Bose Companion 5 multimedia speaker system. Sound problem needs software update

Description

I bought this years ago and they worked just great. One day the highs started to sound funny. Could not fix the problem so I bought another used subwoofer and this salved the problem. That is until last week when the replacement subwoofer did the same thing. So this tells me that the left/right speakers are not the problem. The woofer is also not the problem because it still works, the problem must be the electronic inside the box.
Cosmetically all 3 pieces look great.
Missing the control pod
. Includes power cord.
Left/Right speakers in great working order.  Subwoofer box has an unknown issue.
I also have the other subwoofer listed in my other auction.
update:
I was told that all they need is a software update from Bose.