I had the heresy iv for a few weeks to audition and unfortunately was not happy with them. They are highly rated by the likes of Steve Guttenberg and Andrew Robinson on yt. I'm not saying those guys know what's the "best" but they have raving reviews if you have to time to watch. Personally I found the sound too forward and in your face. They are not a neutral pair. I actually found them very fatiguing which those two reviewers above both said the exact opposite. I found the midrange to be most lacking. I was also very distracted by them being placed floor level so I could not stop feeling like the noise was coming up from the ground rather than straight into my ears. The one big plus is their sensitivity which is just unmatched in the industry.
