Wow, what a simple design. Never know you can directly mount ES9023 onto USB.

Ah, that makes much more sense. For a moment there I thought you put some magic into it

UD100 next to ODAC.

Surprisingly UD100 measured very well in RMAA, even against ODAC. I think it is safe to say for now, at least for my ears, UD100 is 95% of an ODAC if not more. Really excellent USB DAC for the price.

Nothing fancy: PC - (USB DAC) - O2 - Behringer UHA222 for line-in. Didn't use any load for O2 because it doesn't matter in this case. I am just looking for the difference between USB DAC. I would have forgone the O2 if UD100's volume is adjustable on Windows.

For listening, it is PC - USB DAC - O2 - RE0.

This post has been edited by ClieOS: Aug 17 2012, 07:42 PM

Fortunately, ground loop isn't a problem on my PC. I tried two PC setup before and it doesn't make much difference. Also played with USB isolator before as well.

I don't disagree that RMAA isn't the greatest of tools, but it is free. If I have that kind of setup like NvAvGuy, I'll learn how to use them. But till then, RMAA is here to stay. However, the key is to know RMAA limit and know what to look for (and what not to). Even with a bad tool, it can still work if you know how to use it right. Which is why I measure the UD100 against ODAC, which has been well documented. By looking at the difference between result instead of pure number, a lot of things can still be told.

Well, if that fail, I still have my ears and a digital SPL meter to match the volume.

Heard of it but never try. I thought it is a shareware, no?

Ok, will try it sometime.

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Added on August 17, 2012, 8:46 pmAlright, back to the UD100. I happen to have a few TF card reader collecting dust, so I took one part and see if the UD100 will fit inside. Well, what do you know...





This post has been edited by ClieOS: Aug 17 2012, 08:47 PM

E02i is okay with UD100. But if you are just looking for minimalist setup, E6 would be better choice than E02i.

For DAC alone, I probably prefer UD100 over E10 and E17 right now.

Not at all.

My review of UD100:
http://www.inearmatters.net/2012/09/tiny-d...-of-stoner.html
http://www.head-fi.org/t/626632/tiny-dac-b...s-ud100-vs-odac

Never listened to that particular USB DAC and thus can't conclude anything from it.

My impression of the UD110:

http://www.inearmatters.net/2013/10/impres...ud110-tiny.html

Price is USD$69.

They use the same DAC so the overall sound signature is the same. Basically the classic TI house sound for the DAC: warmish, smooth, musical and really good texture over the low to mid range. The difference is that UD120 has better soundstage and clarity over UD110, plus USB async up to 32/384.