- Thread Starter
That *****! I only bought them because JL site says they can be used in sealed or ported enclosures. I used them in a ported enclosure prior to this in a smaller box but it was in a different vehicle.Box size is very important in subwoofer performance. Not only that, the box port area may be too big and cause your subs to go beyond their mechanical limit. Those subs were originally designed for sealed enclosures, so I suggest plugging the port and feel them out.