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12″ C3 Series Subwoofer — Dual 4 ohm, 1500 W RMS
  • 12″ C3 Series Subwoofer — Dual 4 ohm, 1500 W RMS
  • 12″ C3 Series Subwoofer — Dual 4 ohm, 1500 W RMS
  • 12″ C3 Series Subwoofer — Dual 4 ohm, 1500 W RMS
  • 12″ C3 Series Subwoofer — Dual 4 ohm, 1500 W RMS
12″ C3 Series Subwoofer — Dual 4 ohm, 1500 W RMS

12″ C3 Series Subwoofer — Dual 4 ohm, 1500 W RMS

$600.00

The Concrete Audio C312LD4-USA is a high-output 12″ C3 Series subwoofer engineered for deep, authoritative bass and rugged reliability in custom audio systems. Featuring a dual 4 ohm voice coil configuration and 1500 W RMS power handling (3000 W maximum), this driver delivers powerful low-frequency output ideal for both competition builds and high-performance daily drivers. 

Built with a gloss grey die-cast aluminum basket, high-roll foam surround, and double-stitched triple joint ring for reinforced voice coil support, the C312LD4-USA combines a 3″ high-temperature USA voice coil with a premium 3-100 oz magnet to ensure controlled excursion and dependable performance under load. Recommended enclosure and port specs help optimize bass response for a range of builds. 

Key Specs:

  • Driver Size: 12″ subwoofer

  • Power Handling: 1500 W RMS / 3000 W max

  • Impedance: Dual 4 ohm

  • Basket: Gloss grey die-cast aluminum

  • Voice Coil: 3″ high-temperature USA coil 

  • Magnet: 3-100 oz premium grade 

  • Mounting Depth: 8.25″ 

  • Cut-Out: 11 1/8″ 

Optimized for sealed or ported enclosures, the C312LD4-USA brings impactful, controlled bass reproduction to any custom audio project — from daily setups to competition systems.

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