I would have to say it is a tie between my newly refurbished all black Revox PR99 and my custom made Grandinote Mach 36 speakers (from Italy). There is something quite soothing and magical watching those 101/2" gold reels spinning while generating great music through those giant speakers, each with 36 drivers and 25 tweeters. I love the rest of my system (500 level Naim amp, pre amp, CD, phono stage) but the R2R is sublime. Oh, I almost forgot about my Kuzma Stabi XL DC turntable with the 14" tonearm and Koetsu Rosewood Signature Platinum cartridge.
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.