Hissing on my new Presonus Eris E4.5's?

[ieruiz]

All,

I've been building my new DAW and just got a set of Eris 4.5's but there is a hissing sound when I connect both the headphone jack on my iMac to the Aux-in on 4.5's AND I've got the 4.5's balanced jacks connected to my Scarlett 2i4's balanced jacks (doesn't matter if I use the unbalanced RCA's instead btw).

So whenever I watch a youtube video for example, there's a nasty hiss/static noise. It's even more pronounced when I use the scroll wheel on my mouse.

Anyhow, as long as I don't have BOTH connected, everything sounds nice and clean.

I've tried connecting the 4.5's into other outlets in the room but that didn't resolve the problem. Also, my studio is up in the attic and everything there is on the same circuit so not sure if that's even a viable option to try.

btw that my 4.5's are seated immediately to the left and right of my LCD monitor. Not sure if that's a problem or not.

Any feedback/suggestions welcomed.

Thanks,

-I

 

[mjbphotos]

The hiss, I'm guessing, is coming from the cheapo A-D converter in your computer's soundcard. Try setting your audio settings to use only the Scarlett for ALL audio output, disable the internal soundcard and stop using the headphone output adapted to your monitors.

 

[ieruiz]

Sometimes the solution to a problem is so obviously staring you in the face that you don't even see it! Thanks - that totally works. No hissing and much better sound quality all around.

-I