DS18 JT-S84LD Loaded Under-Seat Subwoofer Enclosure for Jeep Gladiator (2020–Up) DS18’s JT-S84LD is the ultimate bass upgrade for Jeep Gladiator owners who like it loud and clean. Loaded with four 8” ZR8.2D subwoofers, wrapped in black leather, and lit up with digital LED lighting, this setup turns your Jeep’s back seat into a bass chamber. All the Boom, None of the BulkDesigned to fit under the rear seat of 2020+ Jeep Gladiator models with zero seat lift required, this sealed enclosure pumps ou