I tried Home depot 12 gauge on a lark. $10 plus another $10 for banana plugs. Sound got much cleaner, extended lows and highs and more detailed. Pretty wild. Going to live with it for a bit and then we will see. Probably upgrade ICs first as those are a mix of Morrow MA1 and Radio Shack so called premium. Had to retire early due to health last month so need to be careful about spending just as I have time mm to listen more.