My nephew has been using a Cube60 for a while now and is in a band where the other guitarist has a 120w (I believe it is transistor) amp and can't keep up volume-wise. They play old and new metal, hard rock, covers. He is interested in a head/cab configuration, uses a Boss Metal Core, and a Zoom G2 (but depending on the amp and it's gain may not need to use them..or just use effects). I am trying to help him figure out which amp to get, and his budget is around approx. $1000 dollars for the head and some less for a 4 x 12" cab. Can anyone help out with some suggestions? I was thinking tube, but is transistor also good for metal? I was checking out a Carvin Legacy, but am not sure if that is suited...or if there is something better. Thanks for any help. Also cabinet suggestions?