In article , Don Pearce
wrote:


Actually of course, particularly for somebody like Glenn, with no
technical expertise, there is a very high probability that biamping
would produce audibly different results, given that his chances of
equalizing the gain between the high and low channels is vanishingly
small.

The problem is, alas, more general than that. The reported
proceedure/method gives no real way to assess anything about either the
reliability of the results, or to exclude a wide range of possible
'alternative' causes for the 'resullts'.


Then of course there is a good chance that he would accidentally
inject mains hum into a tweeter and fry it. And of course he would have
eight opportunities to get the phase wrong.

Somewhere near a zero chance of getting it right, in fact.

The problem is that we can't make any estimate whatsoever on the basis of
normal experimental analysis since the test proceedure makes this
impossible. Alas, results which could mean anything end up meaning
nothing...

The shame, here, is that I can think of at least one theoretical mechanism
by which bi-amping and bi-wiring might sound the same, but differ from
using one amp/wire. So the claims Glenn makes are consistent with one
physical model. But the way he carries out the 'test' means his report is
virtually useless for assessing if his results actually support *any*
specific hypothesis. :-/

Slainte,

Jim

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