I have been intrigued for a while by the reviews of the NDX2. But I was, however, hesitant to spend the large amount of money necessary to buy a NDX 2, because I thought I would still end up with a sound not as good as that of my CDX2 cd player. Because other CDX2 owners might have the same hesitation I thought it could be helpful for them to write down my first experiences in comparing the two now I recently bought a NDX2. In particular because Naim does not produce the CDX2 anymore and one has to bring his or her own CDX2 to the dealer to compare or ask the dealer for a home demo of the NDX2.
I have compared the NDX2 with the CDX2 using a Supernait 1 amplifier with a Hi-Cap power supply (which is not necessary anymore with the Supernait 3, according to Naim) and ESL 63 electrostatic loudspeakers, which are still the closest to the live sound in my opinion (and I have heard many other high quality loudspeakers). Not only for classical music, but also for the bass of Jaco Pastorius and the guitar of Jimi Hendrix, thanks to the Naim amplifier and power supply. I have an earlier version of the CDX2 without a digital output, so I can’t single out the effect of the different DACs on the comparison.
I am using the streams of Qobuz in CD quality on the NDX2 to compare to CDs on the CDX2. To determine the effect of streaming in the comparison I downloaded a few hi-res recordings from the 2L-site. When I compared e,g, the piano sound of Christian Grøvlen in Bach Chromatic Fantasia and Fugue from the album Inside Polyphony in the Stereo DSD 128 version on the USB to the sound of the album on Qobuz, I found that the differences were small enough. Which is, I think, a big compliment for the Qobuz sound quality.
I start the comparison with a live recording of Schumann’s first violin sonata by Martha Argerich and Renaud Capucon from the 2008 Lugano festival recording. The reason I chose this one is because I was in the audience. And although it is a long time ago it still helps me in judging especially the placement of the instruments between the speakers. And that is exactly where I found the NDX2 better than the CDX2. The piano is more behind the violin where it has to be and there is more air around both instruments.
The second CD I compared is a duo CD of the saxophonist Houston Person and bass player Ron Carter Remember Love. When I listened to the first track Love is here to stay on my CDX2 I always felt that you could not have a more natural saxophone sound, especially because you can ‘see’ Houston Person playing and breathing in your room. But to my surprise that breathing was even more natural on the NDX2. And also the bass of Ron Carter has slightly more punch on the NDX2.
The Third comparison is the CD The naked ride home of Jackson Browne from 2000 with excellent arrangements and great musicianship of the band that accompanies him in a very live sounding recording. When you listen to the track Sergio Leone you can hear that very well. Here the sound of the CDX2 seems to have more power (especially the bass and drums) than the sound of the NDX2, but still the NDX2 lets you hear the individual musicians better.
I had hoped that the sound of the NDX2 would get very close to the sound of the CDX2 and also with CD quality streaming sources that is the case. This with the additional benefits of a more natural sound due to a better placement of the individual instruments and with more air around them.
But I will still keep my CDX2. First to really rock when your neighbors are not there. The limitations of the streaming sources make it less possible to feel the bass in your stomach than with the CDX2. But also because there are still labels that are not available through streaming services. Like Praga, with their beautiful Prazak quartet recordings, and Hyperion. Hyperion told me there are no plans to go to streaming because the financials just don’t work for a small independent record label like them. They expect the net effect of going to streaming to be negative despite the declining CD and download sales in general. And last but not least, because I have thousands of CD.