In all those years i have owned had lot of portable players(first one a walkman from the eighties) , most of them are from Sony, i came from a X1060 (before that A2000) but this thing is a big step up.   The sound is amazing.   Brutal playing electronic music with the Ultimate Ears TF 10.   If you can get this player for a nice price you are in the zone.   The ZX2 is double the money at the moment but to expensive for e little (battery) improvement in my opinion.   Regards.