i have alpha 8942 on my 2.2a with a panaflo h1a. The thing is, the vantec tornados are so damn loud. So i figure dout this combo which is very good for my 2.4c rig. slk900u with a 92mm panaflo L1a. The 92mm L1a puts out more cfm and less db then the 80mm panaflo h1a. I think i made a very good choice with that combo, with db's being in the 20's and cfm in the 40's, it's a damn good combo to use.