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


Polk's best 12-inch Dual Voice Coil Component Subwoofer

Available Finishes:

Mobile Audio for Serious Listeners

Subwoofers for Serious Listeners

Polk Audio rocked the car stereo world in the spring of 2005 with the introduction of the SR6500 Signature Reference component/coaxial system hailed by Car Audio & Electronics magazine as "...the best performance, the best cosmetics the best engineered" component system. The same attention to detail and performance we brought to the SR6500 system we now offer in the all-new Signature Reference SR124 and SR104 Subwoofers. Both models are designed to provide competition-grade bass performance when installed in small sealed enclosures (.88 cubic ft net volume for the SR104 and 1.2 cubic ft net volume for the SR124).

SR Signature Features:

  • Massive die-cast aluminum basket to house the 16 pound motor structure.
  • Dual 4 Ohm Voice Coil (DVC) gives you maximum wiring and Impedance options (Single Voice Coil (SVC) model also available).
  • A 2.5 inch glass/epoxy voice coil former wound with four layers of heavy gauge high temperature Aluminum wire provides the highest power handling and reliability.
  • Voice coil is bathed in cooling air via an extensive network of vents in the pole piece and basket.
  • Specially designed curved vanes smooth the airflow to minimize air turbulence that could cause noise and chuffing
  • Dual progressive roll spiders precisely control the cone's long excursion for the ultimate in tight detailed and musical bass.
  • Polk's Klippel Distortion Analyzer, which uses laser technology to measure and optimize driver behavior under high output, helps maximize linearity, minimize distortion, flatten and extend frequency response.
  • ABS Cone employs catenary geometry for greater distortion damping stiffness.
  • NBR (Nitrile Butyl Rubber) Surround damps distortion inducing resonance as it stands up to harsh automotive environments.
  • Hex-key terminals (use a 2.5mm Allen key) for clean, professional hookups can accommodate up to 8 gauge speaker wire.

Driver Complement

Diameter12" (30.48cm) 
TypeDynamic Balance woofer with poly-composite cone and NBR (Nitrile Butyl Rubber) Surround 


Total Frequency Response20-200 Hz 
Nominal ImpedanceDual 4 ohms
Efficiency@ 2 ohms,  dB
Power Handling
Continuous700 watts
Peak1400 watts

Thiele / Small Parameters

Resonant Frequency30 Hz
Xmax Linear16.25 mm / 0.64 in 
Xmax Mechanical63.5 mm / 2.5 in  
BL19 series 
SD499 sq. cm / 77.35 sq. in 


Cut-Out Diameter11" (27.94cm) 
Driver Mounting Depth
Top Mount7 3/5" (19.30cm) 
Product Weight (each)26.50 pounds


Unit of Measureeach 


Speaker Warranty3 years 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.

SR124-DVC Media

SR124-DVC Literature

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Series Catalogs

SR124DVC Accessories