In article , Chris Morriss wrote:
The only things in my experience that change their sound in the first
few days of operation are loudspeakers. (And then not by much).

My experience too. The ProAc Response D15s I bought a year ago sounded
very different to the demo pair for about the first hour of operation
but settled in to the familiar sound after the first day or so. Some of
that may have been my ears/expectations but not the first 60 minutes.

The dealer had previously tried to sell me the thesis of needing up to 6
months "running in." I think he was trying to "manage" no-fault returns.

BTW, I looked at the ProAc driver manufacturer's web site and they
recommended two hours of running in for brand new units before testing
their parameters.

--
John Phillips