Hi,
my DL4 works fine first few minutes - after that it creates some scractching background noises.
So it works still ok, but backrgound has extra noises. If I unplug guitar chord - it's quiet as it should be, ie. fine.
Plug it in, and backgound starts again.
If I let that box to cool down - it works again for some minutes OK.
Any hints I should try ??
Cheers,
timo