11" Shallow Spare Tire Passive Dual Voice Coil Subwoofer (4Ω) The DPSTX12 Shallow Spare Tire Passive Subwoofer from Diamond Audio is a space-saving bass solution designed for drivers who want enhanced low-frequency performance without sacrificing trunk space. Engineered to fit directly into the factory spare tire well, this DMD Series subwoofer provides powerful, controlled bass while maintaining a clean, OEM-style appearance. Featuring an efficient 11-inch shallow-mount subwoofer with a dual 4-
