• 9 years ago
More on Amazon.com : http://www.amazon.com/gp/product/B002Z3N0LQ?tag=purrfectcatdi-20

Marathon Rms-18Sw High Power Active 18-Inch Subwoofer System

Compact 18-inch Powerful Active Subwoofer System Amplifier Power 800 Watt
OFF80Hz125Hz High Pass Filter 80 - 200Hz Low Pass Filter
Precision Woofer Technology
Efficient and tight bass response
Built-in power protection circuit Balanced Unbalanced signal input

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