Personal amp evolution

Kenwood VR-509 Receiver (High School)
Pioneer ELITE EX-500 Receiver (Early College)
Adcom GFA-545 II (Late college to now {I'm 22})

Currently looking to upgrade to Adcom GFA-565 Monoblocs...

I recently acquired Spectron's Musician III amp. It is absolutely magical. If you have very good speakers, you will think that you have added the best subwoofer available. The amp gives the feeling of power like nothing I've experienced. But even further, the highs are incredible, which I didn't expect. My experience in hifi (which goes back to 1958) tells me this is the best amp available at this time.

Dfeferman, what speakers and gear have you owned...type of music? Does a violin sound distinct from a viola? etc..

Let's see...

... Bogen 35 watt mono tube amp (hand-me down from dad)
... Bogen 17.5 wpc tube receiver (still have it)
... Dynaco Stereo 70 (built it)
... Mac 6100 (repaired it)
... Mac 2120s (pair; bridged, purchased used)
... Krell KSA 80 to KMA 160s (fell off the deep end)
... ARC VT 200 (love it; still have it)

Also have a Cary CAD 300sei, which I use for headphone listening and to drive Vandersteen 1Cs (highly underrated for this application in my view)

It probably won't end there.

Pioneer Receiver
Harmon Kardon mono's
Adcom GFA 5500
Conrad Johnson SA 400
Mark Levinson 27
Mark Levinson 27.5
BAT VK200
Jolida JD1000 Integrated
Plinius SA-100 MKIII
Mark Levinson 29
BAT VK200