Internal Amp Speaker Wiring - Board to Post

Hi Guys, I have a question for the experts here, one which even stumped a guy I know who does this for a living.

I've had great results upgrading amp internal speaker and signal wire. I've used some specialty stuff with impressive SQ outcomes, trouble is, stuff is expensive. The negative post just goes to ground most times - question is, when upgrading the wire, would leaving the stock wire for negative/ground be alright? Would I gain the sonic benefits of upgraded wire (in my case pure silver) with just changing out the positive lead? Assuming the gauges are the same.

What do you guys think?

Thanks!
 
The wire of either polarity is equally important.
"Just ground" is not a thing.

The EXACT same current goes through the red and black terminals.
If one is important, the other is equally important.

The same thing goes per individual driver internally.
See Kirchhoff's law in EE101.
 
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