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Topping DX3 Pro+

kingduckling

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Nov 28, 2021
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it seems like powerful than e30+l30 combo but cheaper, then what is the benefit of getting topping stack instead of dx3pro plus?
According to the spec sheet on topping's website l30 has more output power.
But I'm also curious if it makes sense to get the dx3pro+ or something like a d10s/l30 or e30/l30 instead.
 

dsnyder0cnn

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Dec 14, 2019
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According to the spec sheet on topping's website l30 has more output power.
But I'm also curious if it makes sense to get the dx3pro+ or something like a d10s/l30 or e30/l30 instead.
I trust Amir's measurements more than the spec sheets. I'm super happy with the DX3 Pro+, but I guess it depends on what headphones you'll be using and if you need support for balanced cables.

20211129_154100_HDR.jpeg


My only gripe is that I've not found a convenient way to switch it from headphone to DAC mode without using the remote.
 

radiss

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Dec 3, 2021
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I trust Amir's measurements more than the spec sheets. I'm super happy with the DX3 Pro+, but I guess it depends on what headphones you'll be using and if you need support for balanced cables.

View attachment 168910

My only gripe is that I've not found a convenient way to switch it from headphone to DAC mode without using the remote.
Push twice knob button, you can switch mode.
 

haen

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Jun 6, 2021
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Push twice knob button, you can switch mode.
Unfortunately this 'double push' is hard to do consistently. I usually manage to do that, but sometimes I'm not fast enough and instead the device switches the input source, which is annoying. I'm not sure if it could be adjusted by a firmware update to be a bit more lenient, @JohnYang1997?
 

GeorgeWalk

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Sep 6, 2019
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I am having a problem with my DX3 Pro+ when I try to use it with my iPhone via USB. It works fine with Bluetooth, however, iPhone to USB does not work. The phone recognizes the DX3 Pro+ and says it is playing to it, but no sound comes out of the headphones (I have checked the DX3's headphone and DAC settings). If I plug the USB cable into my Macbook the sound comes out fine. I have tried both to iPhone to USB and the iPhone Camera adapter cables (both from Apple) and there is no sound. If I use a different dac/headphone via the same USB set up, it works fine.

Any ideas?
 

GeorgeWalk

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Sep 6, 2019
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Never mind. It is fixed. After some internet searching, I found that there is a bug in iOS 15.1 that prevents audio from playing over USB. I updated to 15.2 and the problem is fixed.
 

kingduckling

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Nov 28, 2021
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I gotta say i find this to be lower in volume output than my fiio k5 pro, even on high gain.
I am very new to looking into audio tech, but personally i did not find any audible difference between motherboard alc898 and dx3 pro+ other than volume output. Im using a sundara and an akg k702.
I personally wish there would be some software that would tell me what volume my headphones output knowing the sensitivity and resistance of the headphone.
 

dsnyder0cnn

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Dec 14, 2019
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I personally wish there would be some software that would tell me what volume my headphones output knowing the sensitivity and resistance of the headphone.
I think more inputs are required to perform that calculation. This device should do the trick:

 

radix

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Aug 1, 2021
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Unfortunately this 'double push' is hard to do consistently. I usually manage to do that, but sometimes I'm not fast enough and instead the device switches the input source, which is annoying. I'm not sure if it could be adjusted by a firmware update to be a bit more lenient, @JohnYang1997?

I agree the double push is undoable, at least by me. 4 out of 5 times, I just change the input. I have to use the buttons on the remote.

I didn't think I would be using PRE mode on it, but I ended up with wiring spaghetti without it. I should have got the EX5 to better feed the KH750, but so far regular rca-xlr cables are doing fine. Though I almost consider an upgrade to the A90 just to have a real switch for output select (no, it's not worth the $ for a d90se/a90 combo just for the switch).
 
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