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Shanling UA2 Aborted Review (DAC & Amp)

amirm

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This is an "aborted" review of the Shanling UA2 portable DAC and headphone amplifier "dongle" (adapter). It is on kind loan from a member and costs US $85.

The UA2 looks like any other dongle except that it has an unusual button to change USB mode from 1 to 2:

Shanling UA2 Review DAC and Headphone portable amplifier.jpg


It has both balanced (2.5mm) and unbalanced (3.5mm) outputs which is nice.

The reason this is an aborted review is that no matter what I did, I could not get anything close to the rated output:

Shanling UA2 Measurements DAC and Headphone portable amplifier.png


Switching to balanced out doubled this to just 0.1 volt.

Playing with Windows volume control would make a difference between zero and roughly 50% but nothing above that. I hooked up a Sennheiser HD650 to it to make sure there is no instrumentation error and same low volume issue persisted there.

Not sure if this is a firmware bug/regression or broken device. I have had fair number of requests to test this device so I thought I post this just in case others run into the same issue.

I will be on the look out for another one to test and should those results be different, I will update this review. For now, this is just an "FYI."
 
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amirm

amirm

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I hear you. I have been having really bad luck with stuff that doesn't work the last few months. I go through all the effort but nothing to show for it....
 

BillH

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While some may view this review as a non-review, I think it is useful that you established the unit doesn't work "out of the box" the way most of us will use it.
thanks for the effort.
 

xarkkon

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amirm

amirm

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FlyingK

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UA2 has a companion app for Android where you can adjust gain / output levels. If the owner uses IEMs I could see him turning down the output:

UA2.png
 

Jim Taylor

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I hear you. I have been having really bad luck with stuff that doesn't work the last few months. I go through all the effort but nothing to show for it....

I'm sure you realize, @amirm, that the rough percentage of troubles that you have with equipment is probably the same rough percentage of troubles that the general public has with equipment? Now you know why some people rely on this site so much.

Thank you for your time and trouble. Jim
 

3125b

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On the bright side though we now know the 50mV SINAD is some 10dB worse than the Apple dongle :)
 

vkvedam

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So much effort to get to rescue this, wondering why :rolleyes:
 

Tks

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UAC1 toggle? Wonder if it has to do with getting the PS5 to recognize it as an external sound device. UAC2 isnt supported which is the majority of devices out on the market.
 
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