I have it on my Wyred 4 Sound Dac2 and Integrated amp. I can almost always hear a difference on my recordings and have a preference one way or the other for a given recording. I switch from the listening seat via the remote so I don't need to get up and down and the reversal is instant. Since the reversal is done in the digital domain, I don't think it affects the sound quality at all.
I have another "more pure" system without polarity reversal and I really miss having polarity reversal in that system.
I have another "more pure" system without polarity reversal and I really miss having polarity reversal in that system.