PJ pickups and uneven string volume.

I’ve noticed that with my Carvin PB5, with Nordstrand NP5 and Big J Blade pickups, I can have even string volume with either pickup soloed, but then when the pickups are blended, the A string is louder. Sometimes it’s not a big deal, depending on location. In a small room, I don’t notice anything. But a couple times in the last few months, in different large locations, it became a problem. I’m probably more picky than most people, so I’m not saying it makes the setting unusable, but it’s enough that both times I decided to just go with the P pickup. Any ideas as to why and if there’s a possible fix? Again, each pickup soloed is fine, so it shouldn’t be a string height issue.

 

Yeah that was my thinking. I wonder if having a preamp with active blending like the Audere would help with the issue.