11" Spare Tire Active Subwoofer Enclosure The DAST12 Spare Tire Active Subwoofer Enclosure from Diamond Audio is the perfect solution for adding powerful bass without sacrificing valuable trunk space. Designed to mount directly in the spare tire well, this innovative DMD Series subwoofer delivers clean, controlled low-frequency performance while keeping your cargo area completely usable. Engineered for both convenience and performance, the DAST12 features an integrated amplifier and an efficient
