Lately i've noticed that when i turn my peavey xxx 212 combo up to about yelling volume i can hear the tubes ring out when i hit a heavy chord, (espicially on the clean channel). The amp is a few years old and used with the same stock tubes it came with. Is anything wrong with the tubes???
r u sure???
my amp seems to sound fine although i dont have another xxx to compare it too
i also rlly dont have the money to retube it right now
i think i've heard about this problem with the xxx combo. you might want to check the harmony-central reviews on this amp (i think its for the 40 watt, effects model). that the speaker rattles the tubes.