I have a pair of Boston Acoustic FS60 splits up front. According to their site, these splits are rated up to 150 WRMS/ch. Now, I have my heart set on the Audison SRx4, which produces 170 WRMS/ch @ 4 ohms. Will this be too beefy for these splits? Should I perhaps go a little lower, like 150 WRMS or down to 120-130 WRMS?