Boy take your pick. I'm pretty sure those electronics would sound good on any speaker. I would just avoid any speaker that dips below 2 ohms.
Speakers to Match to CAT pre amp and CAT mono bloc
The musicality and dynamics of CAT amplification is legend. I would like to know, from those that have CAT amplifications, what speakers would you recommend for a room that is 25'L 17'W x 13'T. Music library is principally jazz (acoustical,vocals, small ensembles) blues, and world music.