Everyone Loves: Polk Audio db Series Car Subwoofers

Polk Audio's db Series car audio subwoofers have been a big hit since they were added to our product line-up and it's no surprise! The db series subs are the perfect balance of cost and quality and feature single and dual voice coil version in 8", 10" and 12" sizes. 

 Polk Audio db Series Car Subwoofers

Model Size Voice Coils RMS
db840 8" 4-Ohm 180W
db840 DVC 8" Dual 4-Ohm 180W
db1040 10" 4-Ohm 270W
db1040 DVC 10" Dual 4-Ohm 270W
db1240 12" 4-Ohm 360W
db1240 DVC 12" Dual 4-Ohm 360w

  • Single and Dual Voice Coil subwoofers are optimized for high performance in virtually any enclosure type: sealed, vented and band pass.
  • Wrap-around Rubber Gasket seals the sub in your enclosure for airtight performance.
  • State-of-the-art laser-based Klippel measurement technology perfectly centers the subwoofer's voice coil in the magnetic field, improving X-max and BL linearity, and the sub's micro and macro dynamics, for deep, precise, bass!
  • Black Matt-finish Composite Cones are unbelievably stiff for real gut-pounding bass.
  • Injection molded ABS dust cap also stiffens the cone to suppress unwanted resonance for incredible low distortion, high impact bass response.
  • Big beefy magnet structure and motor assembly for high output bass with tight control.
  • Durable Butyl Rubber Surround for consistent, reliable performance.
  • Four-layer vented voice coil runs cool while your music stays hot.
  • Vented pole piece for higher efficiency and ultra-high power handling.
  • Fast-On wire terminals for quick, secure hookups.


Polk Audio SR Series SR6500, SR5250 Car Speakers

Polk Audio SR Series Ultra High-End Hybrid Component/Coaxial Car Speaker Systems

SR6500 &  SR5250 are the ultimate in performance and flexibility available from Polk Audio. These hybrid "Compaxial" systems feature a modular desing which allows you to use each speaker in a component or coaxial configuration.


In addition to their modular "compaxial" design; the SR6500 and SR5250 also feature a modular mounting plate system which allows for installation in factory locations that require a different speaker diameter.



  • SR5250 5-1/4": 6-1/2" (Slim Mount), 5" x 7", 6" x 8"  
  • SR6500: 6-1/2", 6-3/4", 6" x 9"


Premium Sound & Refined Details

The Signature Reference series is the best automotive speakers Polk has ever produced. Your vehicle and music deserve top-notch, audiophile sound! We spared no expense bringing you the finest design and materials to this ultra-premium line of autosound speakers and subwoofers. Every component in the system- from the cast aluminum crossover enclosure, to the tweeters and woofers were designed and constructed with meticulous attention to detail. SR Series compaxial systems and subwoofers offer the finest looks and sound for your high end autosound application!

Ring Radiator Tweeters

The same exotic, sweet, airy sounding Ring radiator tweeters from our LSi and RTS line is now available for your car. Included are straight and 15° angle flush mount. These tweeters extract every ounce of detail from your music to reveal all the nuances you might have never even known existed.

Advanced Drivers

Award-winning Polk Audio technology places the SR Signature Reference Series at the apex of high-performance car audio. The drivers use aerated polypropylene cones for maximum stiffness and minimum cone resonance, ensuring a tight, clean, articulate response. Nitrile butyl rubber surrounds, laser-optimized, vented 2-layer Kapton voice coils and formers, and case aluminum baskets with extra heat dissipating features, all contribute to the SR Series' professional sound quality and outstanding reliability.

The mid/bass driver cone is Aerated Polypropylene in which air is injected into Polypropylene to produce a honeycomb structure that serves to stiffen and damp the cone without adding mass. This is the same cone technology employed in Polk's critically acclaimed LSi Series audiophile-grade home speaker line.

1-1/2" Polyimide Voice Coil Former provide high thermal stability (rated to 220°C) high power handling, low mass and superior bass output.

Neodymium Magnet Structure

Finite Element Analysis (FEA) design makes the powerful neodymium magnet more linear for lower distortion and higher definition. Small Neo magnet makes the SR5250 easier to fit into more locations and vehicles.