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Re: A/B testing methodology question

> > Could the listener's hear any switching? < <

As far as I could tell, the answer is no. I was behind the equipment rack the entire time of the test, and the tweak does not involve anything that would make any sound.

> > Did the tweak make a level difference? < <

The general consensus was that the tweak lowered the noise floor, so the perceived level increased. The tweak is a "passive" tweak, so it did not involve anything that would change the voltages in the system.

> > Did your tone of voice or body language indicate something? < <

Everybody was certainly aware that I was going to be implementing a tweak. But their eyes were closed from the start to finish for each run, and I did not say anything while the music was playing the entire time.

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