Alpine R2-DB8V-TRK Halo Series 8" ported dual subwoofer enclosure with two 8" R2-Series subwoofers

Product info: Featured in our article: Best loaded subwoofer boxes for 2026 8" ported dual subwoofer enclosure Pro-Link design allows width adjustment for secure fit loaded with two Alpine R2-W8D2 subwoofers Kevlar-reinforced pulp cone with Santoprene rubber surround power handling: 750 watts RMS frequency response: 32-200 Hz 2-ohm impedance sensitivity: 84 dB dimensions: 51" W (max)/40" W (min) x 8.63" H x 14" D warranty: 1 year Alpine R2-DB8V-TRK owner's manual 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 Pulp, Kevlar 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 32-200 Hz Power Handling (Watts RMS) 750 Power Handling (Watts Peak) --- Sensitivity 84 dB Impedance 4 ohms Parts Warranty 1 Year Labor Warranty 1 Year