ALPINE R Series 8" Subwoofer Box ( Ported ) - SBR-S8D4.2 Wireless Navigation Receiver with Alpine’s extensive sound tuning

with Alpine’s extensive sound tuning built-in

you’ll also find an input for a wired remote that lets you adjust your bass level easily from the driver’s seat

1 x HDMI input

P 25 FSE is the ideal compromise for ultra-compact sealed-box use (12 to 18L)

ALPINE R Series 8" Subwoofer Box ( Ported ) - SBR-S8D4.2 Wireless Navigation Receiver with Alpine’s extensive sound tuningAward winning SBR S8D4, named INCAR SUBWOOFER OF THE YEAR LOADED ENCLOSURE for 2017. The SBR S8D4 features Alpines Type R 8 subwoofer in a custom slot ported enclosure. Ideal for installation in small spaces, its compact size means it can fit virtually anywhere. The pre installed subwoofer employs many features typically found in larger models, such as Alpines H. A. M. R (High Amplitude Multi Roll) suspension. This unique design allows greater linear