Cheers! Excellent review. I love the Bluetooth receiver function which I use with my Apple Tv to watch Youtube music at night. Among my gear, I find the 55L matches particularly well with my Etymotic Er4xr. A great quality super portable pair, of course with Mr Walkman’s firmware.

A fun read!
Good to know about the HD 598SE... I wonder about the HD 560S, which has more impedance but still has high sensitivity.

Is Mr. Walkman’s firmware on the Head-Fi discussion threads?

For those who are bothered by the EU sound limit - it's easy to remove with the so-called rockbox tool, see the same thread

Thanks a lot for the review, it was very good to read.

In the end, have you bought the micro SD and moved all your music on it?

I wonder if nw-a55 will be powerful enough to deal with my entire music lib (~450Gb of with cover art) ... Any opinion on that?

I have a 400GB micro SD card in it and it goes without any issues at all.

Very good to know. Thanks!

I have only 4000 songs in my sd, but the walkman only díplay 2000

Also, I cant delete the tracks from my a55. Any ideas

@bach98 do you have all your music in the Music folder of the SD? Do you have your songs organised by Artiste/Album?