Non DR it sounds so much more coherent and musical.
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Non dr can be serviced at Class A and should be cheaper. A few reckon a non dr sounds better, that maybe true, but id need someone to explain why that should be. Put a 555dr on my ndx2 and was surprised at the improvement. A friend of mine prefers her xpsdr on her ndx2 though.
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I ended up going 555PSdr and found a fairly freshly serviced unit and over the last 2 weeks has run in nicely; as was said somewhere, with the 555ps, the combination is a complete bass monster!!
4 Likes
Great it wotked well for you. After all maybe is a speaker dependent outcome.
Great that the sound is still improving as the relatively newly serviced 555PS settles in
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Pretty sure it’s bias there.
Freshly serviced 555 is always better then tired kits.
Dont underestimate service due to older psu’s especially non dr.
Preferring a bare ndac over powered ones tels
a lot.