After a bit of research on the internet and from other's on here, I decided to buy these for my daughter's birthday, as she gets thru those horrible in-ear things at a rate of knots !! Getting them for £30 also helped !
Anyway, as luck or mis-fortune would have it, my trusty old Sennheiser PX-100's decided to call it a day at the same time. So on tearing away these headphones from said daughter who is mightily pleased with them thought I'd try them against some AKG 450's which I'd just ordered.
Well, to be quite honest, these Panasonics blew the AKG's out of the water, which I didn't expect.
Using them "flat" ie, with no equaliser they sound pretty good, but tweak the sound EQ a bit with your iPod',s etc and they really sing. They can be quite boomy in the bass, but a bit of tweaking takes that away and they sound very natural and open with no particular area over-powering ..... quite neutral really.
The AKG's have been returned and tbh, I will be ordering a pair of these after writing this review. Far more musical than "hi-fi" or so-called "studio-monitor" cans. In fact I prefer these also to the Grado SR80i's I recently tried.
Don't get sucked in by paying more means getting a lot better sound - these are truly "musical" cans, and for the money an absolute steal in sonic terms - buy with confidence.