They probably need to hear themselves better. Both pickups helps them do that. I'm assuming this because they are all DI. Could also be the monitor setups are inadequate for what most are used to hear.At church, I play bass sometimes (and love it). But overall I run sound a lot more of the time.
We have a rotation of players who all have their own basses. One thing I have noticed is that bass players who bring a bass with two pickups.......99% of them crank both pickup volumes (or have the blend knob dead center).
From my perspective as a soundguy, this creates a challenge. Depending on the player and the bass they are using, the phase cancellation and midrange reduction from that can reduce their sound to largely an atonal rumble. What's even worse is folks with active basses tend to crank their bass EQ. It gets to the point where it's hard to fix with EQ at the mixing board. Sound people aren't magicians: poo in = poo out. We can only polish it so much.
Two questions:
1. Why do an overwhelming majority of people crank both pickups, crank bass EQ, etc.? I will admit that both pickups all the way up can sound pretty good while playing at home, but I NEVER do that when playing live for the reasons mentioned above. Even backing off one pickup a little can help immensely.
2. Do you folks who run sound consider both pickups cranked an issue and what do you do to address it? Or how do you address players who otherwise have subpar tone coming into the mixing board? It seems like every week there are conversations over the talkback mic with me asking them to adjust the controls on their bass. I feel somewhat invasive doing that, but ya gotta do what ya gotta do. One thing I may try in the future is to talk to bass players before practice starts, but there are often time constraints that can make anything but quick small talk a challenge.
Note: all bass players run straight into a DI.
All guesses of course.