On Mar 19, 2004, at 02:32 am, R wrote:


I can hear a very slight amount of hiss on my 15" 800m
I've only noticed it lately, but its so slight that it
could have been there the whole time.

and this is with my audio midi setup set to put sound
through a seperate firewire device and I have no hiss
through that path and thats bypassing the internal
sound card.

One thing you could try if you haven't already is turn
down your main output on your keyboard and turn up the
volume slider in itunes and even the gain in your eq
setting and see if that at least buries the hiss when
your listening to music.

Maybe its an extenal device thats plugged in to the
mac causing interference ?

Or bad shielding of the sound card from other
components inside ?

Eventhow the intenal sound cards in macs aren't the
highest quality, their shouldn't be audible hiss at
moderate levels, that makes me think its bad shielding
inside.

I'll do some unplugging of external devices and see if
I come up with any thing.

let me know if you come up with anything.

I've found that my little pro-speakers drop in and out slightly <not totally but output has a slightly 'patchy' volume variation). It only happens below a certain volume however, and If i thurn it up to what would be my normal listening level it ceases to be an issue. I don't have any noticeable hiss, however.


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