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Aune T1 USB Tube DAC+Amp Discussion Thread ***See first post for FAQ*** - Page 397

post #5941 of 5953

Hi all,

 

first time poster in this thread, been lurking for a while.

 

Been using my T1 with stock usb cable from my pc with Corsair SP2500 speakers.

 

So after using my T1 for a year, I decided to test some tube rolling from the stock EH 6922.

 

Bought Amperex Bugle Boy from some random seller in ebay  (http://www.ebay.com/itm/251612751013)

 

They arrived a couple of days ago. Sounded wider / more airy / more open in the highs / but lacking in the bass compared to stock EH 6922 to my ears.

 

Maybe I'm just too used to stock sound, but kinda feel like I need moar bass, I like the wider soundstage and all, but need more oomph from the bass (I guess I am a basshead, just didnt realize it, lol)

 

Not saying the bugle boy is inferior, just different sound sig from stock, more detailed, etc.

 

So I spend today browsing this thread / google / ebay, trying to find which tube to get next. Almost pulled the trigger on Genalex, but finally decided to get the more expensive Amperex 7308 from upscaleaudio.com.

 

Have any of you tried this Amperex 7308 ? How does it sound ?

post #5942 of 5953

Those are known to be great tubes, the Holland made Amperex Bugle Boys.  You did pay a little extra for a "matched" pair, but that is still a good price. 

 

The Bugle Boys you may be thinking of though are the 6992 (E88CC) tubes such as these:

 

http://www.ebay.com/itm/2-matched-1966-Heerlen-Amperex-Bugle-Boy-6DJ8-ECC88-tubes-Top-O-Getter-Gray-P-/361049107421?pt=Vintage_Electronics_R2&hash=item5410342bdd

 

Those are the ones that go for the same price as 1960's Siemens 6992 tubes that are made in Germany (possible CCa candidates)

 

However I am sure those sound MUCH better than the stock tube, I actually have no doubt about that, lol.  If you want tubes with a different signature look at GE Smokies or a more defined tube is like mine (Siemens 6992), however a tube like mine lacks the bass that yours have, this can be an advantage if your tubes are bass heavy.

post #5943 of 5953

Just bought a T1 from someone on here a few days ago. Trying to get my hands on as many tubes as I can right now without spending too much. So far I've tried OG Amperex 6DJ8, EH 6922, German GE ECC86. My favorite so far though is one I haven't seen mentioned at all, OG Amperex 6BQ7A. It was only $4 shipped too. 

post #5944 of 5953
Quote:
Originally Posted by meowmix4jo View Post
 

Just bought a T1 from someone on here a few days ago. Trying to get my hands on as many tubes as I can right now without spending too much. So far I've tried OG Amperex 6DJ8, EH 6922, German GE ECC86. My favorite so far though is one I haven't seen mentioned at all, OG Amperex 6BQ7A. It was only $4 shipped too. 

That's not one of the tubes I see on the T1's compatibility list. You can confirm that it works without any problems?

post #5945 of 5953
Quote:
Originally Posted by SpiderNhan View Post
 

That's not one of the tubes I see on the T1's compatibility list. You can confirm that it works without any problems?

 

It's on lwrs10's 100% compatibility list which is why I bought it.

 

http://www.head-fi.org/t/633006/aune-t1-usb-tube-dac-amp-discussion-thread-see-first-post-for-faq/4200#post_10162534

 

Only used it around 10 hours so far but works perfect so far.

post #5946 of 5953
Quote:
Originally Posted by meowmix4jo View Post
 

 

It's on lwrs10's 100% compatibility list which is why I bought it.

 

http://www.head-fi.org/t/633006/aune-t1-usb-tube-dac-amp-discussion-thread-see-first-post-for-faq/4200#post_10162534

 

Only used it around 10 hours so far but works perfect so far.

Thanks. I have the Amperex OG 6DJ8 and you think the 6BQA7 sounds better? Wow. Sign me up!

post #5947 of 5953
Quote:
Originally Posted by SpiderNhan View Post
 

Thanks. I have the Amperex OG 6DJ8 and you think the 6BQA7 sounds better? Wow. Sign me up!

 

I wouldn't say it's better, it's just different. I listen to a lot of Jazz/Jazz-Pop and I definitely think it sounds better than the 6DJ8 for that, but there are things that sound better with the 6DJ8. Either way at ~$5 I'd say it's at least worth checking out which is the only reason I bought it since I'd never heard of it before.

post #5948 of 5953
Quote:
Originally Posted by meowmix4jo View Post

Just bought a T1 from someone on here a few days ago. Trying to get my hands on as many tubes as I can right now without spending too much. So far I've tried OG Amperex 6DJ8, EH 6922, German GE ECC86. My favorite so far though is one I haven't seen mentioned at all, OG Amperex 6BQ7A. It was only $4 shipped too. 

Is this it ? >> http://www.ebay.com/itm/NOS-Amperex-6BQ7A-6BZ7-Grayplates-Vacuum-Tube-Electron-Radio-Vintage-w-o-box-/221530139981?
post #5949 of 5953

 

The label on mine is slightly different, has the model number beside the logo instead of above it. Everything else including internals looks identical though.

post #5950 of 5953
Aune doesn't take ECC82 /12AU7 tube does it?
post #5951 of 5953
Quote:
Originally Posted by DMax99 View Post

Aune doesn't take ECC82 /12AU7 tube does it?

 

It will with an adapter, haven't tried it myself but lwrs10 has it listed in his post as working.

 

To run 12au7 on 6.3v you need to short pins 4+5 and use the shorted pins + pin 9 where the heater core pins are on 6922. Pin 9 on the 6922 end will end up unused.

post #5952 of 5953
Quote:
Originally Posted by meowmix4jo View Post

It will with an adapter, haven't tried it myself but lwrs10 has it listed in his post as working.

To run 12au7 on 6.3v you need to short pins 4+5 and use the shorted pins + pin 9 where the heater core pins are on 6922. Pin 9 on the 6922 end will end up unused.

So will it damage the aune if I don't use anymore adapter?
post #5953 of 5953
The tubes are not cheap. OMG.
I just ordered my Aune T1 and I'm looking forward to buy another tube.

May I know what tubes is good for HiFiMan HE400 headphones? I listen to slow music, jazz and country.

Any links on website should I look into it to purchase NOS tubes as brand new one is too expensive.
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