Mcintosh ma6900

I have owned my Mcintosh ma6900 integrated amplifier since 2002; it recently came to my attention that I could replace the jumpers for the amp/preamp sections with a quality interconnect. The sound quality improvement of this was startling! Anyone else done this?

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I have the 6900, which interconnect did you settle on?
I have the analysis plus silver and copper. It depends upon the tone you want. The copper makes it a little warmer. Give it a try, I think you will be impressed with the dynamic improvements!