Hey guys, Firstly I must confess my ignorance when it comes to GK amps, I've only ever used one once (and that was a couple of years ago) so I don't know too much about them. But I'm playing a festival in the middle of town in a little over a week and the gear on stage (which we've been instructed to use) is a GK 800RB and a Trace Elliot 4X10. Just wondering if there's any secrets to cranking killer tone out of the GK's or if they're relatively straight forward units. Thanks guys. - (i'll have about three minutes to get 'my sound' while I'm on stage).