Got a Node 2i, what's next?


So, I admit that I'm not much of a digital guy.  I ordered an Node 2i for the main HT system mostly for Amazon HD.  Much better than roku --> Denon AVR-X3600.  I liked it so much I ordered another for my previously all analog 2 channel system.

It's not bad, and convenient. Not even close to vinyl on the same release and level matched recordings, but then again, I didn't expect it to be.  I keep reading about how you can easily improve the sound by adding in an external DAC.  Here's where I get confused.

I don't want to spend a lot on a DAC, because at best it's a secondary source.  I'd feel comfortable in the $500 - $1000 range, but I'm really confused over the options and how they relate to sound quality.

First, r/2r vs I guess delta sigma?  What are the sonic advantages of either, there are widely differing opinions there.  I understand how each works from reading around, but how does it relate to sound quality?

Second, multibit vs whatever else.  Same basic questions, what are the basic sound characteristics of each?

Third, oversampling or no.

And lastly, what bitrate/bit depth is considered adequate?  24/192 seems to be standard but some dacs only have 24/128 over optical.  Will this make any difference real world with HD streaming?  I also have an old NAD cd player with coax digital out I might want to hook up for kicks.

I've researched three so far, the Denefrips Ares II, , the Schiit offerings below $1K, and the Cambridge Audio DacMagic 200M.  I would like to have balanced outputs to keep the digital circuitry as far away from the analog stuff as possible.

Thanks in advance for your answers.



vinylzone

Showing 1 response by taww

Congrats on the Node 2i! While I don’t have one, I’ve bought PowerNodes for (granted not very audiophile) family and friends based on the reviews alone and they are really happy with them.

Another vote for RME ADI-2 if you can swing it. Really excellent, neutral but not dry. Much better than Ayre Codex in my experience. With the Ayre I was always itching to go back to my PS Audio DirectStream; not nearly so much with the ADI-2. There’s also a few good comparisons online to the Chord Qutest, where the ADI held up pretty favorably. I don’t know that it will be THAT big of an upgrade over the Node internal DAC though. I thought the Node 2i was pretty good as is?

What I like about the ADI is, as you’d expect from pro gear, they have achieved bulletproof performance through a high degree of technical sophistication. Eg it performs and sounds as it should with a very ordinary power supply. Sure, its performance is capped by the internal switching supply and op amps, so it will never sound like a MSB Reference or what not, and some DACs at 3-5x the price will better it in aspects. But it gets 80-90% of the way there with zero effort. I’ve noticed that while I prefer my DirectStream, it’s not as consistent - eg the “sounds better late at night” phenomenon is way more pronounced with the PS Audio, which is also sensitive to power cords. The RME I can just throw on with an rPi over USB and Mogami interconnects and it will sound reliably great.

There are a couple things things to watch out for with the ADI. It is pretty much dead neutral, so if you are looking to add some flavor to your system or make digital resemble vinyl, look elsewhere. And if you really need to use it with balanced XLR - the performance seems somewhat compromised via RCA. Sounds like that won’t be an issue here.

With respect to all the other opinions here, I would not worry too much about R2R vs. bitstream. My experiences do not align exactly with the character some are ascribing, especially “musicality” which is highly subjective. I don’t find one architecture to be inherently more musical; the most I can say is that ladder tends to have sharper leading edges, which makes sense since it has theoretically infinite slew rate, while the gentler analog filters of bitstream might make it a bit smoother and more coherent top to bottom. In any case, the overall implementation of the entire DAC matters much more. Case in point: my previous reference DAC was based on PCM1704 ladder, passive IV and tube output stage. My current - bitstream FPGA - could not be more different in technical approach.

As always, just $.02!

Cheers,
TAWW