Hey guys, I know this has been discussed before but my questions are kind of time-dependent and the Search is disabled. So my questions go out to owners of the head: How Heavy is it? The Mesa website doesn't give that exact spec. How is the sound a medium/low volumes? Is it such a powerful tube head that it needs to be cranked to sound good? How long do the tubes last and how much would would it cost to retube? (what, like 18 tubes?) And, finally, any things I should look for in a used one, any possible trouble spots? All answers are welcome because its a used head at my local music store that could disappear pretty fast at such a good price.