Polk Audio DB501


5-inch coaxial loudspeaker

Incredible Sound, Affordable Price

The db501 was designed to work with OEM factory systems, as well as with high-powered aftermarket head units and component power amps. With all the Polk features and technology, the db501 offers classic Polk performance and durability.

The db501 Features:

5-inch design affords easy installation into OEM factory spaces.

Dynamic Balance® polymer/mica composite mineral filled cone is stiff yet lightweight for big sound, little distortion.

Excellent replacement speaker for OEM and motorcycles (grilles and mounting hardware not included).

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.

19mm liquid-cooled silk/polymer composite dome tweeter with neodymium magnet for clear, detailed highs.

Low-mass Kapton voice coil former is lightweight for high sound output. Kapton’s high melting temperature (725°F/400°C!) ensures high power handling and kick-butt reliability.

Durable butyl rubber surround won’t fall apart under the stress of extreme temperatures, sunlight or time, for years of the great Polk sound.

Pole plate heat sink promotes better heat dissipation for superior power handling and reliability.

Flat spider for faster, longer excursion linear motion.

Flexible woven leads sewn directly into spider for greater reliability.

Rock solid, acoustically inert stamped steel basket finished in rustproof gun metal gray.

Stainless steel mounting hardware.

One year parts & labor warranty.

All Polk products are made using the best materials and the most advanced manufacturing techniques. They pass the industry’s most exhaustive quality tests, including drop testing, extreme signal response and UV & salt exposure testing. Polk loudspeakers are built to perform for a lifetime.


Driver Complement

Quantity 1
Diameter 3/4″ (1.91cm)
Type Silk/polymer dome
Mid / Woofer
Quantity 1
Diameter 4″ (10.16cm)
Type Dynamic Balance driver with polymer/mica composite cone with rubber surround


Total Frequency Response 65Hz-22kHz
Nominal Impedance 4 ohms
Efficiency 93 dB
Power Handling
Continuous 45 watts
Peak 135 watts


Cut-Out Diameter 3 11/16″ (9.37cm)
Full-Range Mounting Depth
Top Mount 1 13/16″ (4.60cm)
Bottom Mount 1 15/16″ (4.92cm)


Unit of Measure pair


Speaker Warranty 1 year parts and labor (original purchaser)

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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