I have a spider II 30watt.
The clean channel plays just fine.
The crunch channel seems fine but not 100%
The metal and insane channel lose all base tones after playing for a short time.
I tried resetting to factory settings. It helps for a short time, but the base tones keep faling away and all that comes out the speaker is trebble.
I looked around on forums, and google, but didn't find someone with the same problems.
I looked if something on the circuitboard is burn but didn't find something wrong on sight, and all the capacitor look good.
Does someone heve an idea?