Absolutely superb!!! I bought these headphones for use with my home Digital Recording studio, where a full range and separation is vital. I'm not sure how 'flat' the response is, but I can tell you that once you have sorted out the fit in your ears these earphones are a joy to use. Yes there is plenty of bass... and when I tested these with my discman I could hear the effects used on separate instruments... and I heard some real sub bass that I hadn't heard before! I think you'd have to be a real Hi-Fi super geek to find fault with these headphones. My only gripes are that even though the iH website says free delivery for orders over £100 I was still automatically charged £5.99 for 'next day courier' delivery... which actually took 2 days. Secondly I could at no time in the day get iH to answer their phone... but to be fair I did get the goods.

Excellent, crisp sound that makes you think the artist is actually sitting next to you. What's not so great is that they simply can't deliver when it comes to those deep base rumbles that give you goosebumps.