Trinity Audio H 18" Car Subwoofer 3500 Watts 4" BASV High Temp Voice Coil D2 Ohm. Trinity Audio H 18" Car Subwoofer 3500 Watts 4" BASV High Temp Voice Coil D1 Ohm. Trinity Audio H 15" Car Subwoofer 3500 Watts 4" BASV High Temp Voice Coil D2 Ohm.
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