Polk Audio DB651


6 1/2-inch mobile audio coaxial loudspeaker

Incredible Sound, Affordable Price

The db651 come with 6 3/4-inch adaptor rings for easy fit in VWs, Audis, BWMs and other European cars. This is a truly versatile high-performance coaxial loudspeaker with all the Polk features and technology that make it a great choice for any vehicle.

db651 Features:

Dynamic Balance® driver technology for pure, distortion free sound.

Polymer/mica composite cones are stiff yet lightweight for big sound and little distortion.

Klippel optimized components for consistent, distortion-free sound.

Marine Certified means the db651 is built tough to withstand the harshest environments on the water.

Low-mass 2-layer Kapton voice coil Kapton has a high melting temperature, ensuring reliability and high power handling.

Swivel mount tweeter allows precise aiming of sound.

Wheel-inspired style combines with rugged durability in the db grille

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 composite dome
Mid / Woofer
Quantity 1
Diameter 6 1/2″ (16.51cm)
Type Dynamic Balance driver with polymer/mica composite cone with rubber surround


Total Frequency Response 35Hz-22kHz
Nominal Impedance 4 ohms
Efficiency 92 dB
Power Handling
Continuous 60 watts
Peak 180 watts


Cut-Out Diameter 5″ (12.70cm)
Height 1 3/16″ (3.02cm)
Full-Range Mounting Depth
Top Mount 2″ (5.08cm)
Bottom Mount 2 3/8″ (6.03cm)


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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