Class A Coda 15.5 Vitus SS-102 or Gryphon Mephisto

Stay tuned for the Coda S250 to be released in the Winter of 2015. Pure Class A at 250 watts per channel.

I'm not sure of your budget Goldman, but if you're mentioning the Mephisto stereo amp, well that's a $57k amp. At that level, you could also look at the awesome new Vitus SM-011 mono blocks. They're a definite step up from the SIA-025 and have a lot more power/control. The little Vitus amps seem to sound a bit warmer/more romantic than the bigger amps such as the SS-102. That said, the SS-102 sounds very natural, analogue-like and is the most unfatiguing amp i've ever heard. It is the only amp I've heard which tames the older YG speakers tendency to brightness and a 'metalic' sound. Even the little SIA-025 is a peach. It depends on your system needs and how deep your pocket is. One thing to keep in mind; Vitus sounds best with Vitus. If you go for SM-011 mono's or an SS-102, my next upgrade would be an SL-102 pre. Hope that helps!

Hi-Guys and Gals i received karan kas-600 and it put shame on lot of expensive amps This Karan has swept everything i heard in 20 years  and its getting better and better i have fitted mit oracle ma-x bal interconects and power cords and WHAT a difference but wait there is more fitted mit hd 60 speaker cables and it came all together i am over the moon Milan Karan builds best amps on the planet there are others but at 4 times the price forget it I am so blown away i will be getting signature version asi grand monos my ultimate dream if you have a chance go and hear karans and asi they will sweep you away as karan kas-600 has done to me