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Aune T1 USB Tube DAC+Amp Discussion Thread ***See first post for FAQ*** - Page 205

post #3061 of 5951
does anyone else notice how recessed the vocals are on the Aune T1 with the stock 6922EH? this is my first headphone amp and i do not consider myself an audiophile but with the stock tube, the vocals are so recessed that i end up turning the volume louder than necessary to hear the vocals. this gives me listening fatigue very quickly. headphones is a Shure SRH1840. as i mentioned, this is my first headphone amp and i have no prior experience with tubes. in the case of the Aune T1, what would be the best tubes for a better vocal range? Would it even make a big difference?
Edited by flipteg - 10/22/13 at 1:06pm
post #3062 of 5951
Amperex Orange Globe (6DJ8) for a cheap solution
Amperex 7308 being the expensive choice. Warms up the mids and pushes them forward a bit.
post #3063 of 5951
Quote:
Originally Posted by flipteg View Post

does anyone else notice how recessed the vocals are on the Aune T1 with the stock 6922EH? this is my first headphone amp and i do not consider myself an audiophile but with the stock tube, the vocals are so recessed that i end up turning the volume louder than necessary to hear the vocals. this gives me listening fatigue very quickly. headphones is a Shure SRH1840. as i mentioned, this is my first headphone amp and i have no prior experience with tubes. in the case of the Aune T1, what would be the best tubes for a better vocal range? Would it even make a big difference?

One question, are you using Aune T1 as AMP only or in AMP/DAC (tube buffered) mode? If you use it only in amp mode then tube wont take a part in audio chain. For tube you need to use USB input. 

 

But yeah, 6922 is only good for EDM, EAM music since it has large soundstage with sparkly highs and lot of air. If you want great vocals, go for Amperex 7308, Amperex orange globe 6dj8/ecc88 (Heerlen Holland), Siemens PCC88/7DJ8 (S & H München), Siemens PCC189/7ES8 (Mullard Blackburn), Ultron SQ PCC189 (Bharat India), Amperex orange globe 6gm8/ecc86 (Heerlen Holland), Mullard ECC88 (Heerlen Holland), Miniwatt-Dario PCC189 & ECC189 and some more options...

 

Maybe if you could give more exact description what else you feel need to be better, then I could recommend more precise.

 

Edit: 

Quote:
Originally Posted by CoiL View Post
 

Got my 4x PCC189 today. Haven`t tried them yet but will keep you updated. Factory codes are on pic:

 

The other Siemens PCC189 that I have talked about earlier in this thread (that sounded very good) is coded IP1 B7C3, so it`s different from those I got now.
The one I already had before is probably Mullard Blackburn but those "new" are Siemens & Halske München.

Sorry, misread those codes, #1 Valvo is IP2 delta1B3 and #2 Valvo is IP8 delta7A4.


Edited by CoiL - 10/22/13 at 2:16pm
post #3064 of 5951
what do you all think of the Genalex Gold Lion compared to my stock 6922? Amperex 7308 is a bit expensive. yes, i am using it as a DAC and amp for my computer.
post #3065 of 5951

Better get NOS Amperex orange globe 6DJ8/ECC88 if you are more into vocals, less expensive too.

post #3066 of 5951

In my setup (6922EH + Koss Pro 3aa) the low-end seems a little too fleshed out, almost to the point of overpowering the mids and highs. I really like the detail in the bass but I just wish it was a little 'quieter'. That said, I may have my gain controls in the wrong place, I don't really understand how to use those or how to adjust them to suit my headphones best. 

post #3067 of 5951

Paspie, only 2 pages back: http://www.head-fi.org/t/633006/aune-t1-usb-tube-dac-amp-discussion-thread-see-first-post-for-faq/3030#post_9898948

 

6922EH bass is extended, goes deep but is too loose. About mids, I think they are just laid back with this tube and large soundstage isn`t helping it either. Though, personally I think this tube sounds great with EDM & EAM.


Edited by CoiL - 10/23/13 at 1:36pm
post #3068 of 5951
Quote:
Originally Posted by MrEleventy View Post

Amperex Orange Globe (6DJ8) for a cheap solution
Amperex 7308 being the expensive choice. Warms up the mids and pushes them forward a bit.

Interestingly Upscale Audio charges $80 USD for the Amperex 6DJ8 and $75 for the Amperex 7308. The "driver grade" 7308 is $50, hardly cheap but a good saving on a great tube (the T1 works fine with Driver Grade). For those not in the US however, I gather that Upscale charges large amounts for international shipping.
Edited by teb1013 - 10/23/13 at 1:46pm
post #3069 of 5951

I really wish to get my hands & ears on 7308 to get an idea and give impressions vs. my best tubes. I hope I won`t be disappointed when I get that chance. 

Amperex 6DJ8 steel pin is actually very respected tube everywhere and that`s why they are selling it with that price I belive. It`s not rare tube but to get a high-grade one is getting harder and harder.

post #3070 of 5951

I can now add the Aune T1 to my signature, woo! My "sale" finally came through, proud to be a T1 owner with the rest of you!

post #3071 of 5951

Hey guys, where's the best place to buy tubes? Is vacuumtubes.net ok?  Also, does the T1 auto-bias (is it plug and play when changing tubes?)

 

Much appreciated.

post #3072 of 5951
+1, Dale at vacuumtubes.net is a great guy to deal with. I use ebay myself mostly because driver grade tubes are all you really need. No need for the higher grades.
post #3073 of 5951
Quote:
Originally Posted by MrEleventy View Post

+1, Dale at vacuumtubes.net is a great guy to deal with. I use ebay myself mostly because driver grade tubes are all you really need. No need for the higher grades.
Thank you! Do you know if the T1 auto-biases tubes (is it plug and play when changing tubes?)
post #3074 of 5951
It's plug and play. never changed any setting between tube rolls.
post #3075 of 5951

Does a tube amp still color the sound with headphones that don't need an amp?  I am wondering if I will see any benefit with my Sony MDR 7506 headphones.

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