Audio Signal Run Through a Banana

The majority of those connections looked to be copper wire with whatever alternative connected in the middle. Certainly the percentage of the copper vs other is a factor.  
 

Either way, I’ve never had really expensive cables, but I do have good cables that have made a difference, and I’m not giving them up anytime soon! 

Make sure you use an un-ripe, green banana. The top end will sound a little too 'soft' when it gets ripe.

If it turned out that green bananas really did sound better I guess I could get along with that. I like bananas so I'd just have to plug in new cables as the old cables ripened, and then eat the old cables. The problem is that by the time you burn in a cable it's probably getting fairly ripe. I wonder how burned in bananas taste? 

Burned in cables taste like Bananas Foster. 

Banana XS-Series Omega Mk VIII (bananas or spades): It’s got electrolytes!