I think people are missing the fact that he already owns a pair of $3K floorstanding speakers that are rated 90db efficient and have ribbonfolded tweeters and they are not playing loud enough for him.
Stepping into a less efficient speaker is not the answer. Sounds like he wants high SPL, low distortion speakers with high sensitivity, hence the JTR recommendation. Obviously there are others like Klipsch, etc, but recommending a less sensitive speaker is probably not a good idea.
I suppose he could throw more hardware at the solution (bigger, better amp) and potentially some room acoustics, but the easiest answer is get more efficient speakers.