Jazzdogg
Less barking, more wagging!
I've never had an amp change its characteristics though a gig. That includes my EA doubler. On the other hand, it's really common for our ears to become fatigued when exposed to loud sounds/music for extended periods of time. "Compressed and ugly" pretty much sums up my experience when I've been exposed to high sound levels for an extended period of time.
The example that comes to mind are the folks mixing sound that do not use earplugs. After an hour or two, you'll notice the highs getting turned up as their ears numb out.
If this sounds like what's happening to you, I strongly suggest that you try using some ear protection when you play those louder gigs. These days you can get good ear protection that's both relatively inexpensive (hey, what are your ears worth?!) and "unobtrusive".
Prove that you're smarter than us geezers and avoid getting tinnitus![]()
+ 1 and it gets worse if the listener is drinking alcohol; as his ability to hear HF diminishes and he compensates by cranking the highs, the rest of us experience bleeding eardrums
