Your oldest gear?

My midrange compression driver is around 85 years old.  As for what I’ve owned the longest, it is probably my Basis Debut turntable.

My Lava Lamp.

But at my vacation home I have my original 5 channel surround system intact and running well.  It consists of the best Denon AVR from 1990 combined with a Yamaha 5 channel CD spinner, Bowers and Wilkens Nautilus 802's, 803's, HTM-1 and Miller and Kreisel MX500 sub.  I believe the Nautilus series was the smoothest 800 series speakers they ever made.  Newer and newer tweeters just seem harsh to me.  And that Mx-500 push pull sub is amazing.  This system still fails to disappoint with movies, and sounds quite nice in direct mode with a simple Auralic Altair G2.1 streamer / Dac for music.  I never use the vintage Yamaha 5 disc CD spinner, but some do.

In my main home it is all modern 2 channel stuff with REL subs.

fun topic @zavato ! I am so focused on the new 2  channel I take this 35 year old vaca stuff for granted.  I had another pair of the 802N's I sold for 5k, only to spend 10x more for my current Vivid Giya's!  Now don't ask us about TV's!

Too much stuff from the 60’s, 70’s and 80’s to list - tube and transistor. Here’s my collection of vintage Altec speakers: Bolero’s, Santana 1’s, Segovia’s and Stonehenge 1’s. Plus JBL 4312’s and L166's.