It seems that building the enclosure to spec for the standard pro 4 Pi w/ eminence HF makes a lot of sense...can always "upgrade" later to 2226J's...gotta biamp soon! Wayne, the xover designations with the r1/r2 values...which dB is best for 2035/2226 woof and PSD2002 HF? Looks like a cakewalk...what's the catch? Thanks a bunch. Sam