That first post is rubbish, it does not happen on ALL Santa Rosa MBP's.
I have one, with some Bose companion 3's and turned up fully with nothing playing you can hear no static at all.
The funny part is that the hissing is also really bad with the apple in-ear headphones ... I already got my whole motherboard and mbp replaced twice and nothing helped. Any suggestions what in-ear headphones to buy?
I don't know what your budget is, but anything from Shure is pretty good. I think the Bose ones are rubbish. The best of the E500/SE530. If you have the money, the UE Pro 9, 10, 11 are nice, but they are reference headphones and lack a bit bass boost.
The funny part is that the hissing is also really bad with the apple in-ear headphones ... I already got my whole motherboard and mbp replaced twice and nothing helped. Any suggestions what in-ear headphones to buy?
so ill be fine with my Bose in-ear headphones?
The Fix
The fix is actually surprisingly easy: all you need to do is increase the impedance of your headphones! To do this, you'll need to either buy or make an adapter. I chose to buy one, the Shure Level Attenuator Volume Control EA650. Cheapest I could find it was from some guy on eBay. Shure makes good quality products, and at $14 shipped it's not that expensive. It connects between your computer and your headphones, and only a quarter turn on the volume knob eliminated the hiss and static for me.