More background, after Magnets Bulbs and Batteries. I got interested in audio at about age 15 or so, having been given a record player at age 13 (with vinyl-clashing autochanger) and was not that satisfied with it. Not having much money, I walked into J G Windows music and hifi store in Newcastle on Tyne (UK) and asked if they had any Saturday jobs. Still there, and doing the same sort of stuff http://www.jgwindows.com/pages/Contact-Newcastle.html. It turned out yes they did have a place for a Saturday lad, so I got my very first paid job in 1972 (oddly enough the same year that NAD - New Acoustic Dimension started in business), My job was selling hifi gear, which I was not too shabby at. But the really big advantage was that I could buy anything in the shop at cost price - so a third off. Hifi gear, records, televisions, musical instruments. It was at that time I bought my Thorens TD150 (still have it, 42 years on) and SME 3009 pickup arm (still have it). Bought lots of records, from Classical to heavy metal and everything between. I built my own amp and speakers.
That rig went through my entire university life with me and did not miss a beat. But in my first year, I was in digs (ie living in someone elses house for money) and thought I'd better get a pair of headphones, and found a pair of Koss PRO4AA second hand in a local shop (now in Southampton). They were very good, with fluid filled ear pads - but they were crushingly heavy and it felt like you head was in a vice. Eventually I upgraded to a (second hand) pair of Koss ESP6 electrostatics. They were a real revelation in clarity, but boy oh boy were they heavy. The HV and step up transformers were in the earcups, and fluid filled ear pads again - you needed total dedication to wear them.
I went through several different loudspeaker/amp combinations, going active at one stage with the first of Linkwitz's designs, but using transmission line bass units - this in 1978-ish.
But my move to high-end came at an audio show in London (the Heathrow Penta show) in maybe 1985. I walked into the Meridian room - and Meridian at that time were importers of Mark Levinson. So they had their CD player into a dual mono ML with external power supply, into ML class A monoblocks and Quad ESL63's on stands. They were playing Brothers in Arms, something I knew very well. It sounded like a completely different piece of music! At the time I was using the first generation Philips CD player, the TD150 etc into a Quad 34 pre and 405 power amp and a pair of KEF speakers - but the Meridian room totally and utterly demolished it sonically. I just HAD to have something that came close.
So I've been though Krell, Audio Research, Magnaplanar, Martin Logan, Podium, Quad ESL57 over the years, and have now settled on homebrew power amps (8 channels) and active LX521's - by Linwitz. And there it is going to stay apart from inevitable tweaks for a good long time (knock on wood!).