I have a pair of 6.5s. I too thought that they were not lively enough in the treble. I was at the time, able to get a hold of David and he suggested more playing time and Analysis Plus cables. He was right. They now sound wonderful. I could not be happier. That's just my experience. It is up to you what you do next. Good luck.
Soliloquy 6.2 Very Poor Treble .....
After several calls to David Berman at Soliloquy, without a response. I will put it to the Audiogoner's . Will I need to change the tweeter or rebuild the crossover to "brighten up" the highs in this speaker....Or should I just trade them off and start over ????. I kind of like the speakers if I could get them to sound a little better. Maybe that is why they are no longer in the speaker business...I think that changing the tweeter would be the easiest but I will be open-minded.....Thanks