More on Amazon.com : http://www.amazon.com/gp/product/B00FPUIYL2?tag=purrfectcatdi-20
REL - R-528 - 500 Watt Subwoofer - Gloss Piano Black
Type Passive Radiator front-firing active woofer down-firing passive radiator Active Drive Unit
Input Connectors Hi Level Neutrik Speakon Lo Level single phono LFE phono Gain Control Range 8
Fully Electronic with SET-SAFE Yes DC Fault Yes
