Does it with all the Recto's aswell dude
Well what can I say... it doesn't need to be this way, and it's bullshit!
As I told the guy... I'm a bit anal about this kind of thing. None of the Orange amps do it. They use optical switch I believe, which is immune to this kind of thing.
As I understand it, imagine a gate to a field. You kick it open... it swings right around, and hits the wall next to it. It bounces off, the wall takes some force out of the swing, and the gate comes to gently rest against the wall.
That's effectively what happens with these relay switches. And amp companies use them because they're cheap. They build in workarounds to get around the popping and clicking. This is the reason why a JVM has a bit of silence between channel changes.
And as I said; I'm just really anal about this thing. The guy said that because it isn't in the preamp circuit, that it doesn't make a loud pop when the amp is turned up loudly. Well... I'd still feel a bit miffed even if that were the case, and fundamentally... I'd end up selling the amp because I got pissed off with the popping.
The guy's a nice enough sort, but for all I know this is the exact reason he's selling it!!
As for the Recto doing it... I don't recall it doing it with my Rectoverb, but back then I was more concerned with br00talz than I was with tone, which is why I fell for the Rectoverb in the first place!