Overall a good review, but I found the reviewer's observation of the AMPHION having less BASS than the KEF interesting, since stated specs and high quality measurements don't tell the same story.

He writes: "Amphion’s claimed frequency response of 50Hz-25kHz, +/-3dB, measured nearly flat".
KEF claims: 58Hz - 28kHz +/-3dB (the author suspects a boost to the midbass, which could explain what he is hearing)
All in all a good review.