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

Sansui AU-717 Integrated Anplifier.  Still use it in my utility room, powerful and smooth sounding.  A little bright, but you can turn down the treble dial....remember those!

Also, still have my NAD 3080 Integrated Amplifier from 1980!  Never been recapped, yet it can still drive my old pair of Infinity RS-1.5’s into oblivion, with their 12” Dual Watkins Woofers.  Who needs subs?

Ok then Sansui AU 7700....

Any qualities he have it in some relatively high degree....

Versatile and more powerful than his official watts  measure and beautiful....

So good that i cannot part with it..... Way more costly to beat it....

I'm in a monogamous relationship with my Shindo Giscours preamp.
Til death do us part.

My favorite is my current two way system. A Klipsch K-402 horn with an 1132 driver on top of a self built bass bin derived from the Klipsch MCM 1900 MWM bass bin but built with a 108" throat. A single fold horn and it goes down to 27hz before it starts dropping off. Amazing headroom, presence and fidelity. It’s fun to watch the expressions on the faces of those who stop in to hear them for the first time.  The other important part is the Xilica XP3060 and it is key to making the horns sound right which it does so well.

Magnepan 1.7i's.  Fantastic speakers, bargain price.