This Speaker

Newegg.com has the Diesel Audio 12” 1000W Car Subwoofer for $49.99 with free shipping.

Product description from Newegg.com:

General Brand Diesel Audio Model NS-1212 Type Subwoofers Component Subwoofer Size 12″” Cone Material Aluminum Alloy Cone Woofer Surround Material High Quality Rubber Surround Voice Coil Dual Voice Coil Construction 4 Layer Voice Coil Magnet Construction 100 oz Magnet Frame Construction Chrome Plated High
Gauge Specification Peak Power 1000W RMS Power 500W Frequency Response 25 Hz - 800 Hz Sensitivity 90 dB (1W/1M) Impedance 4 Ohm Feature Feature Engineered to deliver high power with low distortion and an Astonishing low bass response

Push Button Terminal

High Energy 100 oz Magnet Structure w/Bumped Back Plate for Max. Excursion

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