Subs in Boxes

Alpine SBL-S12S4 Bassline 12″ Single Subwoofer Enclosure
Alpine PWE-S8 8-inch Powered Subwoofer
JL Audio SB-F-MUSCPE/12TW3 Mustang Enclosure
Kenwood 1000FBOX - 25cm (10") Shallow Subwoofer in a tuned enclosure.
Focal BOMBA BP20 ACTIVE SUB ENCLOSURE
ALPINE SPC-600G7 Volkswagen Subwoofer System
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 - 12″ Halo Subwoofer with ProLink™
Alpine R2-SB10V Next-Generation 10-inch R-Series Alpine Halo Preloaded Subwoofer Enclosure with ProLink™
JL Audio CP106LG-W3v3 Single 6W3v3 MicroSub, Ported, 4 Ω
JL Audio CS110TG-TW3 Single 10TW3 Truck PowerWedge, Sealed, 2 Ω
JL Audio CP208LG-W3v3 Dual 8W3v3 MicroSub, Ported Enclosure, 2 Ω
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
Alpine SBW-D12S4 Bassline 12″ Dual Subwoofer Enclosure
MTX Audio TNE212D Terminator Dual 12" Sealed Subwoofer Enclosure
JL Audio SB-VW-GTI/10TW3 Stealthbox® Volkswagen GTI
Alpine R2-DB8V-TRK Alpine Halo R-Series Preloaded Truck Subwoofer Enclosure with ProLink™
JL Audio CP212W0-2 Dual 12W0v3 Ported, 2 Ω 600 Watts RMS
MTX Audio RT10X3DS - Triple 10" RoadThunder 600W Subwoofers in a tuned Enclosure
Alpine RS-SB12 R-Series 12″ Shallow Profile Enclosure 2 Ohm Subwoofer
Alpine RS-SB10 R-Series 10″ Shallow Profile Enclosure 2 Ohm Subwoofer
Alpine SS-SB10 S-Series Shallow Enclosure with 10-inch Subwoofer
Alpine SS-SB12 S-Series Shallow Enclosure with 12-inch Subwoofer