BK Electronics XXLS400DF Review
Posted on by Thomas De Maesschalck
In this far smaller enclosure, the honest paper pulp-coned woofer is sealed in rather than differentially ported like the XTZ, and is far easier to set up as a result. It is a downfiring design in a box that would suit a 10-incher. It's certainly priced like a product of this size, with its rivals list having to be drawn from competing subs of up to £200 more in price!
Link: Techradar