How long for speaker break in?
Can I expect the performance of the tone stack to change?

I just picked up a new Princeton Reverb and I'm surprised at how ineffective the bass and treble controls are.
I'm used to the tone stack on a Mesa where the 12 o'clock position is neutral and the bass, middle and treble can be cut or boosted from there.
On the Princeton I've got the bass and treble both set to 1 (1-10) and the amp is both too bright and bassy at the same time. This doesn't seem normal to me, how do I cut bass and treble if the default position is 1?

Cheers,

David
Vancouver, BC