How would you rate these 2 Channel amps

Jeff Roland, Classe', Threshold :-))

Krell and Mark Levinson by far.
E

I agree on the Levinsons (golden era). Today's McIntosh amps are pretty darn nice. I was fairly blown away by a pair of MC501's last weekend at the dealer.

I fear there are real limits to the extent general answers to this very general question will be helpful. You simply have to listen to products from the different brands to know if they are going to please you in your system. For instance, several people have recommended Krell and Levinson, whereas I personally have never been very impressed with either company's products, and most especially not from a price/performance perspective. I emphasize that this is a reflection of my own taste. While I have found a considerable number people who share my views about these brands, the larger point is that someone could probably say exactly the same thing about the products of just about any respected Hi Fi company. You simply have no way of knowing what you will like before hearing it.

Only slight familiarity with one of these (Krell). There are too many other top end companies not listed hear. Newmanoc already said it best. You have got to seek out brands and try to audition if possible, preferably in your setup. This is the only way you'll know which "house" sound will make you happy. It's believe it's seldom easy to accomplish.