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Aune T1 USB Tube DAC+Amp Discussion Thread ***See first post for FAQ*** - Page 366

post #5476 of 5999
Quote:
Originally Posted by steffinger92 View Post
 

 

I did some extensive tube buying on eBay these weeks and I even got a 'rocket logo' for 5€ (50% of it shipping). It's funny though, E88CC - especially Valvo and Telefunken - will fetch much higher prices than, say, PCC88 (which are exchangeable for the T1 and I guess most other applications of this sort). eBay is all but logical.

The other day I got one Mullard (with Lorenz print) and two Valvo PCC88 (all tested 'good') for all together 10$. Never thought I would. :D

 

eBay just requires time... :popcorn:

Watch the PCC88... it doesn't always work in the T1. (A lot of reports of distortion among different PCC88's that you can read on this thread). That may be why it's cheaper...

 

I find the Siemens E88CC has deeper bass than the Amperex 7308 PQ I have. The Amperex has richer, more refined mids which I usually prefer, just slightly. The E88CC does a wonderful job on sparkling, extended highs. Also I find it produces a depth in my music that the Amperex doesn't quite achieve... almost like being in a deep ocean of sound.

 

Hope the PCC88's work for you! I will send you some eBay info by PM @Besdomny :etysmile:

post #5477 of 5999
Quote:
Originally Posted by mikoss View Post
 

Watch the PCC88... it doesn't always work in the T1. (A lot of reports of distortion among different PCC88's that you can read on this thread). That may be why it's cheaper...

 

Yes I've read about that. But I just follow the strategy to buy a couple of these tubes very cheaply and then I'll just try them. Maybe I'm lucky and get a good one, maybe not. And then I'll just sell them again and end up paying a few € for postage.

post #5478 of 5999

So since I do not have the time to read through 366 pages, is this still one of the better budget ($150-200) choices to drive HD600's?

post #5479 of 5999
Why not search for HD600 in this thread...?
post #5480 of 5999
Quote:
Originally Posted by Mormonsloot View Post
 

So since I do not have the time to read through 366 pages, is this still one of the better budget ($150-200) choices to drive HD600's?

I've never used it with the HD600, but I find the T1 lacking in just driving my 32ohm M-100 on 0 gain. I run RCA cables out to either my FiiO E17 or E9 as I prefer the amps in those more. The T1 amp sounds a bit dull and lacking in dynamics to my ears. My anchor tube is a 1969 Holland Amperex OG 6DJ8.

post #5481 of 5999

Well I will tell you I am running 32 ohm headphones into the T1 with the gain all the way up, haha.

post #5482 of 5999
Your ears must bleed.

I run my HD-650s at +16db gain at maybe 1/4 volume. (6 dots up). This is plenty loud for me...

Oh edit for everything on the computer at full volume, feeding the DAC.
post #5483 of 5999

The impedance might be low at 32 Ohm, but the sensitivity might be low as well so you'll need to either crank the volume up or dial the gain up to get your preferred volume.

post #5484 of 5999
Supposed output impedance is 10ohm. Going by impedance matching w/ factor of 8, you'll want to run 80+ ohm hps. 32 is mismatching which might be an issue w/ driving them.

E: When I do run from the HP out directly (T90@250 ohm and T1@600 ohm), I can do 0 gain and about halfway and they run fine.
Edited by MrEleventy - 6/27/14 at 9:24am
post #5485 of 5999
Quote:
Originally Posted by MrEleventy View Post

Supposed output impedance is 10ohm. Going by impedance matching w/ factor of 8, you'll want to run 80+ ohm hps. 32 is mismatching which might be an issue w/ driving them.

E: When I do run from the HP out directly (T90@250 ohm and T1@600 ohm), I can do 0 gain and about halfway and they run fine.

 

Thats what I was thinking.  Assume this does at the very least a decent job w/ high impedance cans, especially for the price.

post #5486 of 5999
I love it as a dac. Amp wise, it's ok IMO. I've used it to drive HD600s before but I still prefer outputting into a seperate amp. I would get the Aune T1 if I was expecting to get an amp also. If I can only have an all in one unit... I'd get an Audio GD.
post #5487 of 5999
Quote:
Originally Posted by mikoss View Post

Watch the PCC88... it doesn't always work in the T1. (A lot of reports of distortion among different PCC88's that you can read on this thread). That may be why it's cheaper...

@CoiL just PM'd asking if I'd confused PCC88's with PCC85's, which I completely did. Sorry, the PCC88s just use different heater voltages... They should work fine with no distortion; glad you're able to get them cheap!

Also thanks for the PM @CoiL. biggrin.gif don't want to mislead anyone.
post #5488 of 5999

Is the amperex 7308 a bit much for my first tube? I'm looking for punchy bass. Perhaps the much cheaper rocket for starters?

post #5489 of 5999
So at last my new tubes is safely in my hand. But.... as I'm currently traveling, I wouldn't able to give any comment on how they sound until Wednesday at least.

RTC labeled Philips ECC189, HP labeled Amperex 6DJ8 / ECC88 and Philips PCC88. I guess all will have similar sound since they were all amperex made?
Pretty cheap, totaled 50 Euro after all tax and delivery cost.

ps: sorry for the pic quality. Dark room and crappy phone camera = grainy low quality pic.
Edited by jipan - 6/28/14 at 4:46am
post #5490 of 5999

Hey guys, whats up? 

 

So its about damn time i upgraded the stock tubes on my T1.. i have been using the stock tubes ever since i got the T1 :D

 

im looking for tubes that are bassy and have warm mids that fit the T1 without any mods, budget isn't really a problem.

 

Suggestions?

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