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Aune T1 USB Tube DAC+Amp Discussion Thread ***See first post for FAQ*** - Page 376

post #5626 of 6465
Quote:
Originally Posted by MrEleventy View Post


I think it's mainly because it's on a port by itself. The T1 doesn't use the power portion of the USB port, just the data. It gets it's power from the wall wart. It might be picking up the noise/interference from the keyboard. Other ppl that use a powered usb hub, it's usually the only device on the hub.

E: As an aside; Ppl resort to powered usb hubs to avoid OS shenanigans where most modern OS will try to save as much power as possible by shutting or semi-powering the ports. Win Vista/7/8 and OS X are known culprits.

I guess it's the interference since T1 is wall plug power.

post #5627 of 6465

My T1 was just delivered back to Audiophonics in France, so it's time to cross fingers.

 

Also bought a nice set of tubes from stjj89. Looking forward to finally testing the T1.

post #5628 of 6465

Hi Folks:

I am highly motivated to sell my mildly used Aune T1, thinking of an upgrade and hence selling it. It is in MINT condition and comes with all accessories it came with including the box. Please check my signature for the thread.

 

Cheers!

post #5629 of 6465

Just got word from Audiophonics that I'll be getting a full refund. I already ordered a new T1 from the UK, should be here tomorrow and hopefully not DOA.

post #5630 of 6465

Glad to hear that your situation will soon be completely resolved to your satisfaction, reiserFS.

post #5631 of 6465

After getting my Amperex A frame orange globe, I noticed that decreasing down to 16 bit, going down to 44.1khz or increasing the gain any higher than 0 made me hear microphonics. I never had this problem with the genalex gold lion, is this because it has gold plated pins? And the normal orange globes show no problems

And its running much hotter!


Edited by manishex - 7/25/14 at 6:44pm
post #5632 of 6465

Disclaimer, I have no idea if that's normal for your tube because I've never tube rolled but having read through this thread cover to cover makes me feel like that's something normal between different tubes.

post #5633 of 6465
Quote:
Originally Posted by manishex View Post
 

After getting my Amperex A frame orange globe, I noticed that decreasing down to 16 bit, going down to 44.1khz or increasing the gain any higher than 0 made me hear microphonics. I never had this problem with the genalex gold lion, is this because it has gold plated pins? And the normal orange globes show no problems

And its running much hotter!

 

I am also running A-Frame Orange Globes (dated 1970), but I can't say I hear the distortions you are hearing when I play 16 bit or 44.1 khz music. I can't say anything about the gain because I've left it at zero for quite a while now. I think the tube running hot is normal though - at least, mine does.

post #5634 of 6465

Decided to play around with my tubes again, see if maybe time had fixed my GE ECC85/6AQ8 that I loved so much (it sounded absolutely amazing paired with my DT990s), got a big nope on that, so then I felt like I wanted to try something new so I ordered an ECC189 made in France as recommended earlier in the thread, and also bought another Holland 6AQ8 in the hopes that it'll work; third times the charm, right?

 

I really wonder what the hell it is that makes 6AQ8's not friendly to the T1, it certainly isn't the heater as the T1 is rated up to 3A...

 

Quote:
Originally Posted by manishex View Post
 

After getting my Amperex A frame orange globe, I noticed that decreasing down to 16 bit, going down to 44.1khz or increasing the gain any higher than 0 made me hear microphonics. I never had this problem with the genalex gold lion, is this because it has gold plated pins? And the normal orange globes show no problems

And its running much hotter!

 

 

I've never had any issues with rolling my tubes, what exactly is the sound that you're hearing? Are you sure it's microphonics?

As far as the heat, some tubes run hotter than others, it's a fairly normal thing as far as I've heard.


Edited by zoneykid - 7/25/14 at 8:36pm
post #5635 of 6465

It's fine now, i left it overnight and set it back to 0 gain. I think going up to +15 gain fried it a bit

post #5636 of 6465

So my Mac won't see my MK II T1, what do?

post #5637 of 6465

have you tried powered usb hub?

post #5638 of 6465
Quote:
Originally Posted by isendono View Post
 

have you tried powered usb hub?

I'm directly trying it from my main usb ports.

 

Edit: It was the usb cable, tried another one and it works fine now.


Edited by reiserFS - 7/26/14 at 10:05am
post #5639 of 6465
Quote:
Originally Posted by chowmein83 View Post

To anybody that's wondering whether their low-impedance headphones will sound bad out of the T1, I personally am using a T1 with Amperex OG's driving a Sennheiser HD598 and I honestly can't hear any noticeable defects in the sound signature (and yes, I have compared it to something with much lower output impedance - the FiiO E17). It may be that the T1 won't drive something like my 598's to their full potential, but IMO unless you get something that is significantly better than the T1, you won't notice. (Like what Mikoss said about plugging in the HE-500 into the T1.)

I use the T1 (vers 1) with HD558 which has the same drivers as the 598, I have never used an external amp and find the sound magnificent (esp w/ Amperex 7308).
post #5640 of 6465
So in my excited "newb-ness" i ran to the store last night after work and picked up the black keys turn blue on vinyl. I rush home thinking im just going to plug my rega p1 into the t1 and have vinyl goodness running through my he-400's....wrong! I could barely hear the music with the gain and volume maxed out. Upon googling i need a phono preamp....WOW i feel like a newb!
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