Streamer upgrade - best path forward


Hello,

I’ve been running an NAD C658 for about 2 years now. I was using Amazon HD initially, but dropped them after several months due to inconsistent playback. I have a decent collection of ripped (FLAC) cds that I stream from a local USB drive connected to the C658. Recently began streaming Quobuz, and I’m really enjoying it so far. I will likely do a full year subscription with them after my trial expires. That’s about the extent of my digital interests.

I also have a decent sounding (to me) older Pioneer Elite dvd player that I play newly-acquired music or guest discs on from time to time. For vinyl, I have a separate phono pre that I run into the C658. So essentially the C658 is being used as a streamer, dac and a preamp.

The C658 has performed admirably during time of ownership, but I want to up the ante in terms of streamer and dac. The onboard dac has reasonable stage width, but not very good depth at all in my setup. The clarity and instrument separation are also decent, but I have definitely heard better. I find very confined in that I cannot run a separate dac with the C658. I use the dirac function (full spectrum), but I can honestly live without it. I find myself disabling it with more and more frequency as time goes on.

I have some additional closeted components that I can push into duty to serve as temporary preamp and dac so my plan is to upgrade the streamer first.

 

So my question to anyone willing to take a crack at this would be what is a good option for improving the streamer portion of the C658 within a budget of $3000? That would include the streamer itself as well as any LPS, switches, etc. I don’t want to go too far down the exploratory/DIY rabbit hole. I’ve already done the Pi and Volumio thing, but found the hardware rather finicky, slow and frustrating. BluOS is pretty nice, but it has many limitations when it comes to playlists. I am not at all interested in Roon.

I will likely want to output to USB which my old dac/preamp supports. Other associated gear in the chain is First Watt J2 running Zu Druid V. Subs are REL B2. The temporary dac/pre will be an Emotiva Stealth DC-1. Analog is Sutherland KC Vibe outputting for a Pioneer PLX1000 with Nagoaka MP150.

From time to time I sub in Philharmonic BMRs and a Jolida/Black Ice Audio Fusion 3502S. Just for a different flavor.

I have cross shopped most of the usual suspects, but I’m honestly confused at this point. One thing I am certain of is that I want the ability to upgrade the unit itself or the ecosystem in which it sits as time rolls on. The major downside of the C658 is lack of options outside of what it was originally packaged with. I’m currently intrigued by both the Innuos Zen mk III and the package of the Exasound C62 dac and Gamma server, but I’m uncertain how that would function without Roon.

Thanks in advance. 

 

adamator

Saga continued...

After the SGC i7 and Sonore gear I then focused on preamp/DAC. First bought a used PS Audio Stellar Gain Cell. Liked the build quality and soundstage depth but felt like it was lacking (especially when I originally was considering a Directstream with Bridge II). I returned the PS and opted for an Audio Research LS17. The LS17 is exactly what the dr ordered even when I was then pairing it with a much lesser pedigreed DAC (Emotiva Stealth). A sudden influsion of midrange clarity and beauty coupled with better etched stage with tighter midbass.

Next up, I injected Kimber Hero XLRs into the mix and bass definition and top end clarity inched up even higher. Nice gains for a reasonable price even when new.

I also started using Quobuz and then Roon about that time. Quobuz is very nice. Roon? I am still on the fence given their more recent price hikes - especially for the lifetime membership. I do like the integration and information, but the price hike I'm not on board with.

My last component upgrade was my most controversial (for me). The DAC. After much reading (and re-reading) of forums and reviews I decided to take the plunge on a Gustard R26. I took delivery of it about 4 days ago, and I have been putting it through its break-in paces ever since. Overall, initial impressions are outstanding even when using it straight out of the box and via the usb input which is supposedly its achilles heel. The soundstage is super wide. The clarity is incredible. The depth is probably a hair shy of what the Stellar GC was offering up, but bass definition is hands down better. The detail is there but it is not forward sounding. It's very relaxing but engaging at the same time. The build quality is superb for what I paid (msrp).

So there it is. I now know that when I sit down I'm going to be there a while. The system is leaps and bounds better than when I began this post a couple months ago (seems longer than that). One of my goals was to increase versatility with regards to upgrades and tweaks. I've attained that in spades. Speaking of upgrades, I will toy with an external clock and perhaps a D/D convertor for running I2S into the R26. I'll cross that bridge when I come to it. For now, calling a medic for my wallet and listening to beautiful music.

 

 

OP, thank you for all of the input and keeping us informed - please keep on doing so, especially in regards to the external clock and D/D convertor for running I2S into the R26. From what it looks like, this is how you have everything set up with your configuration: 

SGC i7 server > ethernet > FMC optical from switch > optical > opticalModule > ethernet > ultraRendu > USB > R26.

The ultraRendu is providing the stream while solely using the R26 as the DAC, is this correct? From what I've read, this is reportedly the best sonic path for the R26.

Because I'm thinking of following your footsteps, and if you don't mind, I have a few questions: 

In relation to the C658, is it safe to say that you have a wider soundstage, better separation of instruments/vocals within the soundstage, and not as forward of a presentation - a few rows back in comparison to the C658? Do you find the R26 to be "warmer" than the C658? 

Maybe I missed it, but I'm assuming your running the R26 directly into an amp. If so, volume control with Roon question since it sounds like you played around with it. Do you by chance know whether the R26 allowed Roon to use it's device controls? For example, if I move the volume slider up in Roon, is the R26's volume control utilized instead of Roon's built in volume processing? I've read conflicting information about this. If not, how did you control the volume? Fixed volume in Roon and then used R26's volume/remote or were you just using Roon's DSP volume?

Yikes, that's a lot of questions! If you answer just one, I'd be grateful.