Measurements of Topping DX3Pro LDAC/V2

[WolfX-700]

In the Should Topping send Amir a DX3Pro LDAC/V2 to test? thread, someone asked me if I could measure DX3Pro LDAC/V2. Considering that this unit was not in my purchase plan, I borrowed one from Topping.

From its Amazon price of $ 219.99, it seems that it should not be too much to complain about appearance, texture, build quality, etc.
But if you are critical, you can blame the quality of the RCA / COAX connector.
The touch of the surface treatment is very good, and I really like how it feels when touched --- the sound from the friction of the touch is not soft enough.
The encoder switch has good damping and positioning feel. However, the sound is slightly "fluffy", which is not good enough ...

Well, forget the nonsense above ... Measure it!

Part I: DAC

Part 2: Headphone output

output impedance:

IMO: The headphone output is actually not good enough (sorry, this conclusion does not consider the price). But the DAC part is doing well.

The price is beyond reproach.

BTW: Bluetooth testing may have to wait a few days, my adapter has not arrived yet.

 

[thomasjast]

Thank you for doing this!

Damn, that linearity is looking bonkers. Are you able to test headphone output impedance or output power at 300ohm?

 

[WolfX-700]

Thank you for doing this!

Damn, that linearity is looking bonkers. Are you able to test headphone output impedance or output power at 300ohm?

Ah, I forgot to measure the output impedance ... After a while, I take care of my family first.

 

[PianoDar]

From my reading, this is as good or better than V1? (other than the higher output impedance)

 

[Deleted member 5620]

The two channels measure differently in SINAD and linearity. Interesting. Channel mismatch...?

 

[pthung]

The main difference between this version and version 1 is bluetooth LDAC support. Looking for your bluetooth measurements,
WolfX.

 

[JohnYang1997]

The two channels measure differently in SINAD and linearity. Interesting. Channel mismatch...?

Because there are two 4493 chips. There are certainly some variations.

 

[MattH5]

IMO: The headphone output is actually not good enough (sorry, this conclusion does not consider the price).

The price is beyond reproach.

For someone who isn't great at reading these graphs... could you (or anyone) comment further on these points please?

BTW I got this for $165 on Drop. That deal is sold out now. Interestingly, it was shipped straight from China so they've obviously got some arrangement there. Not sure if it'll be that price again but worth watching for it if you're interested.

 

[Tks]

Because there are two 4493 chips. There are certainly some variations.

Shouldn't be this much if you ask me personally..

 

[ninetylol]

Thank you for the measurements. Glad Ive chosen the Topping D50S instead :O

@WolfX-700 did you also get a sample of the Topping A50? Really want to See how it measures.

 

[patient_ot]

Other than the headphone output impedance being too high for some headphones, looks very good overall.

 

[daftcombo]

Other than the headphone output impedance being too high for some headphones, looks very good overall.

People with 60ohm and more cans shouldn't worry though.

 

[trotos]

The price is beyond reproach.

Is This comment based on the fact that the previous model with the same price tag had better overall measurements (putting aside the QC)?

 

[Daniel Simion]

So is it better or worse than the V1?

 

[jani80k]

So is it better or worse than the V1?

Much worse. Output Impedance is 20 times as high. This device would not have been recommended by Amir I think.

 

[Daniel Simion]

But as a DAC it seems to be better. Right?

 

[jani80k]

But as a DAC it seems to be better. Right?

With the D50s out, it would make little sense to buy the DX3 Pro just as a DAC.

 

[Yuno]

Much worse. Output Impedance is 20 times as high. This device would not have been recommended by Amir I think.

1 times 20 is 20, not 10.

But as a DAC it seems to be better. Right?

DAC portion is the same between v1 and v2.

 

[Daniel Simion]

1 times 20 is 20, not 10.


DAC portion is the same between v1 and v2.

Ok, now i understand. Can i use 35ohms headphones with this? I have the Audio Technica M40x and i really like them.

 

[Yuno]

Ok, now i understand. Can i use 35ohms headphones with this? I have the Audio Technica M40x and i really like them.

You can, but it's not ideal. Output impedance of amp should be 1/8 of headphones impedance, in this case around 4Ohm. I would recommend getting atom as amp with dac of choice instead.