Having all matching case frontages and green logos is part of the reason we’ve been keen to finish our classic based system before the lineup changes style. Eventually convinced SWMBO to allow 6/7 boxes into lounge (subject to a nice rack) but she’d draw the line at a mishmash.
I’m not sure on roadmap for the 300. If we don’t get there in time for current classic there’s always lightly used.
Having spent a fair while at my dealers trying to convince myself that an NDX2 sounded better than an ND5XS2 as digital transport, but both eventually gave in and conceded that we could hear no difference.
Not to be put off, he then got out the ND555 and tried that and we had to concede that there was a small improvement. Not nearly enough to justify it as a digital transport of course, but the difference was there.
Initially we were using a SN3 into Kudos S20s that he happened to have set up, but just in case this wasn’t revealing enough we repeated the experiment with his 500 system which is where the difference eventually became apparent.
I had a ND5XS2 and NDX2 at home and tried the digital outputs feeding an nDac. The NDX2 seemed slightly better however I also tried NDX2+555PS into nDac and to my ears there was a big uplift in the quality of the NDX2’s digital output when the 555PS was connected.
This could be explained by the reduction in noise flowing around inside the NDX2 because of being powered by the external psu - plus some uplift due to the improved supply of electrical energy flowing from the 555PS compared to the internal psu.
The EM noise within an NDX2 is arguably greater because it has a larger internal psu than the ND5XS2, and because of all the extra circuits the NDX2 has, e.g. for the colour screen and remote.