Non DR it sounds so much more coherent and musical.
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.
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!!
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
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.
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