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    2 Soundqubed HDC3.0,15's box build ideas and opinions

    Hey guys a few days ago I decided to throw out my sub's, amp, and box time for some good stuff. The build is going in a 1994 Mercury Cougar. The sub's and port will be firing towards my back seat, and the baffle will be sealed off from the trunk. I got a very noticeable sound increase doing it...