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Aune X1s GT Review (DAC & Amp)

Rate this product:

  • Poor (headless panther)

    Votes: 7 4.4%
  • Not terrible (postman panther)

    Votes: 40 25.2%
  • Fine (happy panther)

    Votes: 101 63.5%
  • Great (golfing panther)

    Votes: 11 6.9%

  • Total voters
    159

PenguinMusic

Senior Member
Joined
Dec 20, 2019
Messages
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Hi Jupiter,

At this point I think there are only few options left.

First thing, if you look up, you'll see an AUNE official replied here. Maybe send him a MP and see if he/she can help.

Second thing : if you can, return product to dealer. If you bought it from a store, go there with the DAC and show them the problem.

Hope you'll be able to sort this out.

Regards.
 

Júpiter

Member
Joined
Jan 8, 2022
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Location
Costa Brava
As other users have experienced the same, AUNE has responded to me in other forum to explain where's the issue.Something weird related to the mode filter 3 and 4...still I don't get it, but already a step forward.
Now matters get diferent as is a general issue, not a singular unit problem.
At the very least we know whtat's going on...


Regards.
 

LTig

Major Contributor
Forum Donor
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Feb 27, 2019
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I think the reason why you see the slow rampup only once with coax is that the sample stream is not interrupted even when pausing playback (the players Spdif chip just sends zero PCM values). In USB mode it seems the DAC clears the stream buffer with each new song.
 

Júpiter

Member
Joined
Jan 8, 2022
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Location
Costa Brava
Thank you for your explanation, LTig.
Aune said to me:
"Hi, the phenomenon you stated seems to be the result of filter mode 3 and 4, which need more time for the PLL to lock (They have higher requirement for clock). After the lock, the volume will come to normal. If that is a problem to you, please try setting filter mode to 1 or 2, and see if that works:)"

And that's it.
So the 3 and 4 mode filters, called "pure mode (general)" & "pure mode (headphone)" don't work properly with USB input.Then i am doomed to use mode filter 1 or 2 called "standar mode (general)" & "standar mode (headphone)".
Whatever the reason is, I hope for a better solution from Aune than "don't use those filters..." since this is an engineering fault.That's all I know at this moment.
We'll see.
Regards.
 

PenguinMusic

Senior Member
Joined
Dec 20, 2019
Messages
486
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221
Hi Jupiter,

As I understand it, there are 4 filters in the AUNE X1s DAC and 2 of those filters do not work as you hoped them to work.
I can understand your frustration...

My question is following (and that is to all the guys in here with much better technical skills than mine) : is the explanation from AUNE something that reveals a technical constraint for USB input, or is it a technical choice and thus a real engineering fault ?
I assume they could have placed something like a "buffer" while the PLL locks ?

The second question (and that is more directly for you Jupiter) : once the PLL is locked (whatever that means) and you have volume as it is intended to be, do you hear a difference between the several filters ?
I am asking because, as far as I am concerned, I find it really difficult to hear a difference between the filters.
If there is an audible difference, I must say that, to my ears, it is more than subtle...

Of course, I understand that you paid for a device that offers 4 filters and that you expect to have 4 working filters.
I am just saying this in case you can not return the device, to ease the fact that you will probably be able to live with that...

But of course if you can, I would advise to return the device.
Because even if you like the sound there will always be that little frustration that will then tell you to change it earlier than you expect.
 

verde57

New Member
Joined
Jul 29, 2020
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0
Listening with headphones I hear no difference between the filters.
but
Zeos who reviewed the GT said listening with speakers there is a more clear difference between the filters.
 

Veri

Master Contributor
Joined
Feb 6, 2018
Messages
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10,021
At all owners, about the volume knob. Does it have a "start" and "end" point? I can keep turning and the start/stop point just moves along. VERY weird knob. Is this "normal"?
 

Veri

Master Contributor
Joined
Feb 6, 2018
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maybe a broken knob
Yeah I think so. It is loose at both ends and there's no actual MIN / MAX. Sigh. Can't imagine that to be the norm. This unit also seems to lose lock on data using rates higher than 44.1/48kHz, after which it re-initiates data sync alongside a loud POP noise. I think they sent me a total lemon. Back to amazon it goes .... and this is on default filter 1, not using filter 3/4 with stronger PLL.

The 15 minutes I listened to it it sounded quite nice, pretty strong power output on 1/4inch for HD6-- Sennheiser series, I imagine 4.4mm is only necessary for very needy cans like expensive planars.
 
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