Alpine R2-SB12V Powersport Speakers Speakers include adapter plates

Speakers include adapter plates

The camera covers are fastened with a hex screw to prevent cable unplugging and secure the camera angle within the mount

Real time output and power supply thermal sensing

function improperly

Alpine R2-SB12V Powersport Speakers Speakers include adapter platesAbout the Alpine R2 SB12V Twice 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 SB12V comes loaded with Alpine's updated R2 W12D4 subwoofer wired for 2 ohm