Audiophilepure

I had a chance to try briefly the Pre5 headphone feature and found it to be a decent performer, which should delight the headphone users out there. Therefore, without reservation, I could say that the Pre5 and REF501S were competent performers all around. Towards the end of the review, I swapped out the REF501S with its predecessor, the REF500S. The comparison revealed slightly different sonic characteristics between the two amplifiers. It seemed that the REF501S traded a slightly warm and laid-back presentation of the REF500S for better transparency and a slightly more intimate soundstage. To be clear, this comparison did not reveal that one was better than the other. In my opinion, the two amplifiers exhibited about equal level of performance; they are just slightly different in their musical presentations.

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