Pros: Neutral sound
I bought these years ago and honestly haven't used them much. Recently, I have come to appreciate that the AKG K324P IEM headphones give a neutral, realistic sound unlike the many bass-heavy headphones that are popular today. It seems that when the bass is emphasised the mids and highs lose some clarity. Sure, it's easy enough to attenuate the bass but it's not so simple to recover whatever is missing. Good luck in finding non-basshead phones today.