Communitys Question: Jp 7 low B string gauge question. By ernieball.com - July 10, 2017 Share on Facebook Tweet on Twitter Question: Jp 7 low B string gauge question. Out of pure curiosity…. What’s the biggest gauge low B you can put on a JP7 without any modifications? Sent from my iPhone using Tapatalk read more Source: http://forums.ernieball.com Tags: Ernie Ball, Ernie Ball Guitars RELATED ARTICLES ditto x2 automatically resetting itself Want to bypass the power-on switch original tc pedals Live® Stream™ News™ Online Vortex Tone Print Editor won't recognize my Hypergravity Mini World Cup Russia 2018 South Korea vs Mexico Live Question: HSS Cutlass pickup white covers?