Does Improving PC PSU and Reducing PC EMI/RFI Improve SQ?

[Eric]

Hi Peter,
will the DAC be able to be connected to Firewire input, or would it still be necessary to use a Fireface400 or something similar?
And do you plan to run the DAC on battery power (like the TwinDAC+)?
Cheers,
Eric.

[Telstar]

Roy, thanks for the reminder on the mobo.  The GIGABYTE GA-EG45M-UD2H is a micro ATX mobo just like my current Asus - it's the same form factor and equivalent functionality. 

You have my same motherboard. Stongly recommended.

[earflappin]

Telstar, so you have the Gigabyte mobo in your music server?  Do you know how it compares sonically to the Asus mobo's?  I use the Asus now, but have the Gigabyte on order just on the hope it will further improve my sound quality which is already quite excellent.

Thanks.

[Telstar]

Kind of definitive : production starts in January at an easy one unit per day, just to get aquainted with things.

What? I spend one week away thanks to an annoying flu and i read this?
Gotta reserve those tickets for january.

[Telstar]

Telstar, so you have the Gigabyte mobo in your music server?  Do you know how it compares sonically to the Asus mobo's?  I use the Asus now, but have the Gigabyte on order just on the hope it will further improve my sound quality which is already quite excellent.

Thanks.

No, I dont know.
But It sounded better than the previous machine with an old Iwill server mainboard, which i can assure was realized extremely well.

[leifchristensen]

has anybody considered building a linear pc psu?
would be interesting?
or maybe put BG caps on the different lines from the sm psu to start with?
here´s a guide in Norwegian about the different connectors and their pin no´s and voltages in a std pc psu
the important tables should be easy to figure out even if they´re in Norwegian
http://www.hardware.no/artikler/stromforsyningens_kabler_og_kontakter/39078/utskrift

best
Leif
 

[PeterSt]

Hi Peter,
will the DAC be able to be connected to Firewire input, or would it still be necessary to use a Fireface400 or something similar?
And do you plan to run the DAC on battery power (like the TwinDAC+)?
Cheers,
Eric.

Hi Eric,

All will be completely self contained, so nothing is needed but a PC (or even no PC ). On that matter, all you may be buying now will be "obsolete" by then. I know, I'm a bit in the dark, but you will see.

No, SURE not any battery power. That just doesn't cut it.
Have you ever been to a concert ? (yes you have) ... ever experienced that bass of which you thought it couldn't be obtained in your listening room ?
... no you haven't.
But I sure have !! and it is not my amps doing it. It is the DAC in its current setup which is definitive ...

[earflappin]

Peter, sounds pretty exciting.  The power supply is a super critical element of a DAC - it has to be extremely fast to respond to the big dynamic range.  It makes sense to me that if you have found a better way of managing this in your DAC it will yield a nice improvement in SQ separate from the other aspects of your design.

Any update on your experimentations with different power supplies for the outboard PCI chassis?

[PeterSt]

David - No, not yet. Measuring stuff usually is for the weekends (somehow Saturday mornings always seem suitable).
Will let you know ! But when you think I may have forgotten it, call again !

[AUDIODIDAKT]

haha, (sneaky laughin to himself)

Dedicated Audio PC, no FUCKING way, without Dedicated PSU in PC (unit for whole pc, complete plan, hehe)
There is almost no info nor experience about this, anywere (and maybe no need for it anyway, it effects only "us")
But for us this is of ATMOST importance  , we should take the lead in this, as being frontenders.

Will give more info, how this came to me.

This matter should not be taken lightly, why, I "hear" my motherboard, even stumled over a Gigabyte flaw."
A "bad" pci slot, first hearing this, then found out about it on the internet. (learning thru hearing)
Will explain more this week.

Hope I don't interfere (overlap) with some of your current projects, Peter, you succeding very well with  leaving us in the dark. (maybe with PCI and soundcard stuff, but again I don't know)


Object take an overclockers board, tweak it, ONLY leaving the "core" we need and add (homegrown) PSU unit.
Depending on your needs, let say keep it around 400 euros. (just PSU plan and parts)

Would you....................... ?

Peter, you spend it on just an PCI extender, do you give me some room proving this, not knowing the outcome of it.
Will not accept current common solutions, this carpenter will build his own, I know for sure.
Its not that hard doing a beter job ,doh

yesterday spending my whole day with my motherboard in my hands, its just all so wrong.
Things are complex the way the are right know, just start peeling.
What we already suspect, is the case here, doubt everything.

Roy

[AUDIODIDAKT]

Maybe there would be even some Phasure (test cases mostly start with an x, referring to the name thing) energy settings for unattended mode maybe.
Would we want this, most energy settings can be software controlled, so the option is there.
Could this be usefull for us, you have the answer, knowing the behavior of xx during unattended, could things go more quiet.
when determined lowest possible energy settings during playback.
Just to keep it alive and perform unattended mode.
So could we improve the standard energy behavior of Bill to hour own needs,
I know you doing some work on getting full control over "going to sleep" with HDD's

But maybe its just nothing, I dunno


 

kinda dynamic energy saver meets software overclocking (underclocking for us)

But than again, it will only use more energy during playback, and it won't work to hour advantage

[AUDIODIDAKT]

But what if,

What if you don't actually play the files realtime.
Just sending them over to your NOS1 (nice buffer), and then commence playback from there.
pc is just server (or should say HDD's), so no interference what so ever. (no I2s, no clock, no shielding (disconnect after recieving)
Feeding the baby, and it will keep playing. (think streaming)
So we have CD-player again. (who pulled them apart anyway, dac and drive and this never worked out)
As in Real Unattended, can I be wrong (with embedded settings ofcourse)

Key here is embedded settings, or should I say pre-handle script.
DSP, does no sound that strange afterall, putting output data from RAM in script, commanding DAC to handle from here on

aha, hehe

Nice

You were too quite on some subjects, why would he not be interessed, I just wandered (then is hits me)
I get it, just plug in your big XXL USB stick in DAC (as in a rig of 10TB HDD's as in pci extender).
Pc will be total commander, nothing more nothing less, so we have our pc back too.
No procceses just some commands will be sended when needed.
And have means to remote control to whole bunch

Thnx for making my PC a rather expensive means of enjoying my cover art
And you were planning to say this when.......? (but maybe you already did, but just as not listening)
Now I can make sense out of it all
Just walking the paths.

[PeterSt]

Hey spammer !

In half of it all I see nice ideas, 70% can't work, 5% may be implementable, and 100% I don't understand.

Actually the setup of the DAC is so strange that I really must sit back and think about some of your options. But this is more in the line of "but isn't it working like that already then ?".
It is all a bit of the world upside down, and from that perspective all must be reconsidered.

Peter, you spend it on just an PCI extender, do you give me some room proving this, not knowing the outcome of it.

This must be part of the 100% I mentioned. Do you want me to withhold you from the results until you tested it all yourself ?
I'll be comparing and testing tomorrow. So you'll always have 32 hours left, at least.

Would we want this, most energy settings can be software controlled, so the option is there.

Part of the 5% here.
I have been staring at this for several minutes, and I actually start to wonder whether the Phasure NOS1 solution can ever be bothered by this. I guess so, but maybe not.
Maybe if I hang upside down for a couple of hours I'll get it.

Just sending them over to your NOS1 (nice buffer), and then commence playback from there.

Part of the 70%.
Ok ok, since a few important parts to let this work have been *removed*. Haha ...

So we have CD-player again.

... while this is true already.

[Gerard]

Peter,

It's way but is it possible to give the PHASURE NOS1 a aluminium or a black front?? I like aluminium but maybe a possibility to choose. 

 

[AUDIODIDAKT]

Hey,

Quote
Peter, you spend it on just an PCI extender, do you give me some room proving this, not knowing the outcome of it.

This must be part of the 100% I mentioned. Do you want me to withhold you from the results until you tested it all yourself ?
I'll be comparing and testing tomorrow. So you'll always have 32 hours left, at least.

I can do just the same here (shunts black gates and all), I have all materials here, BUT

How to give the Juli@ its own PSU, can I just disconnect the lines from motherboard and then connect my own PSU on soundcard ???
what are the powerlines of PCI slot or Juli@ anyway.
I think they even maybe holes for it in the soundcard to connect a psu 
Hard to find datasheets on the ESI Juli@ and the GA-EP45-EXTREME

Anyone??

Would love to share my findings ofcourse.

This is NOT my pic, but can make some of these changes too. (even splitting the card of its analog part made SQ change)