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Aune T1 USB Tube DAC+Amp Discussion Thread ***See first post for FAQ*** - Page 154

post #2296 of 5552

Yeah definitely the tube. I've had several similar cases. Distorted rattling uneven sound.

post #2297 of 5552
I have the same problem currently, also from the left channel. The tube needs to be very hot before the distortion goes away. I cover it with a beanie so the heat stays, but it heats up the whole unit.

Currently waiting for a replacement tube.
post #2298 of 5552
Quote:
Originally Posted by Devmoo View Post


And can anybody reccomend some easy to get, great sounding tubes for under 60$ that I can get in Canada.

This is the Amperex 7308 I got from Upscale Audio. It cost $50 USD (about $52 Canadian, I think) for a Driver Grade NOS tube and it sounds beautiful. http://www.upscaleaudio.com/products/Amperex-7308-vintage-gold-pin%21.html Unfortunately I don't know what Upscale charges for "international" shipping. I understand it is outrageous to the Euro zone, but it may not be bad to Canada (I hope).

I have the 6922 EH which came with my T1 but is sold pretty cheaply from this place (good but not near the Amperex, http://www.boiaudioworks.com/6dj8 They also offer Teslas which have had some good reviews on this thread. You may want to search this thread for reviews. Once again, I don't know postage costs. Good luck in your search.
Edited by teb1013 - 7/12/13 at 5:08pm
post #2299 of 5552

Tube socket protector arrived in 2 days, and on a Saturday no less.  Very impressed with that.  I'm not entirely sure of the purpose of this, though- It's supposed to protect the socket, but it still jiggles about when replacing tubes.  And I'm not sure how it can improve sound quality when it still plugs into the original socket, and doesn't replace it.

But if it is protecting it in some way, then it's worth the purchase. 

post #2300 of 5552
Quote:
Originally Posted by Magirush View Post



Tube socket protector arrived in 2 days, and on a Saturday no less.  Very impressed with that.  I'm not entirely sure of the purpose of this, though- It's supposed to protect the socket, but it still jiggles about when replacing tubes.  And I'm not sure how it can improve sound quality when it still plugs into the original socket, and doesn't replace it.
But if it is protecting it in some way, then it's worth the purchase. 

Yeah, unless you're doing a bunch of rolling I don't see the point. I've never researched the reasons behind using socket savers but I do know that constant and repeated insertions will wear out the socket's friction tabs. When that happens it's no bueno. The tube pins stop making solid contact with the tabs and you get a bunch of symptoms in your audio.
As far as it making your audio better somehow... Unless your socket is already loose I call bullsh!t. It's introducing another resistance for the electricity to flow through. If anything it would negatively impact audio. Again that's if you're not experiencing issues related to loosened socket tabs.
post #2301 of 5552

I agree.

What I'm wondering now, is if it's possible to replace the actual aune tube socket.  Because if it is, then I don't have to worry about wear, as I can just replace the tube socket.

post #2302 of 5552
Quote:
Originally Posted by Magirush View Post

I agree.

What I'm wondering now, is if it's possible to replace the actual aune tube socket.  Because if it is, then I don't have to worry about wear, as I can just replace the tube socket.

Oh you definitely can. Tube sockets are quite inexpensive.

It only depends on whether you're proficient at desoldering and soldering. :)

post #2303 of 5552
Quote:
Originally Posted by inphu510n View Post

Yeah, unless you're doing a bunch of rolling I don't see the point. I've never researched the reasons behind using socket savers but I do know that constant and repeated insertions will wear out the socket's friction tabs. When that happens it's no bueno. The tube pins stop making solid contact with the tabs and you get a bunch of symptoms in your audio.
As far as it making your audio better somehow... Unless your socket is already loose I call bullsh!t. It's introducing another resistance for the electricity to flow through. If anything it would negatively impact audio. Again that's if you're not experiencing issues related to loosened socket tabs.

 

+1. I don't see the point either with T1. It's different story with Lyr, for example, because the socket saver lifts the socket insertion point higher and makes rolling way easier. If somebody says such savers improve sound quality I call it bs too.

post #2304 of 5552
Quote:
Originally Posted by Magirush View Post

It's supposed to protect the socket, but it still jiggles about when replacing tubes.  And I'm not sure how it can improve sound quality when it still plugs into the original socket, and doesn't replace it.

Quote:
Anti-vibration Base* is filled with silicone to reduce microphonics
 

     It`s supposed to jiggle. But it`s usefulness comes in play only in "moving" equipment like guitar amplifiers where the speaker cabinet makes the tubes "rattle" and microphonics come into play - thats what is meant by "improving" sound quality.

 

When you are crazy tuberoller (like I am I guess :D ) then it might save you original Aune T1 socket wear-out, thus you don`t have to open it to do desoldering and re-soldering new socket and helps to sell item "as new". Though you have to tube-roll a LOT to wear those pins out. For me socket saver is also pointless and since I`m certainly keeping my Aune T1 until it "dies" then I find easier to replace the original socket ;)

 

Edit: Anyone willing to give a try on these? Miniwatt-Dario ECC86 green label: http://www.ebay.co.uk/itm/1-TUBE-ECC86-MINIWATT-/111005245853?pt=FR_Image_Son_Vintage&hash=item19d86da19d

 

I have yellow label Miniwatt-Dario PCC189`s and ECC189 - they all are very good! Thinking about that green label to be my first ECC86.


Edited by CoiL - 7/14/13 at 12:05pm
post #2305 of 5552

Wow guys .. :( i'm so sad my Aune T1 tube is now completely broken. I get a TON of distortion and a bunch of crackling from the left channel in my ear phones.. I can say i'm quite dissapointed. I don't know what could have caused this so early on?!?! it's only been 2 months. Not even. Do you guys know what could have caused my tube to do this? I did move my t1 around to my moms and dads house. but only ONE time. I know it's not portable but i've been doing it very cautiously and safely. Unless it dropped when I was away for some odd reason I can't see why this happened to my tube. It was "The best ver" 6922-EH tube from Ebay. Yeah, some best tube. Now I can't use my T1 until I get a replacement tube. My dads going to wonder why it broke so quick. Can anybody suggest reasons why this could have happened? did I just get a unlucky tube or what? I'm trusting you guys that it's the tubes issue... I don't want to buy another one and find out it was the actual device . Is there ANY way to test the Aune and make sure it is the tubes issue, something you guys were saying like a bypass?

 

EDIT: http://www.thetubestore.com/Tubes/6922-E88CC-Tube-Types/6H23n-EB-6922 i'm thinking about getting this Tube, is it good and will it work?

 

Alright this is so weird.. now I just put this thing on and it seems to be fine, then it goes out when I move the T1, I pushed on the T1 a bit and it came back... are you guys sure it's the tube?


Edited by Devmoo - 7/15/13 at 12:57am
post #2306 of 5552
Quote:
Originally Posted by Devmoo View Post

Wow guys .. :( i'm so sad my Aune T1 tube is now completely broken. I get a TON of distortion and a bunch of crackling from the left channel in my ear phones.. I can say i'm quite dissapointed. I don't know what could have caused this so early on?!?! it's only been 2 months. Not even. Do you guys know what could have caused my tube to do this? I did move my t1 around to my moms and dads house. but only ONE time. I know it's not portable but i've been doing it very cautiously and safely. Unless it dropped when I was away for some odd reason I can't see why this happened to my tube. It was "The best ver" 6922-EH tube from Ebay. Yeah, some best tube. Now I can't use my T1 until I get a replacement tube. My dads going to wonder why it broke so quick. Can anybody suggest reasons why this could have happened? did I just get a unlucky tube or what? I'm trusting you guys that it's the tubes issue... I don't want to buy another one and find out it was the actual device . Is there ANY way to test the Aune and make sure it is the tubes issue, something you guys were saying like a bypass?

 

EDIT: http://www.thetubestore.com/Tubes/6922-E88CC-Tube-Types/6H23n-EB-6922 i'm thinking about getting this Tube, is it good and will it work?

 

So is it your T1 or tube that is broken? If EH is broken then it's only good for you because you should anyways get something better to replace that ;) Try to use your T1 without the tube and see if the SS part is ok. I've been taking my T1 to Helsinki and back without any problems whatsoever. Usually it's the tube that causes problems (I've had several defective). They are like light bulbs after all so there is no guaranteed life age. You might get 5000+ hours or just a couple of hours (if unlucky).

post #2307 of 5552

Can you tell me how to check the SS part please? Right now my only concern is that the T1 itself is okay. I don't mind buying another tube.


Edited by Devmoo - 7/15/13 at 1:15am
post #2308 of 5552
Quote:
Originally Posted by Devmoo View Post

Can you tell me how to check the SS part please? Right now my only concern is that the T1 itself is okay. I don't mind buying another tube.

Use the RCA line in jack from the back of the Aune T1 and it will bypass the tube buffer. The tube buffer only runs when you use it through USB as a DAC.

post #2309 of 5552
Quote:
Originally Posted by Devmoo View Post

Wow guys .. frown.gif i'm so sad my Aune T1 tube is now completely broken. I get a TON of distortion and a bunch of crackling from the left channel in my ear phones.. I can say i'm quite dissapointed. I don't know what could have caused this so early on?!?! it's only been 2 months. Not even. Do you guys know what could have caused my tube to do this? I did move my t1 around to my moms and dads house. but only ONE time. I know it's not portable but i've been doing it very cautiously and safely. Unless it dropped when I was away for some odd reason I can't see why this happened to my tube. It was "The best ver" 6922-EH tube from Ebay. Yeah, some best tube. Now I can't use my T1 until I get a replacement tube. My dads going to wonder why it broke so quick. Can anybody suggest reasons why this could have happened? did I just get a unlucky tube or what? I'm trusting you guys that it's the tubes issue... I don't want to buy another one and find out it was the actual device . Is there ANY way to test the Aune and make sure it is the tubes issue, something you guys were saying like a bypass?


EDIT: http://www.thetubestore.com/Tubes/6922-E88CC-Tube-Types/6H23n-EB-6922
 i'm thinking about getting this Tube, is it good and will it work?

Alright this is so weird.. now I just put this thing on and it seems to be fine, then it goes out when I move the T1, I pushed on the T1 a bit and it came back... are you guys sure it's the tube?

Hi. I've been having the exact same problem with my aune t1 as well, but on mine it's the right channel. It does get better as it gets warm, but there is still some crackling all the time. I have about 15 different tubes and they all are the same... My "solid state" part of the amp has no problems, so it's the "buffer" stage.
I've tried to open it to check for problems, but could not find anything. I think I'll try to go over it with my soldering iron, just to iron out any "cold solders". I'll also check with my voltmeter.

To me it sounds like you have the same problem as me. I also think there was a other user earlier with the same problem, and he had to send it back. Sorry...
Edited by McKajVah - 7/15/13 at 2:59am
post #2310 of 5552

Devmoo, if it`s still the tube problem I would not buy that 6N23-EB for that money. If you are short on money and you liked how 6922EH tube sounded (airy, big soundstage, sparkly highs and with "extended" bass), then I would get JJ E88CC or JAN-Philips from that store. Heck, since 6922EH is cheap, would even get this tube again. Although there are quite lot cases about 6922EH tubes being dead too soon. Well seems I have got good one. You could never know how your Aune T1 was handled during transport and it (or tube) might got damaged before and now you are having results of that. 

 

Btw, what music genre do you listen mostly? Then we can maybe recommend more proper sounding tube for you.

 

But if it`s not the tube problem, try send it back to seller if you still can and ask for replacement unit. Personally, I would open Aune and check for loose/bad soldering. Considering that the sound gets 100% ok when you move Aune a bit, then it could be just loose soldering. But first thing would be to sort out if its tube or not.

 

Edit:

Someone in this thread was comparing ELE EL-D01 USB DAC against Aune T1 and was saying it`s better than Aune T1. Well, after receiving my ELE DAC and comparing it against Aune T1 - no competition, Aune T1 is better.

But to be honest, ELE does very good job if considering the price around 15$. If you`re somebody who is not crazy about tiny details in audio and just want good sounding audio with cheap price & portability, then ELE is great choice!
 


Edited by CoiL - 7/15/13 at 7:51am
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