement for Pioneer A11EC80-02F
  • Extended bandwidth and high sensitivity
  • Natural-sounding paper cone
  • Quality GRS construction


Product Specifications

Nominal Diameter4-1/2"
Power Handling (RMS)15 Watts
Power Handling (max)30 Watts
Impedance8 ohms
Frequency Response100 to 10,000 Hz
Sensitivity91 dB 1W/1m
Voice Coil Diameter1"

Thiele-Small Parameters

Resonant Frequency (Fs)100 Hz
DC Resistance (Re)8.11 ohms
Voice Coil Inductance (Le)0.71 mH
Mechanical Q (Qms)5.14
Electromagnetic Q (Qes)0.98
Total Q (Qts)0.82
Compliance Equivalent Volume (Vas)0.11 ft.³
Maximum Linear Excursion (Xmax)1 mm

Materials of Construction

Cone MaterialPaper
Surround MaterialCloth
Basket / Frame MaterialSteel
Magnet MaterialFerrite

Mounting Information

Overall Outside Diameter4.5"
Baffle Cutout Diameter4.01"
# Mounting Holes4

Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)

Sealed Volume0.05 ft.³
Sealed F3135 Hz
Vented Volume0.1 ft.³
Vented F395 Hz