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

I'd say my old favorite was when I got the NAD 2020 integrated amplifier about 45 years ago. I wish I still had it but changed to an Adcom 5400 amp about ten years later. Current favorite piece is Watkins Generation 4 speakers (prototypes labeled "custom design" with Bill Watkins name underneath). Before those speakers, I had Watkins WE-2, a smaller version of the massive early 80's WE-1. I was also quite fond of my old Grace F-9E mm cartridge which was used with the NAD years ago.

I will never change or part with my speakers, but I do change components infrequently.

Now, the next thing I will never part with is my Vintage McIntosh mx110z Tube Tuner/Preamp.

If trouble presents itself, It will be overhauled by Audio Classics pronto.
Dead, I would buy another without ever considering an alternate.

Things you would replace without considering alternates?

You make me realize I have several things I won’t change unless they die. Keep in mind, I’m 72, so over many years you get to keepers.

As I said, I will never change or part with my speakers (custom enclosure/vintage drivers from 1958). I have a full set of spare drivers downstairs, and just checked yesterday, the vintage cloth surround re-cone kits are still available for the 15" woofers.

I also said I will never part with my Vintage McIntosh mx110z Tube Tuner/Preamp. I just wrote this AM, to Audio Classics asking them what they might charge to ’upgrade/overhaul’ them (just to know). If trouble presents itself, I’ll drive up there, 5 hours away, drop it off, visit my friend who lives near there. Dead, I would buy another without ever considering an alternate.

My TT, just added a 3rd tonearm to Vintage JVC Plinth CL-P2, I will never change that plinth. Spinner, TT81, never change it unless it dies, then direct replacements are available. 3 Arms, no desire to change, but if any arm dies, I would search, consider alternates.

SUT, new to me Vintage Fidelity Research FRT-4, if it died I would get another one just like it. It's 3 inputs match my 3 arms, and 4 optional loads give flexibility for future MC cartridges.

Reel to Reel, Teac X2000R, I have 2 active and 1 spare, their last ’Prosumer’ model, never consider another, I know all about their innards.

Office TT, vintage Vertical on top of BC. Only vertical will fit. Mitsubishi LT-5V is so cool looking, and a high quality linear tracking, I’d get another if it died. I’ve got some spare parts downstairs, but mice ate the electronics, so only physical replacement parts are good. They made similar taller units ’Interplay’ with vertical Tt and cassette and fm and aux input. If this died, just for fun I might go for one of them.

I frequently mention Chase RLC-1 Remote Line Controller for remote volume and remote balance. I will never live without two, 1 main, 1 office, and I have a 3rd on the shelf.

Oh yeah, my 8 Track Player. POC, but I designed the offices of Columbia House, and it was a gift.