6-1/2" Paper Cone Foam Surround Woofer

The 6PF-8 excels as a replacement woofer, and is also a prime performer in pioneering projects. Its practical characteristics are optimized for use in acoustic suspension designs.

Product Details

Thanks to their carefully optimized parameters, our 6PF-8 6-1/2" poly-laminated paper cone woofers offer a high degree of compatibility when used as replacement speakers—they also provide excellent performance in new projects, too.

Quick Facts

  • Perfect for use in sealed-box home theater and music systems
  • Poly-laminated paper cone, treated foam surround, and polymer dust cap
  • Smooth frequency response with minimal cone breakup


Product Specifications

Nominal Diameter6-1/2"
Power Handling (RMS)90 Watts
Power Handling (max)180 Watts
Impedance8 ohms
Frequency Response70 to 8,000 Hz
Sensitivity87 dB 1W/1m
Voice Coil Diameter1.5"

Thiele-Small Parameters

Resonant Frequency (Fs)82 Hz
DC Resistance (Re)7.59 ohms
Voice Coil Inductance (Le)1.09 mH
Mechanical Q (Qms)3.67
Electromagnetic Q (Qes)1.3
Total Q (Qts)0.95
Compliance Equivalent Volume (Vas)0.25 ft.³
Maximum Linear Excursion (Xmax)3 mm

Materials of Construction

Cone MaterialTreated Paper
Magnet MaterialFerrite

Mounting Information

Overall Outside Diameter6.5"
Baffle Cutout Diameter5.625"
# Mounting Holes4

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

Sealed Volume0.34 ft.³
Sealed F386 Hz
Vented Volume1.35 ft.³
Vented F347 Hz