Can anyone help me tell if these are fake?   http://i.imgur.com/zmPlS6a.jpg   That's the best picture I got from the seller, they have an aftermarket cable.

Has anyone tried upgrading capacitors on the E9? I have 47µf and 470µf on hand but not the rest, not sure if it would be worth it.

  Pretty much anything is an upgrade to the amp section, it's just a fairly simple opamp circuit. Which reminds me, one of the opamps on the T1 isn't SMD, if I don't sell mine soon I might put a socket in there and see if changing them out makes any difference.   As for the DAC, I ended up...

If anyone wants a T1 I'm selling mine with upgraded caps. Got a Music Hall 25.3 which is pretty much a T1 on steroids, so I haven't even turned my T1 on in weeks.

I have, I just want to be able to switch back if I want to. I got them from cCasper and they're already modded with dynamat and some type of hard plastic so they'd probably be a pain to work with anyways.

Awesome, if the wood cups work out for you I'd definitely be interested in your extras.

Does anyone have a set of D2000 cups they don't use? I want to make an open pair but still have a closed pair available.

Board holders definitely help a lot. So does a desoldering pump.

That's...pretty much what I said with more words. I never said anything about the inside of the tube, since the person I quoted was talking about the appearance of the tubes. The tubes will definitely show their age even if they are actual NOS since pins oxidize and tarnish and the labels wear...

Amazon UK has them as well.

  NOS isn't used the same way it is for most other things by a lot of tube sellers for some reason. If you read the descriptions a lot of them will be labelled NOS if they test over a certain amount even if they've been used. Either way tubes tend to not age well physically even if they...

Tubes die, it's just a fact of life, you usually can't tell by looking at them. If the vacuum was lost you would be able to tell instantly by looking at it as they turn white. I've have six 6N1P's now and none of them work.   Also, if anyone wants a T1, I have two of them now since I wanted to...

  It depends which caps you're talking about, there's a couple dozen caps in the T1. Most people only change the 8 big easy to get to ones though, 4 of which are power supply, 2 are coupling, and 2 are amp.

Finally got my hands on an Amperex 7308 and it's definitely worth the price tag. Switched out all the caps too since mine came with 4 generics and 4 elnas.   Anyone know where I can get 6N1Ps cheap from the US though? Or want to sell/trade one? I've have 6 now and none of them work. Was...

It's not USB only, like I said you can use the line in and use it as a solid state. Which is also good since I agree with the earlier posts that tube is not the best for gaming. That's how I use it, the tube for music and solid state for almost everything else.

I have an Aune T1, around same price range being mentioned. It's hybrid/DAC, but nice thing about it is you can use it as pure solid state by using the line in, hybrid by using the DAC+SS, or as a DAC+tube preamp by using the line out. Really liked it with the 990s for the little time I had with...

I just got a pair of DT 990 Pro 250 today, and I was recabling them like I do all my headphones. Apparently the exposed voice coil wires don't like hot air as one was destroyed while I was applying heatshrink.   I found this:  ...

  According to the link you posted it says they can be labelled PQ, USN, or JAN and has pictures of all 3, so they're probably the same.

  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.

  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.

  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...

  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.

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...