I've been a dissatisfied with the high gain channel on my Egnater Vengeance and tonight I did some tweaking to get it towards a more Marshally sound. I put the mids at 2 o'clock (2 o'clock as in an actual clock) bass at 1 o' clock and treble at 2 as well, I adjusted the gain as I changed what I was playing. The Vengeance also has built in boosts and I boosted the mids and I got a nice slightly angrier than a Marshall sound but I think I'd get there all the way by changing the 6l6's to EL34's. My question as the title says, how much of a difference to tubes really make, will it be night and day or will it be more subtle like switching GT-75's to V30's?
Thanks in advance