I read a little about that amp you were looking about and it is 40w "max" whatever that means and the consensus is that is really about 8w RMS. Unless you are in the Hollywood Bowl that may still be plenty. There has been so much lying going on in the amp business, for so many years, it is not clear how much power is really enough.
If something has a heat sink about half as big as a beer can on each channel, I figure it is big enough for me.
