Newegg offers the Sennheiser HD 518 Over-The-Ear Audiophile Headphones for $99.95. Coupon code "EMCATAS55" cuts them to $54.95. With $1.99 for shipping, that's $3 under our mention from a week ago and the lowest total price we've seen. (It's a current price low by $16.) These open-back headphones feature a frequency response of 14Hz to 26KHz, Duofol diaphragms, and 10-foot cord.