I guess I've had a few over the years, but if I found one I liked I generally would stick with it for quite a while- usually it'd be a move that would have me change out something. For example I used to run 1st gen. Magnepan MGIII's, and had an external custom crossover with a Classe DR-3 for the top end and a couple of Eagle 2A's for the bottom end- it was magnificent. Not sure I've ever beaten it in some respects. A move dictated that I sell the Maggies, and later went through several dynamics. Went back to planars with the Eminent Technology LFT VIIIa's (now upgraded to the 'b' standard with the new tweeters). Wonderful speaker, though not a pure dipole. Need lots of power, and drove them for quite a while with a Classe DR-9 (DR-6 pre). The DR-9 was rated at only 100 w/ch, but the reality was something quite a bit more than this figure. It was a great combo, but a spousal requirement that I be rid of audio racks in exchange for a cabinet had me out of the Classe (too deep for the cabinet) and so I tried a Musical fidelity A308 integrated. A nice amp, but the ET's suffered on the bottom end compared to the Classe. Now running the ET's with a pair of Stratos Mono's (red board but not extreme). Not sure what extreme or GC would do, because they're already awesome and the ET's really come alive driven with these amps. If anyone would try to tell you that watts is watts, well, this would be a good case in point for proving them otherwise- the difference is quite dramatic. The bottom end of the ET's is transformed, more than likely even better than with the DR-9 (though I'm in a different listening environment now so it's hard to say for certain). And of course it's not just in the bottom end where the Stratos shine- imaging, transparency, naturalness, tons of headroom etc.
BTW, I also run a pair of Loreleis as well, changing them out time to time with the ET's- they're both excellent at their price points, and both quite different in character, but both equally enjoyable for what they do well. I could live with either as my only speakers, but am glad to have the option to change them out now and again. I will say though that the Loreleis have it all over the ET's in the bass department.
Hey Loki1957, see you have a Paso 750- neat bike, if a bit flawed (well, according to the reviews anyway). I finally sold my Moto Guzzi V11 Sport to a friend of mine- sure do miss it, but I'm raising a little girl right now. Think I'll wait for a while before I get another bike. BTW, my friend who bought the V11 also has a 907 i.e. -very nice machine...
Cheers,
Ron