Filter Frequency Range: 50 - 200 Hz. Optional Remote Subwoofer Level Control: RBC-1. You will be issued a Return Authorization Number. In order to maintain an inventory of 100%, Brand New, A-Stock, untouched products, all sales are final. We ask that you please be sure you are ordering the correct product.The item "JL AUDIO ACP208LG-W3V3 8 LOADED SUBWOOFERS SPEAKERS & ENCLOSURE BOX & AMPLIFIER" is in sale since Friday, August 10, 2012. This item is in the category "Consumer Electronics\Vehicle Electronics & GPS\Car Audio\Car Subwoofers". The seller is "woofersetc_outlet" and is located in Los Angeles, California. This item can be shipped worldwide.