boston pro60 and eclipse xa4000?

Right now I have a set of Infinity Kappa Perfect 6.1's running off of the front channels of an Eclipse XA4000 with an Eclipse CD7000 head unit. I am looking at the Boston Pro60's, but I noticed that they are rated at 125 watts RMS power handling, but have a 3 ohm impedance. The XA4000 is rated at 125 watts RMS x 4 at 4 ohms and 175 watts RMS x 4 at 2 ohms. Would the power output at 3 ohms be 150 watts RMS? Would the Pro60's be able to handle this? I am looking for more volume from my system. I am extremely satisfied with the clarity, but would like it to be able to go louder. Is there any way to safely increase the volume with my current setup? I am also very happy with how smooth the silk tweeters are in the Kappa Perfects. Would the Pro60's be overly harsh because of the alloy tweeters? Out of these Component sets, which would perform the best(volume and clarity) for a lot of electronic music and hip-hop when running off of the XA4000? Infinity Kappa Perfect 6.1 (current) Boston Pro60 Kicker SS65.2 Polk MMC6500 Suggestions? Thanks for any help in advance!

Anyone have any advice?

Just realized the tweeters on the Perfect 6.1's are aluminum, so no worries about harshness. Anyone have any advice for me?