Jm Labs Electra 936 help needed.


I purchased these recently and can't get them to sound right in my room. My room has a concrete floor with Pergo on top. Amp is an McCormack dna1 revision A with Acoustic Zen Satori speaker cable. Treble sounds nothing like the Electra 920.1 I owned a long time ago in a carpeted room. Sounds too bright; room is approximately 600 sq. ft., not sure if I can fix with speaker cables, I am looking for suggestions from people who have had this line in the past.
bigwavedave
Updated: I replaced the speaker cables with some inexpensive ones I had lying around. Must say I thought the sound would get even worse, but it surprisingly improved. If someone has a good cable recommendation I would like to hear it.
I would like to carpet, but not an option except maybe a using a rug.
Have been thinking about a tube amp, but not sure where to start.
Thanks for the help
Well what do you know, the used speakers I just purchased took a week to break-in. I swapped the Satori cables back in today, and was surprised it changed, now playing these speakers finally sound smooth. Would have never guessed it would take so long to warm them up. Looking for a nice large rug next and maybe some Golden Reference speaker cables to see if they better the Satori's. Many thanks to all who offered their advice.