paul packer wrote:
On Tue, 25 Oct 2005 23:28:39 -0400, "Robert Morein"
wrote:


wrote in message
.net...
Mike:

Another example of ABC (With hidden reference ) is attached below. In this
test Bang & Olufsen's spin-off amplifier company "ICE Power" used this
method to determine whether there was an audible difference with a filter
removed from their class D amplifier. They found that listeners could not
tell the difference.

The fact is that very few audio companies do controlled double-blind tests
period... ABX or any other method for that matter. Harman is one of the
very few companies that do valid controlled listening tests, which is the
reason I work here.


Thanks to Sean for PROVING that ABX is not widely used in hifi design.
Thanks to Mikey the mckelviphbian, WHO HAS NEVER USED ABX, for posting this.

3) The standard specifications (amplifiers and loudspeakers) given by
manufacturer's are largely misleading indicators of performance and
sound quality.
Making a purchase decision based on these specifications is like
rolling the dice in Las Vegas..

So it would appear that specs do not define the sound quality of amps.
Thus all well-designed, similarly measuring amps do not sound the
same. Or am I mis-reading here?

Yes. *specs* are not the same as *measured performance*.