zero the hero· Premium Member
RS180s are hardly midwoofers. Why not use something cleaner in the range you're going to use them, like the RS150's? The 180s have a nasty cone breakup that you can't deal with using an active XO. Also, 3 270s is way too low impedence, even for the A500. You also realize that 3 RS270s need about 9 cubic feet sealed, if you're going for a Qtc of .7? That's a big speaker!