I bought a Carvin R600 a few years ago, but have never played out with it, only practiced. Well now, im looking to get out playing again after a few years hiatis and I read a few posts on here of people stating the Redline series is unreliable. I agree its not a very good head and I most likely will have to replace it, but, what is unreliable. No one has stated what goes wrong with it. I dont want to be onstage in front of thousands of people (OK, maybe thirty) and have this thing go down, so everyone who says its "unreliable", please elaborate.