Review and Measurements of New Topping D50s DAC

[TomB19]

Does Topping have an over-demand issue?

I need another DAC and just assumed I would pick up another P50/D50s/A50s stack but the P50 is no longer bundled with either component and prices have gone up 50%.

At this point, I'm thinking of going with a DX7 Pro for about the same price.

 

[cap1980]

https://ru.shenzhenaudio.com/produc...dsd512-32bit-768khz-hi-res-audio-hifi-decoder

 

[CorvusCorax]

Can I connect my Android phone to the D50s with Bluetooth and input bit-perfect audio streams to the DAC?

In other words, if I'm streaming hi-res 24/192 from Qobuz or Primephonic, will the DAC actually receive the hi-res stream bit perfect? Or would the Android OS or Bluetooth transmission downsample the stream? My phone would be 10 feet from the DAC.

 

[Killingbeans]

Or would the Android OS or Bluetooth transmission downsample the stream?

All Bluetooth audio transmission goes through a codec that compresses the data. Some of them handle higher kbps rates than others.

Whether it makes an audible difference is not for me to say.

 

[Buster Chestnut]

Q: Do Topping D50s support both bitstream and LPCM input via Coax/Opto? My unit only works with LPCM and I wonder if that is right?

 

[trotos]

Hi all,
The usb input port is somehow loosed and there is a constant disconection from my PC. So I would like to issue a replacement order.
I was wondering if there are changes in the pats od D50s that makes it a better or worse DAC.
many thanks

 

[TomB19]

Hi all,
The usb input port is somehow loosed and there is a constant disconection from my PC. So I would like to issue a replacement order.
I was wondering if there are changes in the pats od D50s that makes it a better or worse DAC.
many thanks

I have one of the original D50s and it has functioned perfectly.

Would you happen to have a newer AMD system with 5xx chipset? There have been a lot of issues with USB disconnect on those platforms and AMD is investigating. I expect a fix will be out soon.

 

[Gradius]

Can I connect my Android phone to the D50s with Bluetooth and input bit-perfect audio streams to the DAC?

No BT is "bit-perfect". The max on v5 is 1.4Mbit/s (2Mbit/s is marketing stuff, see attached).

So for your 192kHz @ 24-bit, it needs at least 9.3Mbit/s (min is 9.216), now you get the picture.

The max quality is by using LDAC, but even so, is far from "bit-perfect".

 

[skyfly]

Unscientific D50s filter test through loudspeaker, not headphone.

Only Filters 1 and 5 were tested.

Short term listening
Switching between filters with the remote, I could not feel difference in sound.

Long term listening
I tended to enjoy music for longer time with Filter 5.

This result is opposite to my prejudice. On audio magazines, I saw that pre-ringing did not look nice. I heard that Filter 1 is to address ringing. So subconsciously, I probably tried to like Filter 1.

Of course, the long term test depends on weather, what happens at work during that week, etc., which I cannot control.

 

[htleetw]

I have AUNE S6(DAC+headphone amp) and Nuforce STA120(speaker amp). There is obvious annoying hump(?) noise when I connect STA120 to S6's RCA output. I am not sure if matching issue causes it. I try to get a new DAC for STA120.

The spec I can get of STA120 is:
Sensibility 1Vrms
SNR 115dB
(I can't fine its input impedence.)

The spec of S6
XLR/RCA:
Frequency response: ±0.4dB(20Hz to 20kHz) Dynamic range: 116Db SNR: 115dB
THD+N: 0.0008%@1KHz Stereo crosstalk: -132dB
Output amplitude RCA: 2Vrms XLR:4Vrms

I prefer DAC with bluetooth and better both RCA & XLR output so that I can connect to STA120 & another headphone amp.
Topping D50S, D70S; SMSL SU-9, M200
which will match well(no noise) with STA120?

Appreciated!!

 

[Gradius]

Unscientific D50s filter test through loudspeaker, not headphone.

Only Filters 1 and 5 were tested.

As for filter it was done already:
https://www.audiosciencereview.com/...on-filter-modes-audio-measurements-png.28406/

As personal taste, I use Filter 4.

 

[Veri]

As personal taste, I use Filter 4.

Funnily enough, that is the most MQA-like filter, Gradius

 

[skyfly]

As for filter it was done already:
https://www.audiosciencereview.com/...on-filter-modes-audio-measurements-png.28406/

As personal taste, I use Filter 4.

The noise plots and ES9038Q2M_Datasheet_v1.3 are inconsistent.

Linear Phase Fast Roll Off filter has 120dB stop band rejection, but Filter 5 does not have -120dB rejection in the noise graph.

 

[Buster Chestnut]

I have AUNE S6(DAC+headphone amp) and Nuforce STA120(speaker amp). There is obvious annoying hump(?) noise when I connect STA120 to S6's RCA output. I am not sure if matching issue causes it. I try to get a new DAC for STA120.

The spec I can get of STA120 is:
Sensibility 1Vrms
SNR 115dB
(I can't fine its input impedence.)

The spec of S6
XLR/RCA:
Frequency response: ±0.4dB(20Hz to 20kHz) Dynamic range: 116Db SNR: 115dB
THD+N: 0.0008%@1KHz Stereo crosstalk: -132dB
Output amplitude RCA: 2Vrms XLR:4Vrms

I prefer DAC with bluetooth and better both RCA & XLR output so that I can connect to STA120 & another headphone amp.
Topping D50S, D70S; SMSL SU-9, M200
which will match well(no noise) with STA120?

Appreciated!!

Could be a number of things but sounds like a ground loop issue. I’d start by swapping out cables one at a time to see if it goes away. Just Google ”ground loop hum” and see if that’s what you’re experiencing.

 

[htleetw]

Could be a number of things but sounds like a ground loop issue. I’d start by swapping out cables one at a time to see if it goes away. Just Google ”ground loop hum” and see if that’s what you’re experiencing.

Thanks for suggestion!
I tried STA120 amp not connecting to S6, there is no noise. I also tried two different RCA cables. Both have noise. That's why I guess it may be matching issue.

 

[Vosya]

Linear Phase Fast Roll Off filter has 120dB stop band rejection, but Filter 5 does not have -120dB rejection in the noise graph.

Because the Topping D50s DAC measurements were obviously carried out incorrectly, but no one is in a hurry to admit this and change the conditions of the experiment.
This problem is by no means new:
https://www.audiosciencereview.com/...ts-of-topping-d50-dac.2403/page-49#post-94424

 

[Buster Chestnut]

Thanks for suggestion!
I tried STA120 amp not connecting to S6, there is no noise. I also tried two different RCA cables. Both have noise. That's why I guess it may be matching issue.

what about the power cable? Impedance matching issues for modern digital equipment is rare to nonexistent.

 

[trotos]

I have one of the original D50s and it has functioned perfectly.

Would you happen to have a newer AMD system with 5xx chipset? There have been a lot of issues with USB disconnect on those platforms and AMD is investigating. I expect a fix will be out soon.

Sorry for the late answer, I bought mine August 2019. I have an AMD B350, so that might not be an issue, this happens when for any reason the cables are moved, even a little, and only from the DAC position.

 

[Gradius]

The noise plots and ES9038Q2M_Datasheet_v1.3 are inconsistent.

Linear Phase Fast Roll Off filter has 120dB stop band rejection, but Filter 5 does not have -120dB rejection in the noise graph.

View attachment 117413

Never use datasheet to find out something if you already have the measurement from a specific DAC.

The differences will be ALWAYS on implementation. Congrats, now you know WHY actual measurements (from DAC itself) are so important.

 

[pogballistics]

Has anyone directly compared the Topping D50s with Topping E30?