Question about DSD DACs


Apologies if this has been asked before (it probably has), but I'm a little confused about how DSD is decoded in the newer DSD capable DACs. My current disc spinner is a Cambridge Audio 751BD universal player which, according to the owner's manual, can output native DSD only through its HDMI output. Since my DAC (Bryston BDA1) has no HDMI input, playing SACDs can only be done through an analog (RCA) connection to my integrated. With this connection, as I understand it, the signal is output as PCM, though what its resolution is I can't quite tell. What I CAN tell is that the resulting sound is rather shrill.

At some point I'm thinking that I'll want to upgrade my DAC to a DSD capable one, but I'm not sure how these newer DACs process SACDs. Will I hear the signal decoded as DSD without conversion to PCM? Some DACs (like the PS Audio PWD MK II or Bryston's BDA3) boast HDMI inputs but I couldn't tell from their literature whether it's even possible to use this connection to a disc spinner to play SACDs in 2-channel, or how the signal is processed through such a connection.

Thanks for your help with this--it will assist greatly in making choices when I decide to do this upgrade.
cooper52
" It sounds like this isn’t as simple a process as I’d hoped for, that is, putting a disc in the spinner and having it play back the SACD layer in unconverted DSD format. Experimenting with my system as it stands, I actually like the CD layer better (it’s a little warmer and less shrill), but it’s running through entirely different processing than the SACD layer, which relies on Cambridge Audio’s own onboard DAC chips instead of my outboard DAC. I do have the system set to read the SACD layer in stereo, so it is presumably the PCM conversion I'm hearing through the speakers."

That's really good observation. For the most part, you're correct, but I would add a bit more to it. When SACD first came out, most of us did the same thing, myself included. We all bought reasonably priced SACD players to try out the format. Most of us were underwhelmed with the results. And the reason turned out to be fairly simple. Did I really expect the mass market Sony 9000ES player I bought for SACD's to outperform my 10k Wadia? I did, and that's why I bought the thing to begin with, but it turns out that the superior format, by itself, can't overcome certain obstacles. We're not talking about comparing records to CD's. The difference between CD and SACD isn't that big. A well designed CD player can easily outperform a run of the mill SACD player.

Taking the above into consideration, this is what I would add to your post. You're not considering the analog portion of whatever dac/cd player you're listening to. Yes, the difference may be due to technical factors on the digital side of things. But its just as likely the differences you are hearing are due to the analog portions of the dac and disc player.  Its all to easy to forget that the A in DAC, is half of the component, and it should be treated as such. 

My advice would be to focus on what you listen to the most. If you listen to 90% CD's, focus on that. Get Redbook playback right first. Once you have that settled, then explore other formats if they interest you. But whatever you do, don't go after new formats at the expense of others. 
At the moment I'm pretty happy with my Redbook setup though the temptation to tweak/upgrade is always lurking. Running CDs (I have a pretty sizable collection of these) and the one or two DVD-A discs I have through the Bryston BDA1, enhanced by a Wyred4Sound reclocker, the sound is very pleasing.

 My first SACD player was a Sony DVP-NS500V, ca 2002, but I didn't buy it for that, I bought it to be our first DVD player. The SACD capability was sort of a bonus. As I recall the thing cost all of about $200. I still have it and it still works. Upgrading to the CA 751BD (2012) was an expedient to play Blu-Rays, and to be fair, as a universal disc player it's actually a very good machine. However, subsequent enhancements (outboard DAC and reclocker) have made an enormous difference to its audio performance. (It's video performance was excellent from the get-go, so no complaints there).

I've had SACDs in the collection for quite a few years now, and though what I hear is (to agree with the above post) perhaps a slight improvement over good old 44.1 (well, 96 now with my reclocker), I wonder if an average listener could hear the difference in a blind test? That's why I was so curious about hearing unconverted DSD.


" I've had SACDs in the collection for quite a few years now, and though what I hear is (to agree with the above post) perhaps a slight improvement over good old 44.1 (well, 96 now with my reclocker), I wonder if an average listener could hear the difference in a blind test? That's why I was so curious about hearing unconverted DSD."

Hopefully, we don't fall into the category of average listeners. But I think I should clarify the comments in my last post. I didn't mean to suggest that the difference between SACD and CD was very small. Its not. I think many people expected the difference to be like vinyl and CD. Some things a record can do fairly easily that it takes a very good CD player to equal. The difference SACD makes isn't that big, but the format is still clearly better than CD. If you were to get a universal player like the Ayre 5 U2, you can easily hear the differences between formats.

I flatter myself that I too am not an average listener, but really all (or at least the vast majority) of us who indulge in this hobby are not average listeners. Just an unsupported-by-any-facts opinion...
" I flatter myself that I too am not an average listener, but really all (or at least the vast majority) of us who indulge in this hobby are not average listeners. Just an unsupported-by-any-facts opinion..."

My advice would be to keep those "other types" away from your system. Every time they get near a pair of speakers, they just can't help themselves and start pushing in all the centers on the drivers. Its a travesty. I get nauseous every time I go into Best Buy and witness the damage on a mass scale. Maybe Trump will finally do something about the problem, but until then, lock your listening room door.