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Review and Measurements of Topping DX3Pro DAC and Headphone Amp

Veri

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Doomguy

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I've been eyeing this unit since it came out as I want something to replace my AudioGD NFB15.32 DAC/Amp unit. Would somebody kindly give me the skinny on the current situation with this unit? The size of this thread is a little overwhelming o_O

I remember reading that it had a problem related to a bad opamp or something causing to it shut down without warning? I also vaguely remember something about one of the outputs (can't remember if it was fixed or variable) not being great? I'm wanting to use this unit as both a headphone amp and a preamp volume control for my speakers, so it would be a deal breaker if it wasn't ideal for that latter purpose. If I did decide to pull the trigger on it, is there a particular serial number I should be looking for?

Thank-you in advance!
 
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I've been eyeing this unit since it came out as I want something to replace my AudioGD NFB15.32 DAC/Amp unit. Would somebody kindly give me the skinny on the current situation with this unit? The size of this thread is a little overwhelming o_O

I remember reading that it had a problem related to a bad opamp or something causing to it shut down without warning? I also vaguely remember something about one of the outputs (can't remember if it was fixed or variable) not being great? I'm wanting to use this unit as both a headphone amp and a preamp volume control for my speakers, so it would be a deal breaker if it wasn't ideal for that latter purpose. If I did decide to pull the trigger on it, is there a particular serial number I should be looking for?

Thank-you in advance!
Topping said they rectified the situation, anyone who has failing units seems to have older production units. And tbf, the number of failures were probably within the normal range for a mass produced electronic product, the audiophile community is just small so when someone has a broken product, you can be sure they will make noise on all social media and audio forums (and rightly so). Also, I don't know where people came up with that that the line outs suck, Amir didn't say that in his initial review? I've been using it with powered monitors and an AV receiver in a 2.1 set up, it sounds great to me (I'm just a consumer who can appreciate good audio, I'll leave the technical aspects up to others in the forum). I purchased mine through the Schenzhen Audio eBay store, they seem to have the newer production units and they have excellent customer service.
 

Doomguy

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Fortunately there is a store in my country that sells the DX3 Pro, so I wouldn't have to deal with international shipping in case of returns. All that said, the two main selling points of this unit (remote control and bluetooth) really are of no value at all to me, and with the release of the outstanding JDS Labs Atom, it's probably a good idea to wait for a successor to the O2+odac unit based on the atom design, or go for separate units entirely rather than an AIO solution. My AGD is still fully operational, after all, I just have an itch for something a bit more transparent and neutral. Probably best to be patient.
 
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Fortunately there is a store in my country that sells the DX3 Pro, so I wouldn't have to deal with international shipping in case of returns. All that said, the two main selling points of this unit (remote control and bluetooth) really are of no value at all to me, and with the release of the outstanding JDS Labs Atom, it's probably a good idea to wait for a successor to the O2+odac unit based on the atom design, or go for separate units entirely rather than an AIO solution. My AGD is still fully operational, after all, I just have an itch for something a bit more transparent and neutral. Probably best to be patient.
Well there you go, you answered your own question :) my situation was different, I was running my powered monitors from the headphone out of a Fiio E07k so I NEEDED a proper desktop unit, the Dx3 ticked all the boxes for me and at a good price.
 

Yuno

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Fortunately there is a store in my country that sells the DX3 Pro, so I wouldn't have to deal with international shipping in case of returns. All that said, the two main selling points of this unit (remote control and bluetooth) really are of no value at all to me, and with the release of the outstanding JDS Labs Atom, it's probably a good idea to wait for a successor to the O2+odac unit based on the atom design, or go for separate units entirely rather than an AIO solution. My AGD is still fully operational, after all, I just have an itch for something a bit more transparent and neutral. Probably best to be patient.
If you don't need it right now, wait for new version of dx3 pro. If topping manages to get all the issues out of this device with second version, this will be perfect budget dac.
 
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Fortunately there is a store in my country that sells the DX3 Pro, so I wouldn't have to deal with international shipping in case of returns. All that said, the two main selling points of this unit (remote control and bluetooth) really are of no value at all to me, and with the release of the outstanding JDS Labs Atom, it's probably a good idea to wait for a successor to the O2+odac unit based on the atom design, or go for separate units entirely rather than an AIO solution. My AGD is still fully operational, after all, I just have an itch for something a bit more transparent and neutral. Probably best to be patient.
The dx3 is just as good or better,the atom is a amp,so you will need a dac
 
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I'm not German, but Croatian :D
Yes, it is almost always the same with amazon.com, because it's outside of EU, you can always expect there will be customs and import fees to pay over certain item value. And I think there will always be VAT, regardless of item value. I also think that amazon support may sometimes give wrong info, particularly when they talk of external sellers.
So when you order from amazon.com (usa department) you can be certain there will always be additional charges if importing to EU.

But like you, I thought these fees are always calculated and charged in advance, via Amazon. It seems it doesn't have to be that way. From the whole experience I think it is always calculated and charged in advance by Amazon itself if it is fullfilled by Amazon or bought directly from Amazon. But if it is bought only through Amazon marketplace, but from external seller, then it doesn't have to be calculated and charged in advance. I suspect this theory applies to your case too, but cannot be sure.
That's why I ordered from Amazon department within EU, to be certain that it'll ship from EU country to EU country and that no import fees and additional VAT would be charged. But I did it on mobile phone amazon app and it really doesn't give you all the information, If I ordered it via desktop I'd notice my mistake before concluding the purchase. I ordered DX3 Pro on May 2nd, it arrived 2 days ago, but would have arrived few days sooner if the invoice were in the package, which it hadn't been.
Also take care that you always get items sold / fullfilled by Amazon itself, from any of EU Amazon stores. That way you will know that you won't get charged anything else.
To summarize your case is somewhat similar, with the main difference being it was ordered from USA Amazon department, and from that I think that import/customs fees and VAT were to be expected from the start. But anyways, the seller Shenzen Audio is very polite and understanding, so you may try politely explaining everything and asking them for help.
Be careful if refusing package, first ask on Amazon and seller too if you have grounds for it, and whether you can get full refund or costs of shipping and handling will be deducted from it.
I wish you good luck with it
update.
The package arrived in Italy without requiring the payment of customs costs. I rejected the package and the seller SHENZEN AUDIO immediately refunded me.
I'm really happy. I also highly recommend this seller
 

sonci

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Has anyone tried it against the new D70? I don't need balanced output, so if there's not a big difference audibly, then why spend more. I also tried a Topping Dac before the D30 but I didn't like it..
 

Veri

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Has anyone tried it against the new D70? I don't need balanced output, so if there's not a big difference audibly, then why spend more.
If no balanced output is needed, I'm positive one cannot hear the difference between DX3/D70. Their performance is just too similar.

DX3/AK4493 just too good :D
 

fsturbo15

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I like the all in one package of the DX3 versus the JDS Atom + separate DAC, plus all the criticism the JDS gets for below par build quality but the reliability issues I am hearing about the DX3 Pro sound pretty scary.

I am thinking I should just get the Atom and a seperate DAC; it may not be as pretty and feel a bit cheap but we know the performance will be top notch and it won't fail on me. Does anyone know if JDS is coming out with DAC/AMP combo version of the Atom soon or should I just get seperates now OR are we confident the DX3 Pro quality issues have been corrected?

I'll be driving HD650's.
 
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The weirdest thing just happened. I got one of those USB-C to HDMI adapters and was trying out Dex for Samsung with my Galaxy S9+ (essentially turns your smartphone into a desktop PC). There is an extra USB 3.0 port on the adapter for peripherals so I thought "hey, let's try out the DX3 and see if we can route audio out while video runs out the HDMI port on the adapter".

I opened up Poweramp Android music app and music played for about 5 seconds before cutting out. Poweramp kept playing music and it said it was running to the DX3, but no sound was playing either from my speaker nor headphones. Gave up on it and plugged the DX3 back into my PC. The PC wouldn't recognize the DX3 at all (this is via USB), Bluetooth was working, but no USB functionality. I tried pre-line-out and headphone out and no sound would play, the Topping driver panel in WIndows would not recognize anything either. I tried selecting full line-out to my speakers and lo and behold there was sound (nearly blew my speakers and eardrums :| ), It said 192 khz was running out the back, but the song that was playing was a different frequency. So essentially the DX3 was stuck in 192 khz and would only play sound when full line-level output was selected. Tried factory reset where you turn the dial 6 times counterclockwise while in rest mode, that did nothing. After a bit of panic, I remembered to pull the power plug out the back and then plug it back in, that seemed to fix the issue!

Everything seems to have returned to normal. Got a hell of a fright as well thinking something had broken on the damn thing. Does anyone have any idea as to what I just experienced?
 

MPeaches

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Got it from my local hi-end audio shop, loving it. JFL tested dx3 against multiple much pricey sources at the store (something from teac, top-shelf schiit stack, OPPO ha-1) and couldn't feel even a slightest difference with Hifiman Sundara. Even brought my laptop for extensive tests on familiar hi-res tracks. I originally planned to go with Loxjie P20+SMSL SU-8, but oh well, P20 is going back to china now.

Also, dx3s since 1904594xxx serial number are having new PSU and a bigger remote controller with 2 AAA batteries which feels really nice.
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TiborG

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The weirdest thing just happened. I got one of those USB-C to HDMI adapters and was trying out Dex for Samsung with my Galaxy S9+ (essentially turns your smartphone into a desktop PC). There is an extra USB 3.0 port on the adapter for peripherals so I thought "hey, let's try out the DX3 and see if we can route audio out while video runs out the HDMI port on the adapter".

I opened up Poweramp Android music app and music played for about 5 seconds before cutting out. Poweramp kept playing music and it said it was running to the DX3, but no sound was playing either from my speaker nor headphones. Gave up on it and plugged the DX3 back into my PC. The PC wouldn't recognize the DX3 at all (this is via USB), Bluetooth was working, but no USB functionality. I tried pre-line-out and headphone out and no sound would play, the Topping driver panel in WIndows would not recognize anything either. I tried selecting full line-out to my speakers and lo and behold there was sound (nearly blew my speakers and eardrums :| ), It said 192 khz was running out the back, but the song that was playing was a different frequency. So essentially the DX3 was stuck in 192 khz and would only play sound when full line-level output was selected. Tried factory reset where you turn the dial 6 times counterclockwise while in rest mode, that did nothing. After a bit of panic, I remembered to pull the power plug out the back and then plug it back in, that seemed to fix the issue!

Everything seems to have returned to normal. Got a hell of a fright as well thinking something had broken on the damn thing. Does anyone have any idea as to what I just experienced?
Good attempt to Dispose of DX3. From Android you have to go through OTG-USB adapter to DX3 supplied USB cable. Android Settings / Developer Settings / USB Configuration / Switch from MTP to Audio Source It depends on the Android version. I think Android 8.0 doesn't have this setting. Be glad you didn't take off DX3. Finally, it's also in the picture to connect your smartphone to DX3 in manual.
Galaxy S9 + has optional Bluetooth AptX HD, so you don't risk anything and you don't know the difference in quality when connected.Very simple test
 
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Got it from my local hi-end audio shop, loving it. JFL tested dx3 against multiple much pricey sources at the store (something from teac, top-shelf schiit stack, OPPO ha-1) and couldn't feel even a slightest difference with Hifiman Sundara. Even brought my laptop for extensive tests on familiar hi-res tracks. I originally planned to go with Loxjie P20+SMSL SU-8, but oh well, P20 is going back to china now.
MPeaches:

You wouldn't know what that "something from TEAC" was would you? I am very interested in the TEAC NT-505 as a two-in-one solution for a music file/online streamer/DAC solution for my bedroom audio setup. I have the Topping DX3 and like it very much, but right now it is just being used as a very good quality DAC to feed powered stand-alone PC speakers and headphones at my computer desk. I would be a tad-bit surprised to find-out that the DX3 outperforms the much higher-priced and [so far] relatively well-reviewed TEAC NT-505. But, I guess that's what we find out in this forum all too often, isn't it?

- john
 
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Good attempt to Dispose of DX3. From Android you have to go through OTG-USB adapter to DX3 supplied USB cable. Android Settings / Developer Settings / USB Configuration / Switch from MTP to Audio Source It depends on the Android version. I think Android 8.0 doesn't have this setting. Be glad you didn't take off DX3. Finally, it's also in the picture to connect your smartphone to DX3 in manual.
Galaxy S9 + has optional Bluetooth AptX HD, so you don't risk anything and you don't know the difference in quality when connected.Very simple test
Thanks for the reply. Yes I know it needs an OTG cable, which the adapter I purchased says it is as well as a USB c to HDMI adapter. USB out to MIDI was selected as that is the new Android versions option for audio out to DAC. I guess the S9 can't push both audio to a DAC and video to HDMI at the same time
 
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Got it from my local hi-end audio shop, loving it. JFL tested dx3 against multiple much pricey sources at the store (something from teac, top-shelf schiit stack, OPPO ha-1) and couldn't feel even a slightest difference with Hifiman Sundara. Even brought my laptop for extensive tests on familiar hi-res tracks. I originally planned to go with Loxjie P20+SMSL SU-8, but oh well, P20 is going back to china now.

Also, dx3s since 1904594xxx serial number are having new PSU and a bigger remote controller with 2 AAA batteries which feels really nice.
Mine is 1902 so it seems not to be a general rule. But maybe I've got new remote and power supply because of replacement of my faulty DX3 Pro by Topping.
 
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