I auditioned the 300i with Dynaudio's and didn't like at all. I thought the sound was bright and thin. At the same dealer's I listened with the B&W Nautilus 805. Excellent combo. Really amazing. I don't like the look of the 805s so I eventually bought Sonus Faber Concerto Grand Pianos, which are floor standing. Before I got the Sonus Fabers, I had the 300i at home, hooked up to B&W DM 602s. Low priced, but they sounded nice for what they are. I also had the 300i connected, for a short time, to an old pair of B&W Matrix 802s. Fairly large floor standing. Sounded good. So, based on my experience, try the B&W Nautilus 805. Sonus Faber makes a bookshelf called the Concerto. If you try those, let me know what you think. There you have it, my experience with the 300i and several speakers. Good luck.