The one thing I used to wish about my speakers is that they would move more air. In fact, I was thinking about building a pair of Earl Geddes's speakers with that in mind. After getting the Insight DAC, I'm rethinking my need to get different speakers.
My situation was just the opposite regarding speakers. I own three pairs of LS3/5A-type mini monitors, lastly using, of the three pairs, Spendor S3/5 as my primary speakers. I thought that they were great speakers, but after I received my Insight gear, it became apparent that the speakers couldn't keep up with the electronics, and not just in terms of bass response. For lack of a better term, the speakers seemed to be confused, particularly on passages where there was a lot of material.
After a while, I decided that I needed "better" speakers to appreciate the AVA gear. Like Frank stated about the Salk HT-3, "They let you hear everything that is happening ahead of them, from the talent of the performer, the mics, the record electronics, down to the whole playback system, for better or for worse (usually for the better, a lot better, with good stuff ahead of them). My HT3s are tools, my acoustic windows into the quality of our design ideas. We need to hear it all, and the HT3s let us know, right away, if our ideas are worthwhile."
Well, my Spendor S3/5 were pleasant sounding, but they weren't windows into the music, or if they were, they were tinted and well-shaded windows, and that's not what this is about, IMO, and I purchased a pair of Salk SongTower with ribbon tweeters. Even if I am not hearing everything, I am a lot closer, and I am hearing a whole lot more than I was hearing before, and I got some bass, too.