I'm designing some smallish cabinets that I plan to have built to hold a 15" LF and a compression HF driver and some small horn lens.

Anyway, since the speakers will serve as the front channels for my HT, they need to fit behind the TV in a moderate-sized room. The approximate demensions of the new boxes will be 18" x 26" x 15"

With such a small box, is there any advantage to using a sealed box?

Thanks...