I got a new Laney B1 head a few days ago, pretty much the same sound of my old one thankfully but alot more powerful and generally better quality (aside from the tacky blue LEDs, the nasty flimsy controls and crappy carpet covering, all of which I'm gonna sort out if I think it's worth the time and effort when I get to use the thing properly). I've not had a chance to use it with a cab yet, but when I've tested the pre with my practise amp, the tube seems to make a pretty awful distortion even on the lowest possible gain setting with the output level really high to compensate. Doesn't do it as much with my Fender as it does with my ATK what with it having a lower output, but it's still there. Maybe it's just kinda nasty to my ear, plus the tube channel seems to be made for overdrive primarily, but it doesn't sound right to me. Are there tubes that are meant specifically for drive that you can't really make clean that it might be using, the thing is 2nd hand so it's not all that unlikely that it's a little screwed. If in all likelihood it's broken, what tube would you guys recommend to replace it? I play heavy rock and might use it to add a little drive to my FET channel, but I don't want anything too muddy sounding like I seem to have got with most of the tube amps I've used. The one it it - or at least should be - at the moment is an ECC83.