Hello everyone, first post! I've done some research and tried contacting EMG but they haven't responded. I currently have the 57/66 combo on my 8 string and would like to go with the 81x and 85x versions. Am I correct in that the tone pots are not compatible and must be swapped? It still runs on 9v right? Switching to say a SD Blackout set instead would be a direct plug in without modification? Thanks for any help and confirmation!

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