garym wrote: 
> Summary for Benchmark:  no ability to reliably detect any difference
> between either the Transporter internal DAC vs Benchmark DAC or the
> Touch internal DAC vs Benchmark DAC. By the way, I *keep* the Benchmark
> DAC because I moved it to the beach cottage in a small Touch-based
> system where I like the ability to use the balanced outputs of the
> Benchmark in my connections.
> 
> Summary for CD Player vs Network Streaming: no ability to detect any
> difference (controlling for different DACs, internal vs external, etc.)
> 
> Summary for Codecs:  depends. Eventually I can create low enough bit
> rate lossy files to detect differences. And how low depends on the
> nature of the music.
> 
> In all cases the significance tests above I recall that the p-values
> were quite high (not able to reject the null hypotheses of "no
> difference") except in some of the CODEC tests where I could reject the
> null with p-values < .05.
> 
> Of course to some audiophiles the above can be summarized by simply
> reporting that "my system is not revealing enough"
No, I would say that your "carefully constructed double blind tests" are
very revealing, indeed.


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