Jump to content

Macbook Pro + power cable + firewire interface = HISS???!

Recommended Posts

Hey all,


Following the advice by a member here I just purchased a Presonus Firestudio Mobile interface! (My first interface - newb into this Logic/Mainstage)

I'm a real beginner at this stuff - traditionally a just a keyboardist/pianist.

Now everything is all good except, there's a really annoying hiss!

I'm using a 2008 Macbook Pro (the one right before the unibody design) with the Presonus Firestudio Mobile interface.

Now, when I unplug the power from the macbook, the hiss gets alot less audible (it's still there, just at a lower pitch and volume).

So I'm guessing it has something to do with the mac's power supply? Which is really weird since I thought the whole reason for getting an external interface is to get it as far away from the computer's noisy environment as possible?? So why is it still affected??



As I mentioned earlier, I am a beginner and don't have a clue on when to even begin to solve this problem! I tried using the AC adapter on the presonus, instead of just using bus power - didn't work.


Anyone have any idea on what to do?


Thank you guys heaps in advance and I look forward to spending some time around here as I start to dive into the more high-tech side of music!!



Link to comment
Share on other sites


This topic is now archived and is closed to further replies.

  • Create New...