Newegg offers the Sennheiser HD 518 Over-The-Ear Audiophile Headphones for $74.95. Coupon code "EMCAWAS27" cuts them to $54.95. With free shipping, that's tied with last week's mention and the best price we've seen. (It's a current price low by $20.) These open-back headphones feature a frequency response of 14Hz to 26KHz, Duofol diaphragms, and 10-foot cord.