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Review and Measurements of New Topping D50s DAC

AresHarvest

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Imo: need balanced? D70.
Need SE, want bluetooth? D50s.

In addition: D50s is a good fit, but you want to save money, and you don't already have a separate headphone amp? DX3pro.

WTH. I just got the D50 last week! -_- and this comes out... Come on!!

Time to upgrade? Or just keep the D50.. I got it from that recent sale for $170 i think?

Possible to return it and wait?
 

Snarfie

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QUOTE="daftcombo, post: 191678, member: 6112"]Good question but no, the D10 doesn't have the ESS hump. :)

index.php


https://www.audiosciencereview.com/...s-of-topping-d10-dac.2470/page-67#post-157302[/QUOTE]
Looks like exactly the same as the D50s.
 

Lafayette

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I don't think I could get used to the volume control not being a knob. Unless it is a knob you can turn and I'm not seeing it right.
 
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amirm

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I don't think I could get used to the volume control not being a knob. Unless it is a knob you can turn and I'm not seeing it right.
It is a joystick, not a knob.
 
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amirm

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Here is a double test: optical input and THD+N vs Frequency:

1561658382380.png


There is an ultrasonic tone at 28 kHz when feeding it 20 K input that is at -80 dB or so, setting that limit.
 
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amirm

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amirm

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Subjectively would you advise to go for an upgrade from D50?
No. I would upgrade for the remote though. It is so nice to change modes using the remote than messing with menus.
 

digititus

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Which ESS dac is it using? Still ES9038Q?
 

Calexico

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Here is a double test: optical input and THD+N vs Frequency:

View attachment 28440

There is an ultrasonic tone at 28 kHz when feeding it 20 K input that is at -80 dB or so, setting that limit.
If i look at this graph sinad is less than 100db at 1khz. On your review it's 110db. Did i miss something?
Also that means sinad at 20khz is 80db?
Also d70 sinad is around 100db??
Could you perform tests of sinad at 16bit and 24bit and 44.1khz and 96 khz to check if it gives differences in sinad?
Is it a stupid question?
What samplerate and bitdepth do you use for your tests?
 
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amirm

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If i look at this graph sinad is less than 100db at 1khz. On your review it's 110db. Did i miss something?
They are different tests. Dashboard is limited to 22.4 kHz, the THD+N vs frequency uses 90 kHz so includes a lot of ultrasonic noise in the measurements. If I use audible band, we won't capture harmonic distortion above 11 kHz.
 
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amirm

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Also that means sinad at 20khz is 80db?
Yes, but again the reason it is that is because of ultrasonic tone at 28 khz which you don't hear.
 
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amirm

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Could you perform tests of sinad at 16bit and 24bit and 44.1khz and 96 khz to check if it gives differences in sinad?
I have done that before. 16 bit results usually clip to 96 dB SINAD. 96 kHz will add noise and ultrasonic distortion so likely will be similar to THD+N versus frequency that I posted.
 

Calexico

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They are different tests. Dashboard is limited to 22.4 kHz, the THD+N vs frequency uses 90 kHz so includes a lot of ultrasonic noise in the measurements. If I use audible band, we won't capture harmonic distortion above 11 kHz.
Why isn't it filtered by the dac then? It means new dacs are not yet perfect with filtering?
Does those frequencies interact with the audible range?
How is it possible to have -80db when you see the filter curve??
Why not making a sinad test without limiting the bandwidth to be more strong with quality requirements?

Do sinad tests give difference between 44.1 and 48khz?
If i understand measurements are better with 48khz than96khz that lead to more ultrasonic distortion.
 

JohnYang1997

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Idk why it has high distortion at high frequency in thd vs frequency but multitone measurements didn't show that.
 
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JohnYang1997

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Why isn't it filtered by the dac then? It means new dacs are not yet perfect with filtering?
Does those frequencies interact with the audible range?
How is it possible to have -80db when you see the filter curve??
Why not making a sinad test without limiting the bandwidth to be more strong with quality requirements?

Do sinad tests give difference between 44.1 and 48khz?
Noise is inherent in any amplifier. Namely the output opamps. Also you need to learn something about noise integration and how thd+n is calculated with different bandwidths. With non weighted integration High frequency noise contribute to a lot to the results. The reason amir is using that is because more accurate representation for high frequency distortion. Otherwise we will see a dropping thd after 7khz due to limited bandwidth.
 
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