Alpine R2-SB10V Marine Enclosed Systems Subwoofer Since it works well in

Since it works well in sealed or ported enclosures you'll enjoy your music the way you like to hear it

so you'll need an active crossover (not included) to dial in the details of your dream system

or as a 2-channel amplifier producing a potent 250W x 2 into 4 ohms

Film (PEI) - Tweeter

Alpine R2-SB10V Marine Enclosed Systems Subwoofer Since it works well inAbout the Alpine R2 SB10V 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 SB10V comes loaded with Alpine's updated R2 W10D4 subwoofer wired for 2 ohm