My ears were formed in the early 80's, so here's how I keep them happy.
The shop has:
South room
Adcom GFA 555II bridged power amps (2 @ 200 watts per channel into 8 ohms, 400 watts bridged)
Adcom 6 speaker switch
Adcom GTP 500 tuner/preamp
BSR 14xr equalizer
Pioneer PD-M40 6 disc changer...