Alpine SBS-1041BP Type-S 10" Single Bandpass Subwoofer Enclosure at Crutchfield
Brand new alpine subs sound extremely quiet. The amp is very small but was powering similar watts subs much louder at the same output level. I'm breaking them in but I feel
Alpine S-W12D4 12" Type S Car Audio Subwoofer with Rearfire Sealed Uni – absoluteusa
Alpine Type X SWX-10 10" Sub and Port Back Subwoofer Box Plans | CustomLowz