Klipsch La Scalas.
That was quite an adventure. I picked them up from a house near Huntingdon. The owner was probably in his 70s, an excellent man who I liked immediately. He sat me down overlooking his garden and told me fascinating stories about the war. Then he took me upstairs to his listening room and played all sorts of lovely old classical recordings that sounded fabulous on the La Scalas. I was a bit worried he was making the wrong choice selling them, but he'd decided to go back to ESL57s, which made a lot of sense considering his tastes, and his proximity to Quad.
It was a hot day and a lot of sweat was involved getting them down the stairs and into the boot of my Honda Jazz. Incredibly they just fit, but with the boot open. So then I had to drive down the M11 with an enormous horn speaker hanging out of the back of the boot. I'm never doing that again.
The adventure lasted a month, but they were humoungous, and I couldn't get the positioning right, so I sold them to Tony. Of course, right after the deal was struck, I moved them to the other side of the room and the sound snapped together.
They were pretty special, in spite of the weird bass (i.e. lack of in relation to size). I've not really had another speaker that breathed in the same way. The word 'microdynamics' seems to get a bad press these days, but listening to the La Scalas it makes perfect sense; the air is alive with tiny pulses everywhere.
When I sold them to Tony I drove these speakers up to Lancashire in a van, so this would also be my entry for 'most miles driven for an item of audio equipment'.