SR6500 Compaxials

Components / Coaxials

6-1/2" - 6-3/4"
6" x 9"

SR5250 Compaxials

Components / Coaxials

5-1/4"
6-1/2" (Slim Mount)
5" x 7" - 6" x 8"

SR124

High performance Car Subwoofer

12" Diameter

$399.95 each

Customer Rating:

4.71 (from 7 users)

700 Watts of CONTINOUS power-handling capability! Seriously.
2.5-inch glass/epoxy Voice Coil Former, wound with four layers of heavy-gauge high-temperature aluminum wire, provides the highest level of reliable power-handling.
Vented Voice Coil, Pole Piece and Basket to more reliably cool high power output in competition situations.
Massive Die-Cast Aluminum Basket housing a 16-pound motor structure.
Specially designed curved vanes in the Subwoofer Basket conduct the massive airflow, preventing turbulence and nixing any noise or "chuffing."
Super tough NBR (Nitrile Butyl Rubber) Surround damps distortion-inducing resonance and stands up to harsh automotive environments.
Stiff ABS Cones employ catenary geometry, identical to the graph of a hyperbolic cosine, for... Wait a sec. Scan backwards. "Catenary geometry"? "Hyperbolic cosine"? Far as I can tell with my limited knowledge of anything (except how loud this @$�*&%! is), catenary geometry and the hyperbolic cosine describe a curve with a deep, deep low dip; like a mad smile. Suffice to say, it means that engineers got their grubby hands all over these cones and designed them to be so stiff that they damp any distortion that might want to "cosine" anywhere near your deep bass. Enough math! More volume!
Dynamic Balance Technology, using full-field laser imaging. Dynamic Balance enables Polk engineers are to discover previously hidden distortions on moving drivers. When they see it, they fix it. (You can watch cool little animated laser interferometry images of speakers doing bad things HERE.) You benefit because Dynamic Balance technology designs these performance-robbing resonances right out of Polk Audio drivers. The result is a distortion-free sound that's smooth and effortless, even at competition-level volume.
Cone construction is optimized with the Klippel Distortion Analyzer, which uses laser technology to better control driver behavior under high output. It maximizes linearity, minimizes distortion, and flattens and extends frequency response.
Dual Spiders tightly control the Cone's long excursion for the ultimate in tight, detailed, musical bass.
12" Single 4-Ohm Voice Coil configuration.
Professional Hex-Key Terminals (and a nifty 2.5mm Allen Key, included) can accommodate thick 8-gauge wire.
Optimized for performance in a small sealed enclosure (or a larger vented enclosure), and designed for easy installation.

SR Series Features

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.