Review and Measurements of E1DA 9038S BAL Portable DAC & Amp

[Dront]

Hello! Are therу 4 modes of operation on 9038D as it was on 9038S? And how to shitch this modes on 9038D. Is there any fimrare updates, and how to know when a new update arrives? ))

 

[IVX]

Dront, there is no HW modes, we prepared Tweak9038 Android app for comprehensive control.

 

[cqtek]

Hello @IVX.

Thank you very much for your clarifications.
The image with a sinusoidal with 1% THD is very eloquent and highly useful. As you can see, my current oscilloscope does not have the resolution of your application and my sound card does not support so much power, getting saturated much sooner. I would like to have some other alternative to use with REW, but I have to test if any of my DACs can act as a line input capable of being used with REW.
Going back to #9030D, the first thing I want to tell you is that the resistors used are 33 Ohms (3W), in the last posted image you can see its measure with the multimeter. I put it back so you can see it.
Now I hang the measurements made with No Load, both with the oscilloscope, and with the multimeter. For the multimeter measurement, I have used pure sine waves from 1kHz to 100Hz, because I know that the multimeter does not measure in alternate, beyond this figure. The measurement taken is stable in this range from 100Hz to 1kHz.
You can see that the signal is clearly clean.
Another important fact is that I use Audacity to create the pure sinusoidal tones of amplitude 1 in mono, 96kHz FLAC.

Finally, I cannot measure the USB output of my PC, but having tested it on USB 2.0 ports, as in USB 3.0 without differences, I think you can understand that the voltage is 5V.

 

[IVX]

cqtek
I also use Audacity, it is fine. I didn't mention another factor that limits the power of OPA1622, it is the temperature of die. In fact, a few seconds of sine enough to make it hot and 1622 will reduce the current limit, however, typical crest factor =3 music will not heat the die significantly.

 

[Veri]

Ivan sir - There was a plan for PowerDAC v2.1 right, when an adapter can accommodate 3.5 mm HP cable. When it is available, should we buy a new PDv2, or a s/w update on existing PDv2 will work?

You're gonna need the new revision. @IVX

 

[IVX]

and I have it(HW) for almost a year but still waiting for apps.

 

[spirosgon]

Hi to all,

been watching this excellent forum, for the last year or so.

Registered to ask somenthing simple : I 'm from Greece and a Chinese partner and friend that knows how much I'm into the headfi, send me an E1DA 9038S GEN3 as a Christmass gift. I 'm happy to just receive it and I 'm looking forward to return home tonight and test it with my HiFiMan Devas... already got the 3,5=>2,5 balanced cable.

My question is that I have also received a little circuit board, as per the photo. Don't have a clue, what this one could be.

Could you help ?

 

[Veri]

Hi to all,

been watching this excellent forum, for the last year or so.

Registered to ask somenthing simple : I 'm from Greece and a Chinese partner and friend that knows how much I'm into the headfi, send me an E1DA 9038S GEN3 as a Christmass gift. I 'm happy to just receive it and I 'm looking forward to return home tonight and test it with my HiFiMan Devas... already got the 3,5=>2,5 balanced cable.

My question is that I have also received a little circuit board, as per the photo. Don't have a clue, what this one could be.

Could you help ?

It is just a little Easter egg gift

 

[spirosgon]

It is just a little Easter egg gift

Thnx my dear !

But, what could I do with this gift ? Is it a replacement for the board inside the unit, in case the latter fails ?

 

[Veri]

Thnx my dear !

But, what could I do with this gift ? Is it a replacement for the board inside the unit, in case the latter fails ?

You can read a bit about it here, from earlier in the thread:
https://www.audiosciencereview.com/...a-9038s-bal-portable-dac-amp.8424/post-548111

 

[spirosgon]

You can read a bit about it here, from earlier in the thread:
https://www.audiosciencereview.com/...a-9038s-bal-portable-dac-amp.8424/post-548111

Thnx again !!!

Wish the best for the upcoming holidays.

And quick return to 'normality'.

 

[mkawa]

@IVX what's your preferred vendor for the 9038d?

also, does anyone have a source for a 2-3" c-c braided cable? the old cable that came with the 9038s was way too stiff for me

 

[IVX]

mkawa, well, the biggest one reseller is Linsoul, they buying up to 100pcs per once.

 

[McRyan]

Hi, is that possible? PC (USB) -> 9038SG3 / 9038D -> 2 bi-amplified near-field monitors (XLR)

 

[IVX]

McRyan, 9038D is a normal DAC with a high-current ability to drive headphones.

 

[McRyan]

McRyan, 9038D is a normal DAC with a high-current ability to drive headphones.

Are they any drawbacks if using it with speakers? Could I also use the 9038SG3 with an 2,5mm to XLR adapter?

 

[IVX]

McRyan, check this out pls https://e1dashz.wixsite.com/index/faq

 

[rdo]

@IVX Is it possible to PEQ the #9038D with the Tweak application or any other method?
I've begin to appreciate equalizers thanks to the Amir headpone reviews

 

[XeCutor]

I think I'm right in saying that the 9038D is just a dac and headphone amplifier. Depending on what you hook it up to you can apply EQ before the signal reaches the 9038. I use EqualizerAPO (Peace interface addon recommended) for Windows and Wavelet for Android, both work fine and I'm using the 9038D with EqualizerAPO as I write this. For other platforms others will have to chime in with options, these are the only I use for audio.

 

[rdo]

I think I'm right in saying that the 9038D is just a dac and headphone amplifier. Depending on what you hook it up to you can apply EQ before the signal reaches the 9038. I use EqualizerAPO (Peace interface addon recommended) for Windows and Wavelet for Android, both work fine and I'm using the 9038D with EqualizerAPO as I write this. For other platforms others will have to chime in with options, these are the only I use for audio.

Yes, i also use EqualizerAPO and Wavelet, but i think it would be much more convenient and with better sound quality to have the equalizer applied directly by the DAC.