John Curl's Blowtorch preamplifier part II

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OK.... no one is really interested in what it takes to be uber high-end audio.... Best in every possible way.
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A long while back.... someone laughed at the idea of ever increasing sample rates and noted that if this continued the waveform starts to look more and more like an analog signal. Implying the signal is beginning to look like the analog input ... maybe just record in analog, in the first place.
(disregarding the convenience of the format, storage etc). .

Who here has taken DSD (USB or I2) and LP filtered it and listened... no DAC?

I hear it sounds really good that way.


THx-RNMarsh

Maybe, I haven't heard any DSD I liked. I believe the Lampizator is "DACless" that I heard.
 
All quibbling aside, trying a DSD stream without an normal DAC, just low pass filtering the stream, can be fun. That is what that whole No DAC thread is about. It's not too hard to try it and find out of you like what you hear.

Spectrum of DSD, though I think it's one of newer rates.
 

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Here's another list, but still not those two words: Describing Sound A Glossary - Head-Fi.org Community
Doesn't surprise me that those two words are not there. I had to apply them to what I was hearing. I found that there was little talk of this in reviews and few seem to be aware of it in any tangible way. Once a poster on another forum used the the word "there" (like the "there" factor) to try to describe it. I have spent 7 years trying to get a handle on this.
 
That's OK, neither does he.

You got it. There was no question being asked for an answer. Sometimes, it's just my thinking out loud and looking for a response that can go just about anywhere.

In the case of DSD vs CD... if BenchMark's EE thinks DSD is probebly the better of the two.... lets see what, why and where for. And, i want to hear DSD's best. Has enough effort been put into developing it to a high level of quality/performance? Or was it cut short by marketing forces? If BenchMark thinks DSD has the technical edge, who can prove he is wrong? I'm listening.

Which technology won in the market place is Not an indicator that its because of technical superiority. Rather, in this case marketing forces and finances may have caused the use of certain technologies we use mostly.



-RNM
 
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CD refers to Redbook 44.1/16 bit PCM. Thre are plenty of valid arguments that better, as in higher bit rate/more bits is not audible but anything that claims "high res" is more of something than Redbook. I don't know if better than CD means a whole lot today.

Real state of the art is 32 channels at 1,536 KHz/24bit HDMI 2.0. No hardware exists to make use of this. SO GET CRACKING! There's audiophiles deprived of the best possible audio.

I think your Auraliti can play those DSD files.
 
Spectrum of DSD, though I think it's one of newer rates.
Thanks Scott.
I had actually considered doing a DSD DAC-less thingy, but have too many speakers to build.

If I did, I'd just take the stream after it's broken into left and right and run it thru a inverter and buffer so as to have a differential output. Run that differential signal into one of my nice Cinemag or Onetics transformers and there you go! Just because I like transformer coupled circuits. The transformer acts as LPF and rejects any common noise.

Never will get around to doing it, tho.
 
If BenchMark thinks DSD has the technical edge, who can prove he is wrong? I'm listening.

Again did you read your own link, they think it's a compromised format? You didn't read it did you?

DSD absolutely fails to deliver a "direct" path between the A/D and the D/A. Any such claims are marketing spin. DSD offers no advantages over a conventional 24-bit 96 kHz system, and it fails to leverage the massively parallel architecture of modern converters.
 
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It's like explaining to someone who is 'tone deaf' what audio quality is. '-)

Maybe you could say, "I don't think there is established terminology to describe it, it's usually something people come to understand by hearing it for themselves," or something like that, if that is in fact the case.

If it's something that comes up often, you will have a few chances to figure out what type of explanation seems to work best to say as much as you honestly know how to describe.
 
Real state of the art is 32 channels at 1,536 KHz/24bit HDMI 2.0. No hardware exists to make use of this. SO GET CRACKING! There's audiophiles deprived of the best possible audio.

I think your Auraliti can play those DSD files.

Who is working on the HDMI 2.0 hardware for audio??


Can you find out if your Auraliti can play DSD and let me/us know?

This looks interesting to me. What do you think?


DSD player.jpg


Are there others doing similar?



THx-RNMarsh
 
The circuitry in the Playback Designs is very similar. However it can convert PCM to DSD and it handles any other DSD details very well.

The Auraliti handles DSD over DOP and the latest firmware handles direct DSD I think. I don't know about 2X or 4X but I'm checking. To be honest DSD was just another nuisance during the project but customers insisted so graft some more patches and quirks into the driver code, hoping it doesn't break everything else.
 
Again did you read your own link, they think it's a compromised format? You didn't read it did you?

yes I did. I just dont believe everything I read from mfr. it came across to me as a bit of justifying the DAC chip used and its workings.

Then he says this -- "If the choice is between a CD and a DSD version, the DSD version may offer some improvement." But, I do wonder if 24/96+ HD master downloads has eclipsed both.

Which brings me back to what is the better and best way to do DSD? The unit of #88775 above might be there for DSD direct masters downloads.



THx-RNMarsh
 
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The circuitry in the Playback Designs is very similar. However it can convert PCM to DSD and it handles any other DSD details very well.

The Auraliti handles DSD over DOP and the latest firmware handles direct DSD I think. I don't know about 2X or 4X but I'm checking. To be honest DSD was just another nuisance during the project but customers insisted so graft some more patches and quirks into the driver code, hoping it doesn't break everything else.

How do I get the firmware update?


-RM
 
Next week I go to my Asia headquarters also known as my condo in Bangkok. Bringing my two teenage girls and their mother to Bangkok for R&R and shopping with my Lisa. No father, me nor brother... all ladies event. Should be fun for all. Then go to factory and check/listen to the new high SR ultra low distortion power CFA. I shipped my QUAD ESL 989 speakers over there to use. Then its off to other places and things to do... meeting and travel around the region. Will be following this in the evenings when I have nothing better to do. 🙂

-Richard
 
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Next week I go to my Asia headquarters also known as my condo in Bangkok. Bringing my two teenage girls and their mother to Bangkok for R&R and shopping with my Lisa. No father, me nor brother... all ladies event. Should be fun for all. Then go to factory and check/listen to the new high SR ultra low distortion power CFA. I shipped my QUAD ESL 989 speakers over there to use. Then its off to other places and things to do... meeting and travel around the region. Will be following this in the evenings when I have nothing better to do. 🙂

-Richard

Pics, we need pics.
 
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