Originally Posted by dressedforsuccess
Andre, I've heard that sometimes you can get sound distortion from the phone part of the iphones (I guess when you're on a call, streaming data or whatever). Have you experienced any of this?
Do you mean the interference that GSM phones occasionally put into nearby electronics? Other than that I haven't really experienced distortion from the phone. I've had some bad luck with the AT&T network messing up calls.
Originally Posted by Artisan Fan
I'm not sure how they conducted that test as I could not find it from the link...but using my own recordings the suckout is quite noticeable. I have had several apple designers admit this. Adding in a hump on EQu makes nice improvement and brings my classical recordings back to where they sound like the live event did. The Classic, and even more my other iPod the 5G, sound far better.
Do you know how they conducted that test?
Here is their test methodology:
At first I thought that perhaps your suckout could be due to the increased loading of driving a pair of headphones directly but I see from that page that they also test into a 32 Ohm AKG headphone as well as the 20 kOhm line-level input of the M-Audio.
What is the frequency, magnitude and width of the suckout, and how was that measured? If it really exists, that would reflect utterly incompetent design, as even the cheapest DACs don't have anything nearly that bad. They have other bad things, but frequency response errors in the middle is not one of them.
The other thing you should note is that EQu has had a few bugs. For example, in that Head-Fi thread, the curves sometimes don't reflect the actual EQ value (the curves are half as much as the EQ), which makes me wonder what other bugs are in their software. For example, is flat in EQu truly flat?