Dimarzio Utopia on Ibanez RG550 genesis. Neck series parellel switch 

I added a switch to go between series and parallel configuration on the neck humbcuker. On clean tone, it adds brightness tha compliments position 4, neck split + mid. Distorted, the effect of parallel wiring is more sublte but it adds more trebley brightness that allows harmonics to come out more.

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