Pros: Beautiful midrange, well balanced "old-time" sound, price
Cons: price, not sturdy enough
This headphone is one of the best headphones for classical music. Others in the same price range would be Audio Technica ATH-AD900, Beyer DT880, AKG k701. I think that k501 can even challenge some other dynamic headphones in higher price ranges. It is definately better than Sennheisers offerings HD650/600, for classical. This is a real classic, one of a kind.