There are many class A or AB amps that have similar bandwidth but nobody talks about phase shifts.That’s because good ones are usually much faster, and they don’t freak out at low impedances like ClassD does in distortion and loading.
I like to see bench tests v reviewers subjective listening. As Stereophile does.
But here is what a reviewer from another mag said subjectively, without any bench test to back his listening.
" Here is what the amp doesn’t do. It isn’t airy and it isn’t laid back."Good highs are airy, they float with harmonic structure.
Cheers George