gabedamien:Please look again:
From what I see from the specs on the WD page the EZRX is listend as just a bit louder than the EARX, which is also a little bit slower.
As soon as I have time I'll try to look more for benchs, in the meantime if anyone knows the real differences...
Which, by the way, is identical to the pop-out spec sheets on this page
EZRX is quieter and faster than EARX, uses less power, and has higher shock absorbance and lower weight. It is equal or better in literally every single way (and a brief price search suggests that they are even the same price). I presume it uses a single platter, which would explain all of these advantages.