Car Subwoofers

This product is a vintage Polk model and is not available for sale, but it may still be available in some stores as a closeout or used product. The following text is taken from the original sales brochure for this product and does not reflect current availability. If you happen to have any question or concerns about this product, or any other Polk Audio product, feel free to contact our Customer Service Department at 1-800-377-7655 Monday - Friday, 9am - 5:30pm EST


8-inch single voice coil 4 Ohm subwoofer

Available Finishes:

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The kind of bass performance you can hear!

•1mm thick mineral filled polymer composite cones mean an ultra-stiff and superbly strong cone design that can withstand the tremendous pressures produced by today's demanding listener.

•Genuine rubber surrounds completely eliminate any chance of the dreaded "foam rot"!

•Injection molded solid polypropylene dust cap prevents any distortion due to the unwanted build up of air pressure behind the cap.

•A precision 4-layer, 1.5-inch voice coil completely handles harmful heat produced when your amp is realy pumping out the power.

•Using a special vented pole piece allows cooling air to circulate around the critical voice coil extending the longlife capabilities beyond other designs.

Driver Complement

Diameter8" (20.32cm) 


Total Frequency Response20 - 300 Hz 
Nominal Impedance4 ohms
Efficiency90 dB
Power Handling
Continuous125 watts
Peak300 watts
Voice Coil
Driver Diameter1 1/2" (3.81cm) 

Thiele / Small Parameters

Resonant Frequency44.64 Hz
Xmax Linear0.177 in. / 4.5 mm 
Xmax Mechanical1.0 in. / 25.4 mm 
Recommended EnclosureSealed / Ported / or Bandpass 
LE1.57 mH
SD33.17 sq. in. / 214 sq. cm. 
VAS1.27 cu. ft. / 36 L 


Cut-Out Diameter7 1/8" (18.10cm) 
Driver Mounting Depth
Top Mount3 7/8" (9.84cm) 
Bottom Mount4 1/4" (10.79cm) 


Speaker Warranty1 Year Parts and labor 

Specifications, dimensions and features subject to change without notice. For more information call us at 1-800-377-7655 (USA and Canada). Outside of North America call +1 (410) 358-3600.

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