Quote Originally Posted by DSJR View Post
The Centre position on the UK made 401 and 402's wasn't the "flat" setting. I'm sure I remember there being "calibration" positions marked on the backplate where the knobs were aligned to, the mid almost fully up I think from long-ago memory.
I haven't got the crossovers out yet, but will measure them in the factory set position which, as you say, may not be the centre of travel.

I do have a digital sound meter and can plot responses, so will do that once I've built them and bought some stands for them.