I think it depends on the price.
I was very close to buy a used non DR 300 from 2012. If the UK pricelist from 2019 would be valid in Germany, I would have bought it. But in Germany you have to pay about 50% more for the DR-ing. Then it does not make sense to buy a used non-DR 300 in Germany. In UK it makes much more sense, as a non DR 300 plus upgrade costs as much as a used 300DR, if I am right.
But anyway it is difficult to find used 300’s
What I have heard so far, the DR is changing the characteristics of the sound. The mentioned test report describes it well.
Is this new? The Naim price list from 2019 says for 300 DR upgrade: £1,999.00 inc VAT and €1,899.00 ex VAT, so 2259 with 19%. And £1,999 is 2333 euros as of today.
And the SG Acoustics website in Germany has no 300 listed, but e.g. the 552 PS DR upgrade incl. recapping & service is listed as €3328 inc VAT as of now, which is £2851, and the Naim 2019 list says £2,999.00 inc
I just bought a 252 to replace my 282. I also have SCDR, 250DR, Titan 606 and I’m evaluating next step. NDX2 to replace my CDX2+XPSDR or 300DR. Probably source first .
Yes with a 250DR, I sold my 282 more than one month ago so all my system was off for a long time. Just installed I was not impressed but I know that need time to warm up, the day after it was different and today after few days on I can say to be fully satisfied. The most important thing is the effortless listening, also with that album not well recorded. Better soundstage, focus and much more resolution. I guess 252 will improve more with warm up, I really do not know how much time it’ll take to reach its best but I’m already amazed. Probably a NDX2 at side of my CDX2+XPSDR may worth. Apart the possibility to play HD files (I already have a Bluesound Node 2) is the NDX2 +XPSDR much better of CDX2+XPSDR or only a different presentation, timbre
I have the NDX2 + XPS DR and it is a fine source through my SN2. I’m expecting / hoping it might sound even better when the 252/250 moves in, as it’s all very nice already