I currently have the 2.5's, before the metal dome tweeter, and Vandy 3A Sig. I have to agree with the comments about the hi-fi sounding of the 2.5's but with proper room placement and careful component selection some of this can be eliminated. One other thing less commented on is the 2.5's presentation, I always compare it to looking down into the soundstage, kind of like a balcony seat in a theater where as the Vandy's give a seated in the audience presentation. One way to minimize this is to get the speaker up off the ground to where the tweeter is about middle ear, you won't eliminate the looking down into the soundstage but you'll lower your presentation, ie movie theater seating with a jazz ensemble, not usually conducive with WAF . One of the best amps I found for driving these is the McCormack 0.5. The Infinity's I haven't heard in more than 20 years so can't comment.