PowerBass PS-WB101 - 10" Single Loaded Ported EnclosureBrand New PowerBass PS WB101 10" Single Loaded Ported Enclosure Key Features: Heavy Duty Single 10" Bass Reflex Box Design Computer Optimized Acoustic Chamber Bass Reflex Aero Slot Port System 2 Layer DDC Coated Black Ribbed Paper Cone 2" BASV High Temperature Voice Coil Double Pressed Treated Foam Surround 2 Tone Aircraft Grade Vinyl Finish Single 4 ohm Input 250 Watts RMS 500 Watts Max Specifications Nominal Impedance: Single 4 ohm Input Bottom