The seller wasent using a crossover , he was using one of those EQ devices in his jukebox type CD player. A reviewer (i believer it was from TNT audio) went to hear the speakers and during a change in CDs the EQ graph suddenly came up on the LCD readout.It was set to the ROCK setting. All i am stating is that without some sort of series resistance to raise the QTS a lower QTS driver is not designed or really ment for a BR.It will burn your ears off with the mids and highs.Its either that or a notch filter or both. Again all i am stating is that for some sort of a near flat response a low QTS driver will require either a crossover(from a sub)or series resistance and probably a notch filter (for the rising response from the FR curve)or a properly tuned rear loaded horn. ron