#1
I'm getting my pickups upgraded to the ZW 85/81 setup on my Ibanez soon, and while I'm at it I'm gonna rig it to use 2 batteries. (Gives it a warmer sound)

but what I want to know is, if I'm not happy with the tone, is there any turning back? Can I simply unplug one of the batteries and it will be as if it never happened? Or will it just not work at all once it's rigged for 2.
Mesa Single Rectifier
Marshall 1960A vintage
Rg3exfm1 w/ EMG 85/81
Big Baby Taylor Acoustic
Ibanez TS808
#2
you can reverse it, but it's not as easy as just leaving one battery out. you'll have to solder the original black wire back directly to the input jack.

it's not hard at all if you did the mod yourself.

here's a really helpful thread and it has ways to install a switch between 9v and 18v.
https://www.ultimate-guitar.com/forum/showthread.php?t=941907
Gibson SG Standard + 18volt EMG-81 & 85
Mesa/Boogie Mark IV + Recto 2x12
Keeley Modded BD-2
Vox V847a
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