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USB to SPDIF converters shoot-out : EMU 0404 USB vs. Musiland Monitor 01 USD vs. Teralink-x vs. M2Tech hiFace - Page 31  

post #451 of 1712
Thread Starter 
Quote:
Originally Posted by Kooka View Post
Everybody uses Teralink with usb power? No battery, nobody?
It seems to me that regal uses his Teralink with a linear power supply and that he noticed an improvement using it.

As for me, I tried the Teralink with the notebook running from battery which I guess is the same (or even superior) than just running the teralink with an external power supply and it provides a small improvement. By the way, using a better usb cable (wireworld ultraviolet) or tehe USB asio driver provides a bigger imporvement than AC wallwart vs battery power.
So yes, the Teralink should improve with battery power. But even with battery + ploytec usb asio driver + high quality usb cable it is still not on the same level as the m2tech hiface (in my setup) while the cost of the added components is higher.
post #452 of 1712
slim.a could you recomend some good USB cables please, like the CryoParts USB, Wireworld Ultraviolet etc.
post #453 of 1712
Thread Starter 
Quote:
Originally Posted by rosgr63 View Post
slim.a could you recomend some good USB cables please, like the CryoParts USB, Wireworld Ultraviolet etc.
I have tried some usb cables (belkin gold, real cable, monster) and they all provided some kind of improvement.
When I tried the wireworld ultraviolet it was much better than all the others, so I guess it is a good value cable (even considering the price difference). However, I never tried the ultraviolet against the Cryoparts, Kimber or other high end usb cables, so I wouldn't know how they compare to each other.
post #454 of 1712
Quote:
Originally Posted by slim.a View Post
It seems to me that regal uses his Teralink with a linear power supply and that he noticed an improvement using it.

As for me, I tried the Teralink with the notebook running from battery which I guess is the same (or even superior) than just running the teralink with an external power supply and it provides a small improvement. By the way, using a better usb cable (wireworld ultraviolet) or tehe USB asio driver provides a bigger imporvement than AC wallwart vs battery power.
So yes, the Teralink should improve with battery power. But even with battery + ploytec usb asio driver + high quality usb cable it is still not on the same level as the m2tech hiface (in my setup) while the cost of the added components is higher.
Got it, thanks. But, still, I am intrigued by the Teralink 2... even for adding one more item to the group... and even because I have a good Monster usb cable, and still I'm a little skeptical about the real benefits of these cables compared to cheaper ones (if not lenght related)
post #455 of 1712
Reading fast through this topic seems like to me that the Emu-0404usb isn't that good after all?

I have an 0404usb for a few years now and my opinion is that this soundcard is not bad. I use it for listening headphone sr225 and digital coax passed to my receiver panasonic sa-xr700.

But now i think that an upgrade is maybe a good thing to do?

btw:
I'm from the Netherlands... Can it be that jitter and other things are different with the 230V power?
post #456 of 1712
Thread Starter 
Quote:
Originally Posted by Ejorne View Post
Reading fast through this topic seems like to me that the Emu-0404usb isn't that good after all?

I have an 0404usb for a few years now and my opinion is that this soundcard is not bad. I use it for listening headphone sr225 and digital coax passed to my receiver panasonic sa-xr700.

But now i think that an upgrade is maybe a good thing to do?

btw:
I'm from the Netherlands... Can it be that jitter and other things are different with the 230V power?
If you feel satisfied with your system, you shouldn't upgrade your equipment But if you really have to, you might want to start with the headamp.

As for 230v power, I don't think it affects audio. By the way, I live in France and the standard power is also 230v.
post #457 of 1712
Quote:
Originally Posted by Kooka View Post
Everybody uses Teralink with usb power? No battery, nobody?
Yes, I use it with a battery, i wrote this on page 11, perhaps you did not read the whole thread?

Yes the battery gives the best sound in my opinion, but i only use it occasionally as charging it is tiresome.

Slim, no, using a laptop with a battery is not the same result as going straight into the teralink x with a battery, as you still get noisy computer power.

Also, for users of plug and play USB to spdif converters, try the polytec USB driver it gives surprisingly good results, I found it to improve detail quite considerably with my teralink x, get the demo from the Poltytec website

ENJOY!
post #458 of 1712
Thread Starter 
Quote:
Originally Posted by erin View Post
Yes, I use it with a battery, i wrote this on page 11, perhaps you did not read the whole thread?

Yes the battery gives the best sound in my opinion, but i only use it occasionally as charging it is tiresome.

Slim, no, using a laptop with a battery is not the same result as going straight into the teralink x with a battery, as you still get noisy computer power.

Also, for users of plug and play USB to spdif converters, try this driver it gives surprisingly good results, I found it to improve detail quite considerably with my teralink x:

Ploytec USB ASIO (USB 2 Audio) 2.8.15 (For WinXP & WinVista).rar - File Shared from Box.net - Free Online File Storage

ENJOY!
erin,
have you compared the following (A vs. B) :
A/ Laptop running battery power + Teralink without external power
B/ Laptop running AC + Teralink with external battery ?

Are you basing your comments on theory or real A/B experience with your teralink-X ?
Even when using an external power supply, the Teralink is still connected to the computer power supply as I see nowhere any mention of galvanic isolation.
However, when unplugging the computer from the mains power supply, it reverts to its battery power supply and the noise is minimized.
I have tried this with many usb to spdif converters (and one of the converters, the emu 0404 usb, uses an external power supply) and they all benefit from running the computer from battery. The improvement when running the emu 0404 usb from battery powered computer was greater than switching the power supply or using a power filter or straight from the wall receptacle.
Ideally, one would use a battery powered laptop with an external battery power

But since those differences were rather small, I can understand that in your case you found out that an external battery power for your Teralink-x yields better results.


As for the ploytec ASIO driver, I totally agree with you, it gives very good results with the Teralink-X. It is cleaner sounding and more neutral than the stock windows drivers.
post #459 of 1712
Quote:
Originally Posted by slim.a View Post
erin,
have you compared the following (A vs. B) :
A/ Laptop running battery power + Teralink without external power
B/ Laptop running AC + Teralink with external battery ?

Are you basing your comments on theory or real A/B experience with your teralink-X ?
.
Hi Slim,
I use a desktop PC, I have tried running the Teralink off usb power and then switching to external power. I can notice a big diffence here.

Yes you are right there is no galvanic isolation, I was commenting on two things.
1) the person enquiring abourt running the teralink off battery, and
2) Your response, to that question, where I was just pointing out the that running off usb power is not the same as running the teralink directly off the battery.

You see, the 5V rail in the computer has many other ICs operating off this same rail, so there will be all manner of switching noise on this rail, and also on the ground rail. How bad this is exactly, i have not measured, but I suppose it would be safe to assume that the battery will have much less of this switching noise than the laptop.

Also, SMPS generates quite a large amount of EMI, so although the DC output of these power supplies might be quite smooth and stable, the proximity of the power supply to your computer and DAC may be affected by this EMI.

The external wall wart SMPS does not have metal shielding around it whereas the Desktop PC power supply is shielded by a metal case and then grounded. It would vary from power supply to power supply, but it would be resonable to assume that shielded is better than non-shielded.

Anyone else want to add thier oppinion, or some facts??
post #460 of 1712
Try the Terra-LinX with a linear regulated power supply, it is simply amazing. I think it is a huge advantage over the Hiface. Go to the tent labs site and learn how bad SMPS can be for clocks/jitter, they are highly regarded IMO as the experts on Jitter. They go to great lengths with special low noise power supplies to feed their clocks. I'm temped to build a Jung super reg or shunt reg to feed the TerraLinX.
post #461 of 1712
post #462 of 1712
Hey Regal,
Which usb driver are you using?
have you tried the ploytec driver?
post #463 of 1712
Isn't that driver illegal to use without purchase?
post #464 of 1712
Quote:
Originally Posted by tosehee View Post
Isn't that driver illegal to use without purchase?
You can download the demo from the ploytec website if you prefer.
post #465 of 1712
slim.a is any of the above galvanicaly isolated?
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Head-Fi.org › Forums › Equipment Forums › Dedicated Source Components › USB to SPDIF converters shoot-out : EMU 0404 USB vs. Musiland Monitor 01 USD vs. Teralink-x vs. M2Tech hiFace