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Aune T1 USB Tube DAC+Amp Discussion Thread ***See first post for FAQ*** - Page 238

post #3556 of 5630

Any linux users out there? I started using a player called DeaDBeef (not so enamoured of the name). It allows me to select the ALSA output plug-in and the DigiHug USB output device. So I think I'm going straight to ALSA and then to the T1's driver with no intervening pulseaudio, etc. My T1 never sounded better. I think this addresses the issue raised by CoiL with pulseaudio possibly downsampling before the device driver.  DeaDBeef is very lightweight, so far I like it.

 

Here are some installation instructions for Ubuntu which worked fine for me:

 

http://ubuntuhandbook.org/index.php/2013/09/install-deadbeef-player-ubuntu/

post #3557 of 5630
Quote:
Originally Posted by Salvatore View Post
 

 

Usually those A-frames have dimpled disc getter and single legs have halo getter. Dimpled disc is a solid disc with small dimples on it and halo getter is just a metallic ring. In my understanding the A-frames are more modern invention (late 60's / early 70's). They were designed to provide stronger support and make the tubes less susceptible to microphonics. The single legs should be older and rarer. According to Coil's impressions the single legs are also superior in sound. PQ = premium quality = longer life.

 

Hi.. yes, I'm a bit confuse on that getter part. Sorry,,, Mine single leg is dimpled disc for sure, so on the other two. According to my ear, no different for those 3 tubes. But I rarely spend time comparing them. Plus, I'm newb so maybe I can't detect that. BTW sir, what do you think the other tube is?

post #3558 of 5630

:beerchug:Double...

 

 


Edited by diaBoliQu3 - 12/15/13 at 3:02pm
post #3559 of 5630
Quote:
Originally Posted by dana789 View Post
 

Any linux users out there? I started using a player called DeaDBeef (not so enamoured of the name). It allows me to select the ALSA output plug-in and the DigiHug USB output device. So I think I'm going straight to ALSA and then to the T1's driver with no intervening pulseaudio, etc. My T1 never sounded better. I think this addresses the issue raised by CoiL with pulseaudio possibly downsampling before the device driver.  DeaDBeef is very lightweight, so far I like it.

 

Here are some installation instructions for Ubuntu which worked fine for me:

 

http://ubuntuhandbook.org/index.php/2013/09/install-deadbeef-player-ubuntu/

Easier and wider spread option would be Clementine which works well with ALSA. But there are many different players supporting ALSA, just don`t forget to kill pulseaudio from Ubuntu sound mixer.

post #3560 of 5630
post #3561 of 5630

I'm considering getting a T1 for my HE-400.  Even though some people have said that the T1 works well with it, I'm a bit confused because the T1 has an output impedance of 10ohms whereas the HE400 has 35ohm of impedance.  Shouldn't the HP have at least 8x the impedance of the output impedance of the amp to work well?  Also I'm confused at how a DAC would use a tube to color its sound, since a DAC should only convert digital data into analogue, how would a tube change the way that works?

post #3562 of 5630
Quote:
Originally Posted by Za Warudo View Post
 

I'm considering getting a T1 for my HE-400.  Even though some people have said that the T1 works well with it, I'm a bit confused because the T1 has an output impedance of 10ohms whereas the HE400 has 35ohm of impedance.  Shouldn't the HP have at least 8x the impedance of the output impedance of the amp to work well?  Also I'm confused at how a DAC would use a tube to color its sound, since a DAC should only convert digital data into analogue, how would a tube change the way that works?

In my opinion, don't. It might be decent with an HE-400 but it is absolutely horrible with my Fostex T50RP (low impedance ortho). You'll be better off looking somewhere else.

 

No idea on the 8x factor though.

 

A DAC changes from digital to analog, as you've said. But each tube is different and has an effect on the sound, this effect is called colouration, because the tubes add something that wasn't originally there. A tube changes the sound as it flows through it. Since it isn't a tube amp, the sound should isn't affected by the tubes in an amp(From what my limited research tells me)

 

Colouring has nothing to with how can a tube in a DAC colour a sound, even an attenuator or a cable can cause colouration imo.

 

Mind you, I might be wrong.

post #3563 of 5630

I'm sorry if this was posted somewhere else earlier but I am not planning on reading 200+ pages of this thread before posting.  

 

I am wondering where I can buy a single Tungsram PCC88/7DJ8 tube.  I have read a bit about the difference between this one and the EH (rocket) tube.  I think I prefer this one, but if someone else believes that the EH is better with electronic music, I would love to hear about it.  

 

I want to make my first roll, and mainly listen to electronic music.  I think one of these would be best and I am currently leaning towards the Tungsram.  

 

Thanks!

post #3564 of 5630
Quote:
Originally Posted by slovetro View Post
 

I'm sorry if this was posted somewhere else earlier but I am not planning on reading 200+ pages of this thread before posting.  

 

I am wondering where I can buy a single Tungsram PCC88/7DJ8 tube.  I have read a bit about the difference between this one and the EH (rocket) tube.  I think I prefer this one, but if someone else believes that the EH is better with electronic music, I would love to hear about it.  

 

I want to make my first roll, and mainly listen to electronic music.  I think one of these would be best and I am currently leaning towards the Tungsram.  

 

Thanks!

http://www.ebay.co.uk/itm/2-x-PCC88-7DJ8-PCC-88-TUNGSRAM-NOS-NEW-OWN-BOX-/370951275170?pt=DE_TV_Video_Audio_Elektronenr%C3%B6hren_Valves&hash=item565e6b42a2

 

http://www.ebay.co.uk/itm/TUNGSRAM-PCC88-tubes-NOS-2-pcs-/261291116521?pt=Vintage_Electronics_R2&hash=item3cd62a07e9


Edited by isendono - 12/17/13 at 9:23am
post #3565 of 5630
Thank you! That helps and I will probably buy that.

Two questions though: are tubes always sold in pairs? And if so, why?

And, if I do have to buy the pair, is there anyone in the Arizona/southern California area who would want to split this purchase with me?
post #3566 of 5630

Is Aune T1 owners manual posted anywhere online?  I've searched but have been unable to find it.  I'm looking for iMac 27" (10.6.8) setup instructions.  Right now the T1 is connected via USB, but the keyboard volume controls still change the level of sound coming out of the T1, so it seems like it is going through an internal DAC/ADC cycle within the iMac before it sends the output to the T1. 

post #3567 of 5630
Quote:
Originally Posted by slovetro View Post

Thank you! That helps and I will probably buy that.

Two questions though: are tubes always sold in pairs? And if so, why?

And, if I do have to buy the pair, is there anyone in the Arizona/southern California area who would want to split this purchase with me?

 

If you use search, then I have given many comments about Tungsram PCC88. Indeed it`s good with electronic music and has better bass & kick than stock 6922EH.

But since you are located in US I recommend you to get JAN Sylvania 6922 green label. It has also great soundstage, great bass & kick and mids are better than Tungsram.

JAN Sylvania 6922 is second best tube I have for electronic music after Miniwatt-Dario ECC189. Also that Sylvania is much better when vocals come into play with EDM.

Here is one good offer: http://www.ebay.com/itm/6922-Sylvania-Electronic-Tubes-/251024184077?pt=LH_DefaultDomain_0&hash=item3a7235130d

 

 

Quote:
Originally Posted by pjp1 View Post
 

Is Aune T1 owners manual posted anywhere online?  I've searched but have been unable to find it. 

Please read 1st post useful info by Salvatore! But I think you can`t find any useful info about setting up T1 with Mac from there.


Edited by CoiL - 12/17/13 at 11:11am
post #3568 of 5630
Quote:
Originally Posted by CoiL View Post
 

 

Please read 1st post useful info by Salvatore! But I think you can`t find any useful info about setting up T1 with Mac from there.

 

Thanks -- I had read the first post before posting at all in this thread, but missed the link to Salvatore's post.  Good info there and good to see the manual.  As you predicted, still no joy in Mudville regarding the iMac setup though.

post #3569 of 5630

For linux users....

 

I think that DeaDBeef completely bypassed pulseaudio, so I don't need to remove it. Maybe some other apps will want to use it. If I kill pulseaudio while I'm playing music with DeaDBeef to the T1 via ALSA, I do not hear any kind of glitch. The pulseaudio daemon restarts, but since I don't hear a bobble or glitch of any kind I think pulseaudio is out of the picture.

post #3570 of 5630
My noob question: so I have the T1 connected to my pc via usb and line level output connected to jbl lsr305 speakers. The volume pot on the T1 only controls the volume of the headphone but not line output. So I'm just wondering, instead of adjusting the volume knobs on the back of the speakers, can I adjust the volume in foobar without loosing SQ?
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