BrEpBrEpBrEpBrEp
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- May 3, 2021
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As we've seen in other threads, it's easy to set up a simple ABX/AB for DACs/amps (have a relative or friend switch the inputs). Such a test is perhaps suitable for someone looking to tell differences for themselves.
However, there are many possible ways to accidentally break the "blindness" of such a test, and an ABX/AB done as said above does not stand up to scrutiny.
Therefore, I thought it would be good to open a thread in order to collect cheap "ABX switcher" devices and methods, if they are available. That way members would be able to relatively easily set up their own reliable blind testing of physical devices, for fun and profit.
Hopefully we can find some devices, people who own them, and maybe get some measurements (crosstalk at least - should be pretty easy to check) to make sure they're suitable.
As @bboris77 pointed out in another thread, some apparently have audible tells on only one or two of the inputs, which would also disqualify them, so we should check for such issues by ear.
However, there are many possible ways to accidentally break the "blindness" of such a test, and an ABX/AB done as said above does not stand up to scrutiny.
Therefore, I thought it would be good to open a thread in order to collect cheap "ABX switcher" devices and methods, if they are available. That way members would be able to relatively easily set up their own reliable blind testing of physical devices, for fun and profit.
Hopefully we can find some devices, people who own them, and maybe get some measurements (crosstalk at least - should be pretty easy to check) to make sure they're suitable.
As @bboris77 pointed out in another thread, some apparently have audible tells on only one or two of the inputs, which would also disqualify them, so we should check for such issues by ear.
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