Hi Sandra,
a quick little test to eliminate something...

Try quickly turning your volume control a dozen or so times in each direction.

Does the crackle diminish or even go away? Does the missing channel reappear? If so then I suspect the potentiometer (the device used for the volume control) is probably "grotty" - by moving it quickly you can temporarily create a clean electrical path on the Carbon track and the sliding contact(s).

Just because this is a new amp it doesn't mean that this can't happen, though it is less likely than an old one.

Other than that, as suggested, swap the speaker leads and see if the faults change channel. If they do then the problem is in the speakers or wiring, if not then the problem is internal to the amp.


--=-- My credo: If it's worth doing, it's worth overdoing - just ask my missus, she'll tell ya laugh --=--
You're only paranoid if you're wrong!