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

1" Oversized Voice Coil: Superior power handling and consistent performance

so they'll cut right through the wind

Designed to work with high-quality KICKER AFS fuses for fused power distribution

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