Hi,

"Glenn Richards" wrote in message
. uk...

We can rule out the "psychological" factor, because I was expecting a
difference when switching from bi-wired to bi-amped, and heard none. Yet I
quite clearly heard a difference (as did my friend who was in the room with
me) between single and bi-wired.

I can't offer any explanation, but expectation bias doesn't only work
as you suggest. As non-objective humans, we have subconcious
bias that can affect us both ways - hearing things we don't expect,
and not hearing things we do expect. Simply because you thought
you might hear something and yet didn't does not exclude bias as
a factor.

Personally, I find it most frustrating when I can't hear something
that I *know* has changed - nothing to blame but my hearing
in those cases.

Regards,

Glenn.