I know that Audio-Technica, AKG, Ultrasone and Shure headphones are the best and most recommended for <$100, but I know that iPhones have trouble driving them. I'm looking for some fairly balanced, over-ear headphones that my iPhone won't have much trouble driving for around under $100. Any recommendations?
Also, don't hesitate to tell me that I'm mistaken and iPhones CAN drive some ATH M40s. I'm a bit inexperienced and still getting used to the world of headphones and Head-fi. Thanks!