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

db104

10-inch single voice coil 4 Ohm subwoofer

Available Finishes:
Additional Images

Incredible Sound/Affordable Price

  • Polypropylene cone with a rigid ABS dustcap to stiffen the cone for greater mechanical stability and lower distortion.
  • Marine Certified Polk db Series speakers are built tough to withstand the toughest environments so they are perfect for use in boats of all types. That's why Correct Craft offers Polk Audio speakers in their award-winning Nautiques ski and wakeboarding boats.
  • Santoprene surround is impervious to extremes in temperature, humidity and exposure to sunlight for excellent long term reliability.
  • Fire-retardant flat NOMEX Spider allows extended linear motion while providing highly reliable mechanical and thermal stability.
  • Double venting of the 4-layer Kapton Voice Coil Former, Cone/Coil Coupler and Pole Piece contribute to the high power handling and reliability of the db Series subs.
  • As with all Polk Audio subwoofers, the voice coil alignment, motor and suspension were optimized using a state-of-the-art Klippel laser analyzer. The result is superior cone travel linearity for flatter response and lower distortion.
  • Dual Voice Coil version also available - db104DVC

Driver Complement

Subwoofer
Quantity
Diameter10" (25.40cm) 
TypeDynamic Balance Polymer Composite dish cone 

Electrical

Total Frequency Response28-200 
Nominal Impedance4 ohms
Efficiency86 dB
Power Handling
Continuous270 watts
Peak540 watts
Voice Coil
Driver Diameter2" (5.08cm) 

Thiele / Small Parameters

Resonant Frequency37 Hz
Xmax
Xmax Linear0.3 inch / 7.5 mm 
Xmax Mechanical1.0 inch / 25.4 mm 
Recommended EnclosureSealed / Ported / Bandpass 
LE1.85 mH
SD54.25 sq. in. / 350 sq. cm. 
VAS0.85 cu. ft. / 24.0 L 
QTS0.57 
QES0.62 
QMS7.0 

Dimensions

Cut-Out Diameter9 1/16" (23.02cm) 
Driver Mounting Depth
Top Mount5 1/2" (13.97cm) 
Bottom Mount6 1/4" (15.88cm) 

Warranty

Speaker Warranty1 Year Warranty 

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.

db104 Media

db104 Literature

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Series Catalogs

db104 Accessories