OK - so I've got the amp that'll last me for a good while... but I have 2 questions about it (bear in mind that it's second hand). The guy who sold it to me warned me about the issues I'm about the mention, so that's not a problem... I just wondered if anyone could shed any light on them. When I first turn the amp on, for the first 5 mins or so (while it's warming up I presume) it crackles... like someone's fiddling with some internal wiring. After 5 mins, it goes entirely and never reoccurrs until I turn it off and it cools down. Anyone got any idea what this could be? The guy said he took it back to the shop a few times, but they couldn't pin-point it. Secondly, whenever I play a note, hit the strings or catch them, regardless of the EQ settings or any options that are set up, the amp seems to "wake up"... what I mean, is that it plays the note, but there's 'noise' in the back ground... once the pickups stop transmitting the noise, it dies down again. I thought it might be the valve, but I turned it off and it still happens! Any ideas? Although I can live with these issues, I'd be greatful for any feedback, thanks in advance!