Boss is ****. Cheap and very, very nasty. I have only ever bought one thing of theirs which were 6.5" splits, after a week they stopped operating (the wire to the coil failed) so i took it back under warranty got it replaced, then just after 12 months (how ironic) the glue around the cone piece and outside rubber surrond came unstuck and not long after that happened, one of the crossover's tweeter output failed. I knew at the time they were cheap and nasty but like most people i wanted a low cost setup. So for that i deserved what i got!