Amplifiers:A Keeper for Life. Do you know of one ?

I think the answer is system dependent to a degree especially the speakers that are being used. I love my Magico S5 speakers and have owned many amps the last few years:
- CJ Premier 350
- Hegel H30
- VAC 300.1a and 450S
- Constellation Centaur
- Air Tight ATM-2
- Marantz MA9S1 monos and MA9S2 monos
The S5s sound their best through the Marantz monos which I tried on a fluke not thinking anything could rival the Constellation which beat all comers with the Magicos.

All great amps but the least expensive won the day - go figure.

Life is too long to settle on one....that being said....one needs a great tube amp, Class A SS and massive SS amp. Pick your favorite manufacturer....there are many good one's to choose from.

I remain a VAC fan. I recently heard what my 450IQs can REALLY do and they were just jaw-dropping. It was great to hear them doing what they do best, and I wouldn't trade them for anything. Obviously this is very subjective. :-)

My VTL 300s. Followed by my Threshold S/300.

WYETECH labs 211 ok if you like non existent service ,plus build quality poor poor cheap $70 output transformers