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Posts by ClieOS

 Well, there are a few sites that sell HD music. HDtracks.com for an example, just google for more.
 With only 320kbps of bandwidth, it is no likely to be lossless. Since it is not lossless, it is not likely to be HiRes either. However, 16/44,1 is more than enough to cover all human's listening need. With 24bit, we get more headroom to adjust for digital volume without affecting the resolution of the signal. Oversampling the signal to 96kHz mainly to push sampling noise higher into the inaudible range, which should give you a cleaner sound. The point is that you want to...
I am not a Spotify user, but as far as I know, Spotify is 16/44.1 with lossy compression. Setting the UD120 to 24/96 will oversample the signal by default. Oversample to even higher birdepth/bitdepth won't really improve it further.
 Spotify won't benefit from 32/384. I'll say 24/96 is more than enough.
 You can use RMAA on your PC. Normally it will be a few dB of imbalance on the lower position on the pot, likely under 9 o'clock, then it becomes less and less as you turn the pot up, nearing 12 o'clock. Once it is under 1dB, it is usually safe to say there is no imbalance issue since 1dB is how much human normally can detect. 10dB difference, especially if it is around 12 o'clock on the pot, shouldn't be considered as a normal imbalance issue, but a faulty unit.
 This is ASIO: http://en.wikipedia.org/wiki/Audio_Stream_Input/Output ASIO is already included within the Bravo driver you need to install for UD120, so it is pretty much all set to go except that you need to use a software player that supports it (Foobar, Jriver, MediaMonkey, etc) Don't really know any games or music that requires 32/384 at the moment, so it is mostly for future proofing. 24/192 music however is getting more and more common. Of course it can do all of...
 Don't forget the gain switch as well.
 Channel imbalance is inherent in every analog potentiometer. It can be either better or worst, but there is really not such a thing as totally balanced pot, except for digital or stepped attenuator that often costs a lot and as big as half a E10K. AFAIK, FiiO didn't try to fix any balance issue with any of the E10 reversion. Reversion 2 with the gold RCA is for time delay fix, the reversion 2 is for the headphone jack. The pot that is used in E10K currently is the same...
UD120 can run 32/384 in ASIO mode, otherwise 32/192 max.
 Both are SMD. The opamp are SOIC8 and the buffer are TO-263. You might be able to replace the opamp but the buffer won't be easy, even with a heat gun, given the metal back plate is also soldered onto the PCB and packed very tightly with other components surrounding it. Here is just the front with the buffer. Opamp are on the side of the PCB, with no room for any adapter.  
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