I have read with GoogleTranslate the review from here: (http://www.ljudochbild.se/test/horlurar/sony-mdr-1000x). The reviewer mention that had issues when walking: the headphone moves and break the seal with the ear and can hear the outside noise and music tonality changes at each step . Other...

In what usage scenario ? On computer/iOS device/walkman ? As amp or dac+amp ? What impedance has the headphones used ? Thanks.

ZX1 price for Europe:   http://www.sony.co.uk/product/nws-f-series/nwz-zx1   http://www.sony.de/product/nws-f-series/nwz-zx1

Thanks for the comparison. Which headphones were used ?

http://www.headfonia.com/jdslabs-portable-dac-the-jdslabs-c5d/

How the C5D sounds connected as DAC and Amp with your iDevice ? It is bright or smooth ? Soundstage ? Thanks.

There is somebody who can try if ZX1 is working with PHA-1 (as DAC and Amp) ? Thanks.

In the PHA-1 documentation there is this mention : " Digitally broadcast sound may not be output from a computer’s USB port. In this  case, connect the AUDIO IN jack of the unit to the analog audio output of the  computer. " So if I listen Grooveshark from my desktop with PHA-1 connected...

Looking forward to your comparison with PHA-1. Thanks.

Glad to hear that you like PHA-2. It is brighter than PHA-1 ? How is the soundstage compared to the PHA-1 ? Thanks.

Thanks for the impressions. Can you comment about the sound of the PHA-2. Bright or smooth ? How is the soundstage ? How is the sound compared with PHA-1 and compared with 4S ? Thank you again.

I have I read in some thread (I do not remember where exactly) that people tried and it does NOT work.

In which country will be released around next February ?

Very detailed PHA-2 review from Japan: http://av.watch.impress.co.jp/docs/review/review/20131108_622608.html

http://www.headfonia.com/the-phenomenal-philips-fidelio-l2-feat-fidelio-m1bt-review/