The TC Sounds LMS Ultra 5400 18" DVC subwoofer uses a combination of sophisticated, patented technology and elegantly executed brute strength to achieve its deserved standing as the loudest, lowest, cleanest mass-produced subwoofer speaker in the world.
Enclosure : Ported Front-Firing / 10" Poly Cone with Foam Surround / Freq. Response : 35Hz-150Hz / Amp. Power : 115 Watts RMS / Finish : Black Includes free 1-year subscription to the Merriam-Webster Collegiate Web site
This is a nice quality JVC SP-MXC7TN Labyrinth Subwoofer System. It is a nice pair of subwoofers.
JVC CSG1200 SUBWOOFER 12INCH SINGLE VOICE COIL 1200WATTSDRVN Subwoofers are agressively designed and engineered to add bold looks and powerful sound to your vehicle. Using Hybrid cone and surround materials, DRVN speakers reproduce music with distinctive response, clarity, and efficiency that is second to none. High efficiency design means you don't need a lot of power to hear your music...
MADE FROM A UV-RESISTANT POLYPROPYLENE WOOFER CONE STAINLESS STEEL HARDWARE GOLD-PLATED SPEAKER TERMINALS & ABS BASKET & GRILL CONFORMS TO ASTM B117 STANDARD FOR SALT & WATER MOISTURE FLUSH MOUNT WITH INTEGRAL GRILL MAGNETICALLY SHIELDED TO PREVENT DISRUPTION OF MARINE INSTRUMENTATION FREQ RESP: 40 HZ?3000 HZ SENSITIVITY 90 +/-3 DB