Paradigm Studio 60 vs. PSB stratus silver i


I am about to upgrade my 11-year-old PSB 500 speakers to provide (hopefully) more refined treble, better imaging and tighter bass. I am looking for opinions on two the models above. Because of the limited number of audio shops in my area, it is difficult for me to find speakers to audition. My room size is 16' x 20' and fronts of the speakers can be 30" max from back wall. I listen to jazz music primarily. The rest of my gear has been upgraded within the last year:
NAD C370 integrated amp (120W, high current)
Marantz st6000 tuner
Sony CDP-CA70ES CD changer
Van den Hul D-102 III hybrid interconects
Kimber 4pr cables

One concern I have is whether my amp will have enough power to drive these speakers. Thanks for your help.
9hcp
Which ever spk. you decide to buy will sound a heck of alot different than your PSB 500's! These were a very warm/mellow sounding spk. If your associated equipment is neutral or a little on the lean side, you might be disappointed with the way things will sound at first w/your new spks. (Don't forget the break-in time as mentioned above.) You really need to audition in your room to see which works for you. If you listen to alot of jazz, I personally would look for a spk. w/ a soft dome tweeter. Your NAD should have no problem driving either of these spks.
Your amp is a powerhouse, and smooth to boot. So I don't think that either amount of power or type (sound) of power is an issue with either of these speakers. Pick the one that puts a smile on your face when you listen and forget about audiophile issues: follow your heart, as they used to say in the old days...
Thanks for the suggestions, everyone. Glad to hear the my new amp will be able to provide the required power. I agree that the PSB 500's are mellow. Sometimes too mellow, I think.