Review and Measurements of Geshelli ENOG2 Pro DAC

[maxxevv]

Nowadays most PC have Toslink output, so the lack of usb is not that big problem.
Can we get some Toslink measurement?

Seriously ? I have only come across 1 in the past few years. Maybe I have looking at the wrong stuff?
Which particular ones are you talking about ?

 

[amirm]

Can we get some Toslink measurement?

The dashboard did not change. However, jitter and noise are higher with Toslink:

Probably not an audible difference though.

 

[amirm]

@amirm, if you still have the unit would it be possible that you measure the output impedance of the RCA and XLR outputs, please?

Sure. Here is both at 1 kHz:

RCA = 47 ohm
XLR = 104 ohm

 

[Voo]

would measurements change with dac's different output voltages? I found I dont like the highest output voltage on dac with my thxaaa789 amp. I use middle...but I like high output with loxjie p20.

 

[amirm]

would measurements change with dac's different output voltages? I found I dont like the highest output voltage on dac with my thxaaa789 amp. I use middle...but I like high output with loxjie p20.

Yes. Here is the SINAD with balanced:

Full output (4.3 volts) = 107
Next step (0.9 volt) = 96
Last step (0.29 volt) = 86

I suspect this a digital attenuation so the noise floor does not go down (appreciably) when you lower the output level.

 

[Voo]

thank you very much...I have enog2 pro dac using xlr...I take it by these measurements we should use rca instead because it performs better...disappointing

 

[amirm]

thank you very much...I have enog2 pro dac using xlr...I take it by these measurements we should use rca instead because it performs better...disappointing

If you ever suffer from ground loops, balanced can be a godsend. And the difference may not be audible between the two.

 

[NDRQ]

Seriously ? I have only come across 1 in the past few years. Maybe I have looking at the wrong stuff?
Which particular ones are you talking about ?

I am using this one, but as i saw almost every mid tier or better mobos having toslink output.

amirm: Thanks for the toslink measurement.

 

[Roen]

If you ever suffer from ground loops, balanced can be a godsend. And the difference may not be audible between the two.

There's always the RCA to XLR cable as a partial mitigation if the RCA output performs better.

 

[graz_lag]

There's always the RCA to XLR cable as a partial mitigation if the RCA output performs better.

I do not think the RCA to XLR adapter covers you from the ground loop ..., which might be here the only reason for which one upgrades the outgoing from the RCAs to XLRs ...

 

[Roen]

I do not think the RCA to XLR adapter covers you from the ground loop ..., which might be here the only reason for which one upgrade the outgoing from the RCAs to XLRs ...

Partial CMRR? Whatever that means. I dunno, but the extra wire from RCA shield to XLR pin 3 allows for a separate pathway for ground noise, so I dunno?

 

[graz_lag]

Partial CMRR? Whatever that means. I dunno, but the extra wire from RCA shield to XLR pin 3 allows for a separate pathway for ground noise, so I dunno?

I used an HUM X ground isolator once to solve a ground loop :
https://www.amazon.com/Ebtech-Hum-V...qid=1473031920&sr=8-1&keywords=AC+ground+lift

 

[amirm]

It is a pity @amirm cannot get any KORG DS-DAC100 to test, I have it but it does not make any sense to ship it to him from France ...

I actually have one on loan and is on the test bench right now....

 

[graz_lag]

I actually have one on loan and is on the test bench right now....

 

[Voo]

I hooked up some rca's along with xlr out to the thxaaa789 and noticed a good drop in output compared to xlr. Is this expected and the norm for rca vs xlr? I was listening on headphones and just pressing the input button on amp in/out.

 

[Legion1capone]

That's because there is a much higher VRMS output on the XLR compared to the RCA. 2Vrms on the RCA and 4.3vrms on the XLR.

I hooked up some rca's along with xlr out to the thxaaa789 and noticed a good drop in output compared to xlr. Is this expected and the norm for rca vs xlr? I was listening on headphones and just pressing the input button on amp in/out.

 

[Voo]

thanks. my 1st external dac so learning as I enjoy it.

 

[amirm]

View attachment 20115

Wasn't meant to be: https://www.audiosciencereview.com/...iew-and-measurements-of-korg-ds-dac-100.6134/

 

[bequietjk]

Wasn't meant to be: https://www.audiosciencereview.com/...iew-and-measurements-of-korg-ds-dac-100.6134/

Yes I'm sad about the Korg, too. It looks so amazing, but... T.T

 

[amirm]

Maybe someone can do some surgery and put in a Khadas tone board and JDS Labs Atom in it.