We were an Infinity dealer, everything except IRS
the Big CJ Premier 1 had the needed gruntbut sounded even better with an Acoustat amp driving the low end
as Melbguy says
imo more problematic is integrating the bass towers into the room and not ending up with a seriously screwed up sense of depth
i always took the Opus 3 depth of image LP with me when setting up..
oh ya, I still do !!!!
have fun
great speakers