I had a similar experience with my Martin Logan 20i - they sounded just "okay" and no "punch". So, I've decided to sell them - and moved them into a small room and temporarily connected to a vintage Pioneer SA-9800 (100 WPC). It was like I got an upgrade to a much better pair of speakers, and I actually still have them to this day.
In summary - I would say a more powerful amp and some full-er range speakers should solve all the issues - and we only live once.


