What happens is often and randomly the sub stops giving out sound but the 2 speakers with it work but loose the extra oomph and have lower sound.
Randomly it comes back on again, and off again.
Sometimes it will only last 10 seconds before going off and I need to remove cable from back and reconnect and it works again, but it may last 10 seconds again.
It seems to go in cycles, sometimes as I say it will last 10 seconds, and even when I power off and on again it will last 10 seconds again, then lasts 10 seconds again and so on.
Other times it will last a few minutes up to about 20 then when I power off and on from the mains or removing cables again it lasts 5-20 minutes so I dont understand.
Only problem I ever had with them is one of the ends of the din cable had a few pins bent when I first got it but I bent them back so maybe its not touching right.
The other strange thing is though the sub has no power the 2 speakers still do as I say so it must be getting power so why isnt the sub working?
This is with both optical and coaxial imputs