Multiple audio inputs to one or two sets of monitors...

[KingDiamond]

I have a computer I use for recording and playing games and listening to music. I have a Presonus Firepod and a Creative XtremeGamer sound card. I use my KRK RP-6 monitors for mixing, recording, gaming, etc. Currently I use a small Behringer UB802 mixer to allow me to use both inputs with the pair of monitors. The problem is that the mixer kind of sucks and if I turn it up loud enough I can hear a hissing noise, but without the mixer and the audio input from either the Firepod or the sound card I get no hissing noise. So is there some kind of hardware device instead of a mixer that allows the use of multiple inputs on a pair of monitors?

Thanks.

 

[KingDiamond]

I found something called the Samson C-Control, it allows multiple line level inputs but the bad thing is that it can't control the levels of the inputs. I also read Presonus is coming out with something called the Monitor Station and that might work but it's going to be more than I'm willing to spend.