David Jenkins1 wrote:
I do not buy music from iTunes as they don't offer Lostless Compression, as far as I know.
No one offers loss-less compression.
CDs are compressed too.
So what ever source you're getting your songs from is compressed.
Now you could argue forever what aac and wav compression limits are.
In the end I find that listening through a portable music device (like the iphone) has no real noticeable difference between "loss-less" CD extraction and high datarate aac; or itunes bought aac.
I find a good pair of studio headphones will let you hear the limits of the iphone or ipod as a device, rather then the audio format.
You'd be better off buying into a 10 bit extended CD player and disks if you really are worried about data-rates and audio quality.
But then you'll also need to get a great amp and speakers.
At which time you'll probably want to do research on Audio Equalizers, and complex equalization patterns. I believe there is a common set of equalization sets and Apple has included these in their idevices.
And as a poster above said, open itunes.
Open the equalizer window and choose the presets there.
You'll instantly see the effects the equalizer presets have on the different frequency ranges.
But in the end it's up to you personally if you can hear the difference between CDs and purchased aac files.