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

Lots of interesting vintage equipment!  My favs are more modern but I remember as a kid my dad bought me a fisher component system for xmas that had a dual tape deck and turntable that kicked off my descent into the rabbit hole of high end audio.  I spent hours making mix tapes and playing 45's - it was for simple enjoyment of the music.  Was it the best ?NO. Was it my favorite? NO, but it was a lot of fun and nostalgic.

Keep the responses flowing!  Good Stuff. Plus, I learn from what people use!