Coming from the IE80's, when I first heard them, I thought they were pretty similar. Although the ASG-1.2 had less treble and less air, but better mids and bass. I thought it was burn in.. so I gave them 20 hours, and I still found the same differences. The ASG-1.2 is much more neutral, which is more suited for it's original purpose. The IE 80 had a more fun sound, with slightly bigger bass and more treble and air, plus a larger soundstage.