What's the best and/or favorite piece of equipment you've owned? And do you still own it?


My favorite piece(s)  are  (and I still own them) the Martin Logan Ethos lousdpeakers and Soudsmith Paua cartridge.  As far as speakers go, electrostats are my favorite and will replace them with another set of electrostats.  I'm currently eyeing MUR Audio SP1's.  These two pieces make my rig sound great.  
polkalover
Revox B77 and I still have since 1972. It was serviced every few years and still works flawlessly.
Best: Philips 22AR470

Favorite: Rotel RA-414 tie with Technics SL-Q2

I still use Technics SL-Q2 and, just in case, did buy an identical one a couple of weeks ago. Spare, NOS (!?) stylus arrived today for the first one.
Adcom GFA- 585 LE with my 93 Khorns in Germany...gone....I'm going to cry now.... 
Without a doubt it was my McIntosh Power Controller.  I couldn't believe what a difference it made.  Don't expect I will ever get rid of that thing, unless there is no room for it in the retirement home.