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Aune T1 USB Tube DAC+ SS Amp Discussion Thread ***See first post for FAQ--Updated on 02/14/15*** - Page 204

post #3046 of 8012
It's not a asynchronous dac
post #3047 of 8012

I know that many audiophiles want that thingy but I still haven`t got the point of it and really don`t care about it. Personally I think there`s nothing short about Aune T1 being non-asynchronous dac ;) 

 

Well, I read littlebit about it and here`s short explanation for those who don`t know yet what it is: http://www.hifi-advice.com/USB-synchronous-asynchronous-info.html

 

Still, I don`t belive it makes any noticeable difference when Aune T1 could have this asynchronous thing.


Edited by CoiL - 10/20/13 at 3:44am
post #3048 of 8012
Quote:
Originally Posted by CoiL View Post
 

I know that many audiophiles want that thingy but I still haven`t got the point of it and really don`t care about it. Personally I think there`s nothing short about Aune T1 being non-asynchronous dac ;) 

 

Well, I read littlebit about it and here`s short explanation for those who don`t know yet what it is: http://www.hifi-advice.com/USB-synchronous-asynchronous-info.html

 

Still, I don`t belive it makes any noticeable difference when Aune T1 could have this asynchronous thing.

asynchronous generates less jitter, but it's very subtle in most applications. I have asynchronous interfaces mainly for my recording purposes. If(hopefully when...) Im recording the solo of my life I don't wan't anything but perfection in the recording :P

 

But yeah, when it comes to the T1, asynchronous vs synchronous usb-transfer is the least of worries...

post #3049 of 8012
Quote:
Originally Posted by CoiL View Post
 

Jipan, read my comments and links about 6GM8. Works like charm and sound is just mind-blowing-holographic ;P It`s been burning-in and playing already over 48h and it got better too. First was not sure about bass performance but it`s now certainly tight and dynamic. 

 
6GM8 (Click to show)
Originally Posted by CoiL View Post
 

Got really really lucky today... Amperex Orange Globe 6GM8/ECC86 Holland Heerlen - for just 3£ !!! With shipping it cost me only 10€ - crazy deal! O_o Those tubes are usually priced really high and it`s quite rare! Here`s seller pic:

Processed By eBay with ImageMagick, R1.1.1.M2b

This is my first 6GM8/ECC86. All those 6GM8/ECC86`s have been so expensive and quite rare, that`s why I haven`t got it until now. Hope it`s good! ;P

And here`s my pics and sound comments:
Originally Posted by CoiL View Post
 

Edit:  I received my Amperex OG 6GM8/ECC86. It`s coded delta6J5, Heerlen Holland, small o-ring getter. looks like this:

 

How it sounds, well ....OMFG! I think I have stepped up to high-end tubes league with this. Seriously, first impressions with electronic atmospheric music - so freaking holographic sound, big wide large borderless soundstage in every direction with pitch-black background! Every detail, instrument, vocal is so separated from eachother. 

This tube is certainly one of my best tubes. Not sure it`s best for every genre since I have to do some burn-in and compare it with my other gems but it`s freaking freaking freaking good! ;P And to think that I got it only for pennies... O_o 
 

Edit2: And some more listening tells me that it sounds great with rock/metal/progressive/jazz too if your not a fan of intimate sounding tubes with small soundstage. 

Compared to Ultron PCC189 & Amperex OG GAC it has more spacious soundstage but instruments don`t get lost in that space, everything is just so... holographic.

And vocals with Dead Letter Circus for example are easily listenable with all that spacious sound, it does not "get lost in space". Everything is full of detail and clearness.
 

 

 

Just confirming after burn-in & longer listening that this Amperex OG 6GM8/ECC86 is certainly my best tube, followed by Ultron SQ PCC189/7ES8, Amperex OG GAC 6DJ8/ECC88, Siemens PCC189/7ES8, Miniwatt-Dario PCC189/ECC189... and so on...

post #3050 of 8012
Quote:
Originally Posted by CoiL View Post

I know that many audiophiles want that thingy but I still haven`t got the point of it and really don`t care about it. Personally I think there`s nothing short about Aune T1 being non-asynchronous dac wink.gif 

Well, I read littlebit about it and here`s short explanation for those who don`t know yet what it is: http://www.hifi-advice.com/USB-synchronous-asynchronous-info.html

Still, I don`t belive it makes any noticeable difference when Aune T1 could have this asynchronous thing.

+1
post #3051 of 8012

I'm so jealous of you guys here. 

Not only my unit is faulty (channel imbalance, left channel louder) but the channel imbalance seems to make my tubes damage easily on the left channel. It must be feeding extra juice into the left channel of the tube or something. This is my 2nd tube and it's already showing signs of damage. When it's cold it has distortion on the left channel and goes away after warming up.

post #3052 of 8012

That`s sad to hear ;( You should really send your unit to Aune for repair or find a great electrician who could fix it. If I were you, I would stop using it and save tubes. Hope you get your T1 fixed fast!

post #3053 of 8012
Quote:
Originally Posted by CoiL View Post
 

I know that many audiophiles want that thingy but I still haven`t got the point of it and really don`t care about it. Personally I think there`s nothing short about Aune T1 being non-asynchronous dac ;) 

 

Well, I read littlebit about it and here`s short explanation for those who don`t know yet what it is: http://www.hifi-advice.com/USB-synchronous-asynchronous-info.html

 

Still, I don`t belive it makes any noticeable difference when Aune T1 could have this asynchronous thing.

 

Sometimes those technical ramblings sound fine at first until you get to the end when you get this stuff:

 

"When using a PC as source, having very precise, very correct sound can be too much of a good thing if the source computer already sounds thin or when the rest of your system tends to the overanalytical."

 

Wut?

post #3054 of 8012

Yeah, found that sentence also weird but point remains the same... at least for me... Aune T1 is just find as it is ;)

 

Btw, a lot of Ultron PCC189`s on sale: http://www.ebay.co.uk/itm/390660961211?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649
 

Unfortunately they are not gold labeled SQ`s, I asked from seller. But they should be white labels and they are also very good imo. I have 2 white label Ultron PCC189`s, like them very much.


Edited by CoiL - 10/20/13 at 3:33pm
post #3055 of 8012

Weird occurrence today: my unit seems to be faintly cracking, combined with the sound stuttering every 5 seconds. I've tried both my tubes and I'm getting the same result, so I assume it's something to do with the amp. I'll leave it a few days and if it persists I'll request further attention.

post #3056 of 8012
Sometimes I get the stuttering thing but it goes away after restarting the PC, so it's not the t1
post #3057 of 8012
Quote:
Originally Posted by Paspie View Post
 

Weird occurrence today: my unit seems to be faintly cracking, combined with the sound stuttering every 5 seconds. I've tried both my tubes and I'm getting the same result, so I assume it's something to do with the amp. I'll leave it a few days and if it persists I'll request further attention.

I think it comes from latency/buffer. Are you using WASAPI, ASIO or KSP? When I set buffer too low and music is high in detail, it starts to crackle and stutter. 

post #3058 of 8012
Quote:
Originally Posted by CoiL View Post

I think it comes from latency/buffer. Are you using WASAPI, ASIO or KSP? When I set buffer too low and music is high in detail, it starts to crackle and stutter. 

I get stuttering primarily when I am using FLAC Player. I play almost everything from iOS devices. I don't know where the buffer is located to re set it. I don't have the problem with 320 Kbps mp3s. I will have to do some reading to figure this out.
post #3059 of 8012

Can`t help you with iOS but in windows using KSP or ASIO (ASIO4ALL) it`s easy to do. You can adjust buffer amount and size. I think it was down to 256 and less when it started to crackle & stutter @ my PC. I just left it at default in ASIO4LL. Depends also RAM and CPU speed too, my PC is just downclocked most of time and don`t bother to upclock it every time for music listening. When it`s @ overclocked state it will also play FLAC`s clean @ 256 or even less but it`s not important actually for listening. It`s important when you are recording or playing live through MIDI/softsynth, otherwise no need to set latency/buffer so low.

 

Edit: 

 

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.


Edited by CoiL - 10/22/13 at 9:07am
post #3060 of 8012

It has stopped today. I'm currently using the default audio driver with openSUSE (Linux) which happens to be ALSA. The crackle/stutter was happening with all audio signals. I even restarted the PC with no success with the amp. But for some reason it's sorted itself out now.

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