olddude
Headphoneus Supremus
Just to add to the mix, you could also look at the C&C BH, for about $100. Lots of folks seem happy with it as well. I use a JDS Labs C5, but that's more than double the cost of the E11. Keep in mind that these smaller amps don't seem to handle big earphones for some people (I use iems). You might want to read up on that here in this thread.