I am in the process of researching a whole slew of mid-high gain amp heads. I will be using this for band practice ( in a big ass warehouse) and the occasional mid-large sized gigs. I have a Dual Terror that handles my small-mid sized gigs and home practice. As a point of reference I love my Dual Terror. Our band plays original hard rock stuff (we've been compared to Clutch). I don't like fizzy, buzzy, thin, sterile gain. I like thick, fat, punchy, raw, rude, in your face gain. Here are a few candidates. Feel free to add your own suggestion. Vote for the one that you like best. My budget is no more than $850 used. This amp needs to have at least 30-50 watts.