sifu-sifu, all the jedi masters, old bird, old timers, gurus etc etc...
let's say if a standard setup (component in front, subwoofer at the back with one 4 channel or a pair of 2 channel amp) is up. What's next in order to get the best out of the setup without adding any other pre-amps (equalizer/processor etc). metal ring? dampening? tuning?