Got to audition some proac D18s today. They were driven by an ARC DSi200 integrated amp and ARC CD player. I brought my own music. I'm not looking to change my system, I just stopped in to browse. The D18 was spectacular. Wonderful sound. Nice attacking highs with plenty of transparency to the sound. Yet they never sounded the least bit bright. Highly detailed and musical. Good bass for their size, but missing the bottom octave. These are excellent speakers. I also auditioned some Magnepan 1.7 planar speakers which are very highly regarded and I'd pick the D18s over the magnepans hands down, no easy trick.