Subs in Boxes

Alpine SBL-S12S4
Alpine PWE-S8 8-inch Powered Subwoofer
JL Audio Mustang 12TW3
FOCAL IBUS 2.0
Focal BOMBA BP20
ALPINE SPC-600G7
Alpine PWD-X5 All-in-one compact Subwoofer, Amplifier and DSP
Kenwood 1000FBOX
Stinger TXTRB10 - 10″ Subwoofer Underseat Subwoofer Enclosure
Stinger TXJWB12 12″ Subwoofer Enclosure for Jeep Wrangler
Alpine R2-SB12V-4 Next-Generation 12-inch R-Series Alpine Halo Preloaded Subwoofer Enclosure with ProLink™
Alpine R2-SB12V-2 Next-Generation 12-inch R-Series Alpine Halo Preloaded Subwoofer Enclosure
Alpine SBL-D12S4 Bassline Series 12″ Dual Subwoofer Enclosure
FOCAL PSB200 8" SUBWOOFER IN PASSIVE ENCLOSURE 
Focal ISUBTWIN Compact Subwoofers (Pair)
JL Audio SB-S-BRZFRS/10TW3 86/BRZ
Alpine S-SB12V
Alpine S-SB10V
Alpine R2-SB10V R-Series 10″ Halo Subwoofer with ProLink™
Alpine SBR-S8D4.2 R-Series 8” Compact Subwoofer in Tuned enclosure