Alpine HDS-990 High-Resolution Digital Media Audio Source Motorcycle Subwoofers *The L7T 8-inch Subwoofer works

*The L7T 8-inch Subwoofer works best with a sealed or ported enclosure and 350 watts of recommended power

this 1-Ohm kit pairs only with the 1-Ohm L7X10

DR970X PLUS Series DR970X Series (Prev Generation) Front: Diagonal 146°

and crossover for near-perfect sound from premium sources

Alpine HDS-990 High-Resolution Digital Media Audio Source Motorcycle Subwoofers *The L7T 8-inch Subwoofer worksProduct highlights: General Features: high resolution digital media player (does not play discs) no AM FM radio tuner black box source unit and dash mountable commander unit with wiring harnesses for connection between the two and to factory radios (if desired) built in amplifier: 25W x 4 RMS (50W x 4 max) source unit not designed to work in most dash openings Smartphone Features: built in Bluetooth for audio streaming (does not allow for hands free