Hi

I have a pair of good KEF speakers (Q15.2) I' using for the office PC sound.
I have build my own simple Amp for these speakers (low grade 50W class AB).

Lately I've finished a self-designed SAB-NAF (Coupled Cavity) subwoofer that
is driven by a Denon Mono Amp., but I'm unsure of how to align the
line-level cross-over filters for these. Whether to use single or multiple
order filters and how they should overlap?

One method would be to do an actual measurement of the response of the
speakers/subwoofer to ensure a flat line all through the spectrum. Any
ideas?

Thanks

Klaus