Yes, definately USB audio player pro.   And also PowerAmp.

When I tested SE846 at e-earphone Tokyo, I didn't hear any particular hiss, but this is in the shop with a bit of background noise, I cannot guarantee no audible hiss in dead silent conditions.   Coming from JH13 the SE846 sounded bassy.  Very mid-bass centric, but this should be because of...

Using new driver/firmware with NFB-10ES2. No trouble, errors or bugs so far with Foobar and WASAPI, win7 64bit. Regardless of hi-res or 44.1.   Although differences aren't audible for my ears, I'm just saying it's stable and no problem.

  In my review of the X5 I compared it to my GS3 (USB to) Glacier. So it's a comparison of the X5 headphone out vs Glacier DAC section + amp sound.   The X5 comes pretty close, but comparing very critically and analitically (ie nitpicking) with JH13, I would say the Glacier sounds slightly...

Seems MP4nation hasn't learnt anything from 4 years ago when the S-flo:2 or T51 was out.. not enough of the actual number of pre-order units sourced, then delays and delays for delivery.  Like 2 weeks or so was just the beginning.  They attract buyers by doing 5% or more discounts (or add small...

  In the preview tour I compared the X5 to the Apex Glacier - in the review section if you may want to read.

I've been using the DAC section everyday for the past several months, but so far no weird states or sudden shut downs, at all.

    Thanks guys, it was a nervous task since it's my first review up on Head-Fi   And no unfortunately haven't tried the X3 in the past, so I cannot compare..  however I've read others commenting the X5 sound is a fairly big step above.

Review is up: http://www.head-fi.org/products/fiio-x5-high-res-portable-music-player/reviews/10435   It's sent out to the next person.  I hope everybody in the tour enjoys the X5 as much as I did

Well not all of us own a ZX-1 to compare, so yeah...   3rd day in use.  I should start writing up tonight.  I can just say for now that the X5 sounds so damn good that it's going to be a hard time sending to the next person lol.

  Ok sorry I probably overstated it as zero noise, you may or may not hear very slight hiss depending on the source, iems and conditions, you can only find out by actually trying.  I said "zero" since atleast for my setup hiss is not audible..   I've never heard of the DX100 so I cannot...

With the Glacier used daily I don't hear hiss or noise with my JH13 normally... and they're super freaking sensitive IEMs.   At times the Glacier can be prone to ticking noise or static, like if you have a mobile transmitting signal very close to it.  I have the GS3 stuck with the Glacier, but...

Arrived this morning.  Will start using it from tonight..  I'll see how it does with JH13 and T1, and main comparisons will be with my current portable rig (GS3 + Glacier).

YES!