Newegg offers the Philips HiFi Precision Over Ear-Headphones, model no. SHP9500, for $49.99 with free shipping. That's $13 under our mention from a month ago and the lowest total price we've seen. (It's also a current low by $20.) They feature 50mm neodymium drivers, frequency response of 12Hz to 35kHz, open back design, and a 10-foot cable.