Jump to content
sligolad

ISO Regen performance Improvement Cheap!

Recommended Posts

@jabbr

Please try the Supra DAC as a dual DC cable. PM me and I will

send you a cable to you free of charge. I can even put it together for you if needed. I am just curious what you think about it?


Auralic Aries Mini, Ariston RD40 & Mytek Brooklyn DAC system with Fostex TH900 & Gibson Les Paul 8 reference monitors.                           

Learn from the mistakes of others. You can never live long enough to do them all yourself. Graucho Marx

Share this post


Link to post
Share on other sites
7 hours ago, marce said:

So provide some explanation of how a DC cable can have such an effect on the sound quality.... an effect that I would have to use a DSP to mimic.

 

7 hours ago, marce said:

So provide some explanation of how a DC cable can have such an effect on the sound quality.... an effect that I would have to use a DSP to mimic.

Marc

 Due to time differences, you will now have seen some reports and links from others to discussions in this area.

 BTW, are you set up to receive PMs ?

 I have sent you a couple recently with no response.

 

Alex


How a Digital Audio file sounds, or a Digital Video file looks, is governed to a large extent by the Power Supply area. All that Identical Checksums gives is the possibility of REGENERATING the file to close to that of the original file.

PROFILE UPDATED 28-06-2020

Share this post


Link to post
Share on other sites
6 hours ago, marce said:

funnily when I stopped trusting my ears my system improved....

Could not let this go...gave me a chuckle when i seen it ?


Audio PC - Gigabyte H97M-D3H, i7 at 800Mhz, RAM at 800Mhz & PPA OCXO Mobo, Teradak ATX Linear for 20 pin ATX on Mobo, Paul Hynes SR7EHD 12v, 5v & 5v supply on Mobo, Stammheim 12x LT3045's for 1.3v to RAM direct supply, JCat V2 USB Card, WTFPlay Linux Audiophile Player control by MELE F10, Startech LEX to REX on 12v Paul Hynes with 2x SLC cards and out by POE to ISO/Regen, PPA Red USB Cable, Lampizator Big7, Nige design Lifepo4 powered amp, Raidho C1s.

Share this post


Link to post
Share on other sites
8 hours ago, genjamon said:

A good biking friend of mine is a laser physicist who works with very ultra fast lasers, and their ability to test the speed of these lasers and their other characteristics depends upon low noise sensors.  He laughs at me when I talk about the noise specs of our audio equipment, since in his carefully controlled lab environment he and his peers can't get anywhere close to 1uV noise threshold - he says the wiring picks up WAY more noise than that.  

 

What exactly is causing which effects - now that's a good question.  And many ideas have been posited on this thread.  We won't be able to do anything more than this silly game of trial and error unless someone with skill and tools actually properly tests systematically for the effects of geometry, shielding, dielectric, etc on rejection and/or filtration of electrical interference.

 

If you want to get audio replay working at the best levels, then you do have to worry about all this "silliness". The inconvenient truth is that the ear are quite excellent at picking up anomalies that are at the "edge of audibility", which are caused by lack of electrical 'cleanness' - and these shortcomings of integrity can be, yes, everywhere. The standard build of equipment gear is just not good enough, irrespective of cost - unless the designers spent their efforts on improving this integrity instead of adding bling, and exotic parts.

 

And, it makes all the difference between conventional stereo sound, and competent recreations of musical events, if one decides to sort all this out. The reasons, issues, problems are all very straighforward things, no mysteries, all well understood in activities where people absolutely need to get high resolution happening - it's just that people have great faith that sloppiness of implementation in audio doesn't matter, so long as some measurements look good - well, it just ain't so ... the fussier one is, the more the subjective SQ benefits.


Frank

 

http://artofaudioconjuring.blogspot.com/

 

 

Over and out.

.

 

Share this post


Link to post
Share on other sites
6 hours ago, lmitche said:

I've done it several times now. I have to drill out the metal plug sleeve to 9mm. Shrink wrap makes the finished product acceptable.

 Hi Larry

 For reliability reasons, I fitted 3pin Mini XLR plugs and sockets to the PSU and cable powering my USB Regen.

 I had to do virtually the same as you have done to take the thicker 7.5A mains cable offcuts.

 I kept having trouble with unreliable DC 5.5 x 2.1mm plugs and sockets .

 

Regards

Alex


How a Digital Audio file sounds, or a Digital Video file looks, is governed to a large extent by the Power Supply area. All that Identical Checksums gives is the possibility of REGENERATING the file to close to that of the original file.

PROFILE UPDATED 28-06-2020

Share this post


Link to post
Share on other sites
10 hours ago, marce said:

So provide some explanation of how a DC cable can have such an effect on the sound quality.... an effect that I would have to use a DSP to mimic.

By having such a screwed-up system that just touching or changing anything, changes the sound.

Share this post


Link to post
Share on other sites
28 minutes ago, Speedskater said:

By having such a screwed-up system that just touching or changing anything, changes the sound.

Troll

Share this post


Link to post
Share on other sites
19 hours ago, genjamon said:

These LT3042/45 devices are so low noise that now the noise being picked up in the cabling connecting to the load is the dominant feature in the noise profile, thus making all of these cable changes quite audible

I suspect this is correct. Here is another data point.

 

My recently acquired lps1.2 replaced a lps1 used in my usb chain. In this position, the lps-1.2 feeds a y-cable to two chains of dual lt3045s (7 to 6 to 5 volts), where one output feeds an ISO Regen and the other feeds a vbus injector into an IFI black label.  The DAC can be started in two power modes, fed from it's internal battery or fed from vbus. Until the lps-1.2 arrived, the DAC always sounded better powered from it's battery. Now things have changed.

 

Fed from the vbus, imaging and sound stage has not changed, but the noise floor seems noticeably lower with a kind of shimmer, (almost like shade) around instruments gone. The result is a crystal clear point source of sound in a quieter sound stage.

 

While I am not sure I always like the vbus style sound, the difference is immediate and striking and for at least some material, especially classical, it is an improvement. Happily it is trivial to switch modes.

 

So I concur with Genjamons hypothesis that we are dealing with such low noise levels, that minor changes in shielding, cabling and regulation make an audible difference. It is as though we are approaching or have moved past some tipping point.


nuckleheadaudio.com

Share this post


Link to post
Share on other sites
12 hours ago, RamDawg said:

Troll

Any product that is sensitive to the DC supply cord is a poorly designed product. Industrial audio Consultant Dick Pierce pointed that out two decades ago, about expensive hi-fi digital products that were sensitive to digital interconnect cables.

Share this post


Link to post
Share on other sites
11 hours ago, fas42 said:

No, not screwed up ... just much closer to optimum, which means every deviation from 'correctness' is more obvious ..

Nope, you are writing about a product that has a poorly designed power supply.

Share this post


Link to post
Share on other sites
1 hour ago, Speedskater said:

Any product that is sensitive to the DC supply cord is a poorly designed product. Industrial audio Consultant Dick Pierce pointed that out two decades ago, about expensive hi-fi digital products that were sensitive to digital interconnect cables.

Don't you think a product should be evaluated against its design goals? I am sure you can see/hear why an industrial power supply might have different ones from an audiophile product for a home environment. I sure do not want a military/industrial specification applied to any of my super sounding audio products -not only unnecessary but would add silly cost and likely sound worse- a self defeating exercise?

Share this post


Link to post
Share on other sites
43 minutes ago, jabbr said:

As long as the cables are $10 this is harmless. 

 

The concern is that audiophilia nervosa will result in $1000 dc power cables. 

That's right, it's all about money and power.


nuckleheadaudio.com

Share this post


Link to post
Share on other sites

Just noticed Ghent has added new wire to their portfolio of DC cables:

 

No Cat7 or Cat8 yet

 

Just received my Supra and uGreen, but haven't tested yet.

  •  

Bob

 

I7-3770/Win10/Fidelizer v8.3Pro > Roon > HQ Player to DSD 256 >  HDPlex 100w/Two LT-3045's w/Kemet/DIY SSG360 Gotham 4/1 Ultra/Sonore microRendu v1.3 > LPS-1/DIY SSG360 Gotham 4/1 Ultra/LT3045 w/Kemet/ISO Regen > LPS1.2/DIY SSG360 Gotham 4/1 Ultra/Sonore ultraDigital > i2s  > W4S DAC2 DSDse upgraded to v2 w/ ES9038Pro > Tellurium Q Ultra Black XLR >  Nord One Up NCore 500 monoblocks REV D w/SI990Enh op amps > Tellurium Q Black II > Martin Logan Impression 11A w/ dual Rythmik E15HP2 subs.

 

 

Share this post


Link to post
Share on other sites
5 hours ago, lmitche said:

That's right, it's all about money and power.

Not for me, I am personally concerned with understanding what affects audio quality/SQ, and when reasonable physical explanations are lacking, the fact that higher cortical function is a powerful modulator of sensation, remains.


Custom room treatments for headphone users.

Share this post


Link to post
Share on other sites
7 minutes ago, jabbr said:

Not for me, I am personally concerned with understanding what affects audio quality/SQ, and when reasonable physical explanations are lacking, the fact that higher cortical function is a powerful modulator of sensation, remains.

 

"when reasonable physical explanations are lacking, the fact that higher cortical function is a powerful modulator of sensation, remains."

I think we are dealing with two facts in that proposed scenario:

1) Physical explanations are lacking

2) cortical function is a powerful modulator of sensation

The conclusions drawn from those premises seem to be wildly different depending on one's belief system.


Sound Minds Mind Sound

 

 

Share this post


Link to post
Share on other sites
4 minutes ago, jabbr said:

Not for me, I am personally concerned with understanding what affects audio quality/SQ, and when reasonable physical explanations are lacking, the fact that higher cortical function is a powerful modulator of sensation, remains.

This troll has perched in our thread and aims to continue to make this his dumping ground.  He has had at least 1 offer to receive for free a DIY ethernet DC cable to try between his LPS 1.2 and ISO Regen (AC confirmed recent purchase).  Even the acceptance of such offer would diminish his troll cred for he is not receiving thread notifications because he is interested in our experiments.  Until he experiments himself and reports back 1st hand findings, his posts are irrelevant and complete ingorance. Please start your own thread dude. 

Share this post


Link to post
Share on other sites
5 minutes ago, Audiophile Neuroscience said:

 

"when reasonable physical explanations are lacking, the fact that higher cortical function is a powerful modulator of sensation, remains."

I think we are dealing with two facts in that proposed scenario:

1) Physical explanations are lacking

2) cortical function is a powerful modulator of sensation

The conclusions drawn from those premises seem to be wildly different depending on one's belief system.

Troll

Share this post


Link to post
Share on other sites
15 minutes ago, RamDawg said:

Troll

 

Funny, I didn't even make my stance known, merely pointed out there are different perspectives possible.

 

Edit- Oh, I get it now, I just browsed up through the thread, everybody is a troll for you if they disagree with you, even if you misconstrue what they are saying.


Sound Minds Mind Sound

 

 

Share this post


Link to post
Share on other sites
11 hours ago, Speedskater said:

Nope, you are writing about a product that has a poorly designed power supply.

 

A very high percentage of power amplifiers have poor power supplies - this is why the sound deteriorates when higher sound levels are asked for. All sorts of solutions are possible; the 'easiest' one is is to to have multiple amps, one for each driver - the supplies are no better, but the load is divided.


Frank

 

http://artofaudioconjuring.blogspot.com/

 

 

Over and out.

.

 

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



×
×
  • Create New...