Treated my interconnects with Deoxit D5 today


I have a nice audio system and had a great notion to clean all my connections with alcohol and treat all the connections with Deoxit D5.  I did all the fuses as well.  Well, the result is that the system now sounds flat and lifeless as hell... way different than I previously heard.  What's up with this?  I am crestfallen...
whitestix
Ah, the smoking gun...

As with cables and electronics, you also need to burn in the deoxit. Just kidding. I have only had the opposite (good) result when using Caig's products on all contact surfaces.
Honestly sounds like you may have inadvertently mixed up an interconnect or speaker cable when replacing them all.
Maybe give them all a double check and make sure all the pos and neg are correct, easy to do for sure.

Good luck