Nick Gorham wrote:
Don Pearce wrote:


But which effect is being heard in the blind test? I note he didn't
claim double blind.

What does ITU-R BS.1116-1 specify?


Something he can't possibly have done - a reference. That would be the
same speaker, but with no caps of any kind in it. And of course it would
have to be exactly the same speaker - the differences between two
samples of driver would be much bigger than what he is describing.

The BS.1116 system would let you listen to the reference, then each of
the two alternative capacitors and make your choice on which you prefer.


d