Alpine S2-DB8V-TRK Halo Series 8" ported dual subwoofer enclosure with two 8" S-Series subwoofers

Product info: 8" ported dual subwoofer enclosure adjustable rubber feet for uneven surfaces Pro-Link design allows width adjustment for secure fit loaded with two Alpine S2-W8D2 subwoofers carbon fiber/polypropylene cone with Santoprene rubber surround power handling: 600 watts RMS 2-ohm impedance frequency response: 34-200 Hz sensitivity: 84 dB dimensions: 51" W (max)/40" W (min) x 8.63" H1 x 5.34"H2 x 14" D warranty: 1 year Driver side loaded enclosure Passenger side loaded enclosure Front link bracket (installed on back of front cover) Rear link bracket Front cover w/ attached trim bars 2 Amp tray brackets 6 Stacking feet (installed on enclosures) 2 Extra foot spacers 2 Extra rubber feet 4mm Allen key 3mm Allen key Installation manual Warranty & registration information General Woofer Size (inches) 8 Speakers Per Box 2 Woofer Material Poly/carbon fiber Enclosure Type Ported Color Black Pieces in System 1 Width (inches) 51 Height (inches) 8-11/16 Depth (inches) 14 Connector Type Spring post Frequency Response 34-200 Hz Hz Power Handling (Watts RMS) 600 Power Handling (Watts Peak) --- Sensitivity 84 dB Impedance 4 ohms Parts Warranty 1 Year Labor Warranty 1 Year