What did you buy today? (Part 1)

SM_Music · February 18, 2020, 2:50pm

Great choice!
You are going to love it

Davidibiza · February 18, 2020, 2:52pm

There’s no switch, should be automatic, to can only change modes (d2p or something). Don’t get the link light in the Xduoo with this or other usb c cable to the M9, every other device switches the light on in my Xduoo right away… Starting to believe there’s something wrong with the dap port. It charges ok but is a bit loose…

Towa · February 18, 2020, 2:53pm

Fiio can be a little iffy with otg cables, I had issues with my m6 connecting through USB with 3rd party cables. Worked fine with the official fiio otg tho

Davidibiza · February 18, 2020, 2:55pm

And the funny thing is that the player plays the song when should stop if there’s no output.

joshua_g · February 18, 2020, 8:49pm

R-51m and nobsound 50wpc Bluetooth amp for my mom. Though I got the speakers over a year ago. Been in the box until today.

MazeFrame · February 19, 2020, 12:16am

Beyerdynamic does that at times, yep.

BluJay614 · February 19, 2020, 12:57am

The replacement xDuoo TA-10 came in, and no issues so far! XD
Tried balanced vs single ended with my 4XX and HAC, and I don’t notice a difference yet… Haven’t had it but about 2.5 hours, but we’ll see if I pick up on it.
I know people say burn in for a tube is a thing… My question is, does it work like burn in for a headphone, or is the difference, well… Different?

Polygonhell · February 19, 2020, 1:09am

If it’s a new tube I wouldn’t worry about it, just listen to the amp.
If it’s NOS, and you care then just leave it on for a day or two.
Yes they burn in, but it’s not going to be a radical change in most cases.

BluJay614 · February 19, 2020, 1:10am

What’s the difference between a new tube and a NOS tube?

M0N · February 19, 2020, 1:11am

New as in new modern production, so recently made. New Old Stock tubes are vintage tubes that are in a like new or new state but made a while ago. Typically people feel that NOS tubes provide better quality then new production since newer production is more rare and standards have dropped vs when tubes were actively being made

BluJay614 · February 19, 2020, 1:18am

Okay, so NOS is viewed, typically, as preferable (like vinyl and older recordings of songs), since standards (and thus the quality of the product) where higher at time of production. Am I getting that about right?

M0N · February 19, 2020, 1:19am

Yes very correct. Older pressings of vinyl are typically higher quality than modern pressings. The recordings of songs part depends

BluJay614 · February 19, 2020, 1:24am

Anything one should be aware of or keep in mind when shopping for NOS tubes?

M0N · February 19, 2020, 1:25am

I’m not the best person to ask for this, perhaps @Polygonhell or @Schizoid could help (as they know a fair bit about tubes lol)

BluJay614 · February 19, 2020, 1:30am

Then I guess I’ll have to redirect the question at you two, @Polygonhell and @Schizoid

Polygonhell · February 19, 2020, 1:37am

I just wouldn’t go overboarsd.
A lot of modern Valves are actually pretty good, some of the preference is snobishness TBH.

Personally I don’t like rolling tubes, it’s expensive and in a lot of cases has questionable value, a lot of what people perceive is the difference and is often not “better” per se.

If you want to try it get a recommendation, buy them try them for a week or two then swap them back, if the amp really does sound worse when you do then maybe it was worthwhile.

In your case you could easily spend more than the value of the amp on a single tube, it simply isn’t worth it.

BluJay614 · February 19, 2020, 1:41am

Was just doing a little looking on eBay, and noticed some where rather cheep:

But eBay can be… Treacherous.

Antpage2 · February 19, 2020, 1:41am

Just got this headphone!

Hifiman Arya. Joshua Valor says its the best headphone he’s ever heard. Its gotten critical acclaim from all over. i cant wait to hear it. its supposed to be W shaped. my favorite signature. Its listed for 1600$ Got it for 1100$ from a guy on Ebay who says he only had used it 30 hours. Cant wait to hear it!

Andrew_Davis · February 19, 2020, 1:43am

That is spectacularly well said.

Polygonhell · February 19, 2020, 1:47am

Ebay is mostly fine for tubes TA10 is a single tube right, then it’s not a bad place to play, and 12AU7’s aren’t silly expensive, and you don’t have to worry about matched pairs or quads.

I tend to buy tubes from places I can return them to, it’s easy to get one that has a hum, or is particularly bad microphonics, but I’m buying in much larger quantities that you would be.

As I said give it a try, my personal experience with rolling tubes was as follows

put new tube in
Wow that sounds different
Listen for a while
Repeat from 1

eventually you swap the original tube back in and it’s Wow that sounds different.

I’ve bought from here, these are their 12au7 alternatives