My vote tends to go for *informed* choice. Hence I'd like people to try and
understand the physical and engineering reasons why there may be differences

I completely agree. I'm sure you know by now that I hold engineering in the
highest regard. I doubt whether this is practical, however, and this raises a
whole other raft of questions about what we are measuring etc etc. There are
times when it is just a case of 'I prefer A to B' and I don't think that is
intrinsically wrong. If I had the equipment and knowledge and time I'd love to
measure things, but I'm an amateur builder and have limited time to spare. I
am, however, a professional musician and I do know exactly what I'm listening
for, so that's some help.

=== Andy Evans ===
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