Alpine R2-SB10V Halo Series 10" linkable ported subwoofer enclosure dblink plus a few extras you

plus a few extras you might not find on other remotes

Coaxial Speaker System: 4-inch (100 mm) Woofer

Nominal Impedance: 0

you'll need power for all your speakers

Four 25mm hex-socket screws

Alpine R2-SB10V Halo Series 10" linkable ported subwoofer enclosure dblink plus a few extras youTwice the bass Alpine's Halo Series subwoofer enclosures make it simple to add bass (and more bass) to your system. You'll get great bass response from a single box, and when you're ready to expand your system you can add a second enclosure and the optional linking kit to create a two speaker system with double the impact. Laying it down The R2 SB10V comes loaded with Alpine's updated R2 W10D4 subwoofer wired for 2 ohm impedance, for solid bass