Alpine S2-DB8V-TRK Halo Series 8" ported dual subwoofer enclosure with two 8" S-Series subwoofers spare tire subwoofer 13-band parametric equalizer (Basic and

13-band parametric equalizer (Basic and Advanced options)

cutout diameter: 4

and SRC formats

Part of the EVO 4 SERIES and based on an FM 433 MHz communication platform

Split screen function (two apps opened at the same time)

Alpine S2-DB8V-TRK Halo Series 8" ported dual subwoofer enclosure with two 8" S-Series subwoofers spare tire subwoofer 13-band parametric equalizer (Basic andGreat looks and great sound When you have a great truck, you want more than a run of the mill subwoofer system you want great looks and great sound. Alpine's S2 DB8V TRK loaded sub enclosure offers the sound and style you've been looking for in a package that fits neatly under your seat while giving you the solid bass you want. Adjusts to your needs Alpine's central metal Pro Link bracket that lets you adjust the enclosure's total width from 40" to