I own PL 6 mono amps. I'd suggest that you talk thru the 6 vs 7 option with Kevin. At an audition of the two options at Upscale, he capably demonstrated that they are voiced a bit differently from each other. Your preferred speaker may then impact your choice of PL amp, which might well be better than having the specific PL amp dictate the choice of speaker.
Good Luck,
Marty
Good Luck,
Marty