It’s not about the regulation (FWIW most amps are unregulated - ironically Naim are one of the only makers of fully regulated amps, although the NAIT XS3 is not one of them), however, Naim amps don’t have extra induction networks on their outputs, relying instead on the speaker cable. They like a speaker cable with low capacitance and moderately high inductance. More info on this here;