For starters, put properly rated Vibrapods under your player and pre/pro or receiver. These things are amazing for the money for cleaning up microvibrations and sound-smearing resonances.
What kind of speaker cable are you running to your center channel? And what kind of center channel spkr are you using and how is it sited/positioned?
Wide-bandwidth interconnects help, too. Without spending too much money, try a Kimber Timbre or Hero interconnect for your center channel signal chain (but do the vibration control first).
What kind of speaker cable are you running to your center channel? And what kind of center channel spkr are you using and how is it sited/positioned?
Wide-bandwidth interconnects help, too. Without spending too much money, try a Kimber Timbre or Hero interconnect for your center channel signal chain (but do the vibration control first).