Your most indispensable "tweak"?


Trying to narrow my possibilities down... 
redwoodaudio
I like  sandthemall  basic suggestion. Dedicated 10 gauge wire (shielded) and hospital grade outlets. 
redwoodaudio 
Your most indispensable "tweak"?

My 6mtly visit to my ENT Professor to vacuum the old wax out of the ears, after it you swear you come out hearing like a bat.
Scroll down and watch video, and you'll see what I mean.
https://www.insider.com/video-tiny-vacuum-cleans-out-earwax-2017-11

Cheers George