Check out Mapleshade cables. They may make more difference than anything else. Pierre at Mapleshade told me that years ago and I wrote it off as pride of authorship... until I tried them and they've easily bested everything I've thrown at them since. They'll really open things up. Don't forget about the power cords. Ditto the above.
EAD Signature,New Krell 7.1 or tube preamp
I have Sim audio Titan,EAD Encore,Ariel 10Ts,center and surrounds. I looking for more clarity,and soundstage. should I go with another pre/pro or tube preamp like a bat or cat ultimate and run a passthrough and keep the Encore. I would appreciate your help on this. Thanks