Don't forget too that the late Jason Bloom "Mr. Apogee", put allot of work into making your Apogees sound it's best. It was one of the many speakers that I feel were designed with little compromises. Don't forget to try some tubes. It is important that you hear the ribbons at their best. And yes by all means make sure you have enough power. I don't know what levels you play your music or the size of your room but you will be shocked by the different signatures each amp will display musically. I actually drove my Centaurs with a 35 watt and a 50 watt tube amp. I may have listened at peaks of 104 db but an average little under 100 db. The room was about 20 x 15 at that time. My listening habits were usually 50's, 60's jazz, classical, blues, light rock,(Dire Straits, etc.)and R&B. Actually anything. Mostly vinyl but cd's too. Oh, one other thing Audiophile selections too. You should be very happy to get them in the condition they are in. I don't have a room big enough for them right now but I am still using a Ribbon speaker. The Aurum Cantus Leisure 3 SE Signatures. They remind me allot of the Apogees but the bass is not as controlled as the Apogees. Good luck!