On a Onkyo M-504 I tested 2 different pre-amps ( onkyo p-304 and Advance Acoustic MPP-206)

On a Onkyo M-504 I tested 2 different pre-amps ( onkyo p-304 and Advance Acoustic MPP-206)

vintage stereo
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I didn't heard a difference. If you hear a difference you have very good ears.This was just a video to see if there was a difference between these 2 pre-amps. In real I also could not hear a difference. There is probably a difference but my ears are not trained enough to pick that up.
Tested on Heco the statement
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