B&O la the best...high end speaker which you usually get when owning a luxury car...haha...

altec lansing still for me has the best of all sound..while edifier pretty catch up with the spec and lastly...sonic gear...cheapest speaker to get what spec you want such as freq,5.1,vacuum..so quality a lil bit (u know what to add)

my fren bought 1...i think i hear a better quality sound..feels like a pricey speaker but when saw it..just sonic gear..dunno what other thinks