A question on my basses sound

[Jason Wilson]

Hey guys and girls, I've just been playing around on my new Black Tiger and been trying different settings out.
I have a question regarding an overdriven sound I've been getting.

If I have the pickup selector in the middle, I have that cool Smith sound no matter what I do with the either the bass, treble, parallel switch, mids etc.
But I've found if I put the pickup selector full to either the bridge or neck pickup, have the bass up full and have the switch in series I get quite an overdriven sound. Definitely a bit of distortion. Is this normal?

It won't be the battery as I've only just received the bass.
Does anyone else get this overdriven/distorted sound with these settings?

Keen to hear from you all