#1
anyways, happy with this amp as far as a good practice amp goes (im not in a band or anything)...but i notice sometimes something weird happens as im playing.
ill be playing, and then a sort of squeaky-sounding noise comes out of the amp, and i get no sound out of it, and then as i look at the actual speaker itll pop outwards slightly coming off this effect.

im inclined to think its the cord, but if this is a problem with the amp itself id like to know
Fender American Strat --> Vox Crybaby --> Keeley Rat --> Marshall AVT 100
#3
idk...i have this same amp and it has never happened to me.
Im too full to swallow my pride!