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Aune T1 USB Tube DAC+ SS Amp Discussion Thread ***See first post for FAQ--Updated on 02/14/15*** - Page 317

post #4741 of 8013

Not sure if this was already mentioned, but the Aune T1 works just great when connected to my android smartphone LG G2 running Carbon Rom (OTG cable)

post #4742 of 8013

Sorry if this was already mentioned somewhere, but when I have both headphones and speakers connected, are the speakers muted? Or is there a switch for selecting the output?

post #4743 of 8013
Quote:
Originally Posted by Daynova View Post
 

Sorry if this was already mentioned somewhere, but when I have both headphones and speakers connected, are the speakers muted? Or is there a switch for selecting the output?

No, speakers arent muted. You can only mute them on your amplifier, or mute the headphone with the volume knob

post #4744 of 8013
Quote:
Originally Posted by BaTou069 View Post
 

No, speakers arent muted. You can only mute them on your amplifier, or mute the headphone with the volume knob

That's too bad. I have the Audioengine A2 and the volume knob is unfortunately on the back, so not that convenient to reach. Thanks for letting me know!

post #4745 of 8013

I received my Aune T1 last week with the 6922 stock tube, and I'm interested in buying 2 different tubes. 

While reading about posted reviews here and checking out some online stores, I found something I don't understand, maybe someone can explain the difference, for example:

 

http://tctubes.com/Amperex-6922-E88CC-PQ-gold-pins.aspx

 

$30 difference between tests as new and tests as new phono grade...

 

What is phono grade? Does it make a difference in use as a buffer? And what do they mean with tested an new at all?

 

 

 

 

Another question to HE-400 owners: What gain settings do you use?

 

 

Thanks


Edited by BaTou069 - 2/25/14 at 1:30pm
post #4746 of 8013
Quote:
Originally Posted by BaTou069 View Post
 

$30 difference between tests as new and tests as new phono grade...

 

What is phono grade? Does it make a difference in use as a buffer? And what do they mean with tested an new at all?

 

Tubes have grading system depending on the noise they make and I believe phono grade is the quietest one. Many members here have bought driver grade tubes and are happy with the performance. My opinion is you don't need phono grade tubes in T1.

 

 

Check these links out if you are interested to know more about tube testing:

 

http://www.wikihow.com/Find-out-if-an-Electronic-Tube-Is-Good

http://www.radiolaguy.com/info/TubeTesting.htm

http://www.tubeaudiostore.com/tubmatdem.html

post #4747 of 8013
Quote:
Originally Posted by Salvatore View Post

Tubes have grading system depending on the noise they make and I believe phono grade is the quietest one. Many members here have bought driver grade tubes and are happy with the performance. My opinion is you don't need phono grade tubes in T1.


Check these links out if you are interested to know more about tube testing:

http://www.wikihow.com/Find-out-if-an-Electronic-Tube-Is-Good
http://www.radiolaguy.com/info/TubeTesting.htm
http://www.tubeaudiostore.com/tubmatdem.html

Listening to driver grade 7308 on the T1 right now. Sounds great! This grade is a big saving over the more premium grades and just as good for this application.
post #4748 of 8013

my T1 has been out of commission for three days now waiting on this to arrive in the mail.  Once I put the headphone coupling caps on for some reason I couldn't get the board back in the chassis so I took it out and had to desolder the switch which came out perfect but I guess the USB B Jack got too hot because one of the pin pulled out during desoldering and I'm talking about this by the way:

 

post #4749 of 8013

I've got my Aune for about one month and I really love it. I bought a variety of tubes for it.

 

http://i.imgur.com/ty5r6s0.jpg

 

The Siemens E88CC were my favorite until I bought the Valvo E188CC for a reasonable price. This thing will stay in my T1. The ECC85 were a bad choice. 3 of the 4 don't really work in the T1.

 

Maybe I'll write a full-fledged review of every tube later. I'm still waiting for another two tubes.

post #4750 of 8013
Quote:
Originally Posted by ElBartoME View Post
 

The ECC85 were a bad choice.

 

I have 2 ECC85 tubes and I do not like either of them, although one did sound a little better than the other. At any rate, I too have a Siemens tube which I enoy. I think it's an ECC189.

 

My girlfriend's father has lots of tubes he's collected over the years from being involved in radio and television and I managed to find an Amperex Bugle boy that appears to be in great condition- I like this tube as well. He's got many more, so I'll have to head back over and see what else I can find that'll fit the T1.

post #4751 of 8013

Funny, I use an Mullard-IEC ECC85 and love it. Much better then stock 6922 EH. However, I got a couple of GE german made ECC85 and did not particularly care for them.

post #4752 of 8013

I'm not sure what the deal is with my ECC85. 3 of them sound really horrible. Completely distorted. Only the 4th one works and it does quite well. The 4th one does have a gray shield and another type of getter than the rest. It also looks completely new.

 

I think it's time to change the capacitors in my T1...

post #4753 of 8013

Did you clean the pins? As per one of the more knowledgeable tube users on this thread, I had to clean every single NOS tube I ordered. They all sounded like a crackled mess out of the box. All I did was the eraser trick with some rubbing alcohol for good measure and it worked pretty well. I actually got lazy and one of mu GE's still hasn't been cleaned good enough or is just not fully functional.

I am getting the urge to try some Telefunken, despite not being well represented in this thread.


Quick question to one of the tube guru's that are in this thread: I have noticed you say RCA branded Siemens, etc. How do you know it is a Siemans rebranded and not simply an RCA? I've seen some that claim this yet I don't see anything different about them. Possibly the etched on codes?

post #4754 of 8013
Quote:
Originally Posted by ElBartoME View Post
 

I've got my Aune for about one month and I really love it. I bought a variety of tubes for it.

 

http://i.imgur.com/ty5r6s0.jpg

 

The Siemens E88CC were my favorite until I bought the Valvo E188CC for a reasonable price. This thing will stay in my T1. The ECC85 were a bad choice. 3 of the 4 don't really work in the T1.

 

Maybe I'll write a full-fledged review of every tube later. I'm still waiting for another two tubes.

 

Can you provide a brief insight into the Valvo E188CC? How is the bass on it? I have heard good things on that tube but haven't read many in depth reviews on it other than that it sounds really good. 

post #4755 of 8013
Quote:
Originally Posted by eastpac View Post
 

 

Can you provide a brief insight into the Valvo E188CC? How is the bass on it? I have heard good things on that tube but haven't read many in depth reviews on it other than that it sounds really good. 

 

To be honest my E88CC Siemens A64G (single stage disc getter) is a little bit bass heavier than the Valvo E188CC ⊿9F1. But I like the Valvo more because it is much more balanced. The soundstage is much wider too. Everything feels more alive.

 

BTW, i'm using the DT770 Pro 80 Ohms


Edited by ElBartoME - 3/2/14 at 8:19am
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