Topping DX5 II

[Timbo2]

Have you checked the input level? The DXII can distort the input signal. Some time ago, I was listening to Spotify and I heard distortion. I checked the input level, it was too high, the EQ was off... strange because it's a digital signal, so it doesn't exceed digital "0." However, I could definitely hear distortion. I lowered the input signal... and everything went back to normal. you can check this using a DXII CLASSIC VU meter set to +10dBu

At least over Bluetooth you can stream YouTube with positive meter values even with the +10dBu setting with no noticeable distortion. I've not tried USB.

 

[Esuess]

Have you checked the input level? The DXII can distort the input signal. Some time ago, I was listening to Spotify and I heard distortion. I checked the input level, it was too high, the EQ was off... strange because it's a digital signal, so it doesn't exceed digital "0." However, I could definitely hear distortion. I lowered the input signal... and everything went back to normal. you can check this using a DXII CLASSIC VU meter set to +10dBu

Indeed, Spotify and other sources like YouTube can indeed clip your DAC internally if the signal is strong enough.
Tidal has not had this issue for years now but did clip on occasion in the past.

At least over Bluetooth you can stream YouTube with positive meter values even with the +10dBu setting with no noticeable distortion. I've not tried USB.

Hi All,

How should I check the input level?

For the USB I'm using my computer and it is at 100. Using a USB C to 3.5 DAC or my Truthear SHIO DAC even at 100 set in the PC volume the headset does not clip. More so that it is too loud to be pleasant to listen to.

For bluetooth, which I've also tested I also set the volume on my phone to max and tested with both outputs that there is still clipping.

The clipping is only on the left side as well so it doesnt make any sense

 

[Roland68]

Cable is all good, tested jack and there is no beeps. I also tested the connection to left and right and it seems to be right.

If I'm looking for voltages what numbers should I look for?

*edit:
I also tested at a single frequency and found the clipping at -20db on high gain 100hz.

I used the video below for testing:

Using a multimeter one of the outputs is registering as .34v and the other is at .54v

This sounds to me like you're having a problem with your DX5 II.

Have you tried a different pair of headphones with the DX5 II?

 

[ohezeba]

Hi All,

How should I check the input level?

For the USB I'm using my computer and it is at 100. Using a USB C to 3.5 DAC or my Truthear SHIO DAC even at 100 set in the PC volume the headset does not clip. More so that it is too loud to be pleasant to listen to.

For bluetooth, which I've also tested I also set the volume on my phone to max and tested with both outputs that there is still clipping.

The clipping is only on the left side as well so it doesnt make any sense

Hi All,

How should I check the input level?

For the USB I'm using my computer and it is at 100. Using a USB C to 3.5 DAC or my Truthear SHIO DAC even at 100 set in the PC volume the headset does not clip. More so that it is too loud to be pleasant to listen to.

For bluetooth, which I've also tested I also set the volume on my phone to max and tested with both outputs that there is still clipping.

The clipping is only on the left side as well so it doesnt make any sense

Have you tried doing a factory reset? Which version is the serial number, what are the first four digits? It’s printed on the right or left side.

 

[Mario1969]

Hi All,

How should I check the input level?

you can check this using a DXII CLASSIC VU meter set to +10dBu .... see the photo

 

[Bauhaus]

you can check this using a DXII CLASSIC VU meter set to +10dBu .... see the photo

How do you know there is distortion using the VU meter? When it reach the red section,0?
Is it not also an indication of poor recording quality if the VU meter is consistently in the red? if yes, do you have an example of poor recording?

 

[Mario1969]

How do you know there is distortion using the VU meter? When it reach the red section,0?
Is it not also an indication of poor recording quality if the VU meter is consistently in the red? if yes, do you have an example of poor recording?

The VU meter shows the volume (intensity) of the audio signal; it has nothing to do with the quality of the recording. In the analog world, moving slightly into the red zone was inaudible, but in the digital world, exceeding the digital “0” causes clipping... it just so happens that this particular UV METER set to +10dBu shows the point at which the DXII is overdriven, it exceeds the digital ""0"", at least in mine.

 

[Bauhaus]

The VU meter shows the volume (intensity) of the audio signal; it has nothing to do with the quality of the recording. In the analog world, moving slightly into the red zone was inaudible, but in the digital world, exceeding the digital “0” causes clipping... it just so happens that this particular UV METER set to +10dBu shows the point at which the DXII is overdriven, it exceeds the digital ""0"", at least in mine.

Is the DX5 II faulty, or is it a normal occurrence in certain situations? I apologize for all these questions. I’m trying to educate myself about audio.

 

[Morla]

Also: who tells us that the graphical vu meter is not lying?

 

[Mario1969]

Is the DX5 II faulty, or is it a normal occurrence in certain situations? I apologize for all these questions. I’m trying to educate myself about audio.

Any AUDIO digital device will clip after exceeding the digital "0" unless it has a built-in LIMITER. The DX5II doesn't have such a function... at least I haven't heard of it.

 

[Roland68]

Also: who tells us that the graphical vu meter is not lying?

What reason or purpose could that possibly have?
If you have any doubts, you can measure it and post the results.

 

[Morla]

It could be programmed badly because it's software is one perfectly possible reason. Not on purpose maybe. So unless someone can measure what that meter shows graphically there or it's all just beliefs.

 

[Morla]

Ah okay I must have missed the part where you said you actually measured what the vu meter shows. Sorry for that

 

[Mario1969]

Ah okay I must have missed the part where you said you actually measured what the vu meter shows. Sorry for that

it's not entirely true that the CLASSIC VU meter set to +10dBu in the DX5II shows a digital "0" this meter shows when the device is overdriven .. and clipping may occur

 

[JIW]

At loads of 16 Ohm or higher, the DX5 II will not clip in low gain. Single ended, maximum output at 16 Ohm is 3.3 W, which is 10*log10(3.3*16) = 17.2 dBV, balanced it is 7.6 W, which is 10*log10(7.6*16) = 20.8 dBV. Since output at full volume in low gain is 8.6 dBV single ended and 14.6 dBV balanced, it will only clip in high gain and only above -10 dB. Since output at full volume in high gain is 18.7 dBV single ended and 24.7 dBV balanced, it will clip at -1.5 dB single ended and -6 dB balanced. If it clips earlier and does not have a load lower than 16 Ohm, there is an issue with the signal, either going into the DX5 II or by being manipulated in the PEQ or the device is defective.

If you have not already, contact Topping.

 

[Hapo]

...I could not access any PEQ so back it went...I was able to uninstall Topping Tune w/o issue...

 

[zaraki]

i just got this unit and love it so far but when i turn the unit off my eq setting disapear, does anyone else have this issue?

my unit shipped with the latest firmware DX5 II version V1.78 from what i can tell

 

[ngs428]

i just got this unit and love it so far but when i turn the unit off my eq setting disapear, does anyone else have this issue?

my unit shipped with the latest firmware DX5 II version V1.78 from what i can tell

Yes, I assume you are referring to eq profiles in topping tune that are stored to the device. They don’t show up in topping tune when the unit is powered off.

 

[zaraki]

Yes, I assume you are referring to eq profiles in topping tune that are stored to the device. They don’t show up in topping tune when the unit is powered off.

sorry i meant on the amp/dac it self not the windows app

when i turn off and then turn on again the amp/dac unit the eq profiles i saved to the device with topping tune are gone and i have to add them again

edit: to further clarify the eq profiles i saved disappear both when i turn off the amp/dac from the back of the unit and also when i turn off the unit via the remote it came with and they no longer show up on the amp/dac unit and in the topping tune app on the device section

 

[Mario1969]

i just got this unit and love it so far but when i turn the unit off my eq setting disapear, does anyone else have this issue?

To save EQ settings in DX5II you must use TOPPING TUNE .. USER CONFIG not LOCAL CONFIG, and set ENABLED - PEQconfig in DX5, also update to the latest version of TOPPING TUNE