Ideally it would be best for recommendations to know if your power is supplied by coal, hydro, wind, or solar. The "greener" the better. Also, do you have any isolation devices under your equipment? Some amps respond differently to granite than they do marble or wood. What about air purifiers? HEPA is best because they remove the smallest particles that could affect the way the amps dissipate heat. A room full or non-treated air is chock full of things that make heat sinks work harder.
If you (generally) think any of that seems ridiculous, just imagine how you sound asking about the "sound characteristics" of an amp or interconnects or the other commonly heald but wrong beliefs.