I just celebrated (?) #58 and find myself really enjoying picking out the bass tracks on recordings. Love Jim Messina'work with Buffalo Springfield and Jim Fielders with BS&T. Ditto for Wyman on the Stone's SACD "Hot Rocks" I had cranked above 100dB last night. OTOH, I find myself asking everyone to repeat everything if there's even a bit of AC or fan or lift truck noise at work.