Sound differences between Copper and Aluminum Bus Bar Electrical Panels


I have a Square D Homeline electrical panel that has an aluminum bus bar and I'm wondering if anyone hear went through the trouble to change the electrical panel to a copper bus bar type such as the Square D QO or any other manufacturer.  What audio improvements were heard going from aluminum to copper????  My system consists of top end components with a full loom of SR Galileo UEF cables, SR Active Grounding Block SE and an SR Powercell 12 UEF ac power conditioner.
mikeg
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I'm 100% with Erik Squires. And to retort "This is a basic question" is silliness. Virtually nobody is asking questions like this. "My guitar tone has too much grit. Can you check the breaker panel for aluminum or copper bus bars?" said no musician in the history of recording. 
@jea48 
Uh...... YEAH. In fact I'd say how that makes your stereo sound is the least of your worries.