Thanks.  That was one I was looking at so maybe I should reconsider it.  Some reviews said it ran hot and had a slight hum to it.   

I have a pair of beyer 990/250 and have been looking to buy my first amp. I don't want to spend more than $300.  I was leaning toward either the m-stage or the cute beyond.  Any suggestions?  Am I getting that much more spending 100 more if an m-stage?  Is there an amp you like better in the...