genisis cooler with 3x bitfenix pro 140 mm fans

Just installed genisis cooler, This thing is huge!
Replaced Corsair H70.
Idle temps are lower, Full load temps topping out at 58 degrees with the Genisis.
H70 topped out at 50 degrees.
All fans running at 700 rpm so whisper quiet.
Why the change, H70 started to make a humming noise.http://imageshack.us/photo/my-images/255/genisis.jpg/

http://img11.imageshack.us/img11/2619/genisisd.jpg
Pic

looks frigging good with the bitfenix fans but why not buy another h70 with the lower temps?