I have heard a combo of 205/2 and some model of Pass amp at a local dealer. IIRC, it was a 100 watt/channel, current model. The room was pretty large. Unless the combo was pushed to a volume level that I found unnaturally loud, and somewhat painful, it was actually a very musical combo. So musical, in fact, that I actually preferred it to the Levinson-amped KEF The Blade statement loudspeakers in an adjacent room. Although I am not a metal-dome tweeter fan, the KEF Reference series is one of the most musical speakers I've heard with metal tweeters. Only occassionally did the highs get rough or edgy sounding. Most of the time, these speakers sound fantastic, IMO, smooth, detailed, natural and with a wonderful soundstage. Therefore, I would think you are smart to go with an amp that won't push the KEF tweeter over the edge of neutral. In SS land, Pass, Odyssey, Asthetix, and McIntosh come to mind as such amplifiers. There are probably others as well.