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

My favourite that I own now, is the Daedalus Audio Da-RMa speakers. I travelled o the UK to the Rocky Mountain show in Denver in 2009 and bought them from Lou, as a retirement present to myself. I still worked for 5 more years but a great present, that I am keeping for ever.

The favourite item from the past is the Koetsu  Rosewood Signature cartridge I bought second hand, used for 3 years, retipped and sold for about what I paid for it. Later I used a Koetsu Onyx, but I didn't like it as much

Probably my Audire Diffet 3 preamps, which were very limited production.  I have only ever seen 5 for sale, two of which I bought and one the ad for the one I sold.  I know of two others.  Julius also made a dual mono preamp with tone controls, the  Andante, because he did not use the superstitious Japanese number 4.   (His fourth amp was the Forte.)    I still kick myself for not getting the one I saw advertised.  It has two circuit boards, one above the other, with separate controls for each channel.  Even rarer is a Diffet 5, of  which a half dozen were built to go with his tower amps, with open bottoms for air circulation.  At last report, his phono amp is still used by a Stereo Review tester in his number 1 system.  My Diffet 2 is really good, a bit better than my Bryston, but the 3 is as good as I will ever need, and I tried a lot of them.