12" Paper Cone Foam Surround Woofer

Optimized for use in acoustic suspension designs, the 12PF-8 makes a great replacement woofer for many vintage speaker systems. With a poly-laminated paper cone and treated foam surround, it's just as easy to use in your own novel speaker building projects.

Product Details

Our 12PF-8 12" poly-laminated paper cone woofers are perfect for use in sealed-box home theater and music systems. Thanks to their carefully optimized parameters, these 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 Diameter12"
Power Handling (RMS)120 Watts
Power Handling (max)240 Watts
Impedance8 ohms
Frequency Response35 to 5,000 Hz
Sensitivity87 dB 1W/1m
Voice Coil Diameter1.5"

Thiele-Small Parameters

Resonant Frequency (Fs)35 Hz
DC Resistance (Re)7.56 ohms
Voice Coil Inductance (Le)1.15 mH
Mechanical Q (Qms)5.97
Electromagnetic Q (Qes)2.08
Total Q (Qts)1.54
Compliance Equivalent Volume (Vas)5.28 ft.³
Maximum Linear Excursion (Xmax)3.5 mm

Materials of Construction

Cone MaterialTreated Paper
Magnet MaterialFerrite

Mounting Information

Overall Outside Diameter12"
Baffle Cutout Diameter11.0625"
# Mounting Holes8

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

Sealed Volume2.92 ft.³
Sealed F340 Hz
Vented Volume73 ft.³
Vented F319 Hz