Components that include elastomer materials, speaker surrounds, and phono pickups can be expected to loosen up, and sound different after some use. Extended LF response is easily measured.
When it comes to electronics, wire, equipment racks, I doubt that anyone can measure any change, although they claim to hear something. Between the ears IMHO.
When it comes to electronics, wire, equipment racks, I doubt that anyone can measure any change, although they claim to hear something. Between the ears IMHO.