Newegg offers the Sennheiser HD 518 Over-The-Ear Audiophile Headphones for $99.95. Coupon code "EMCAXAN25" cuts that to $49.95. With free shipping, that's $5 under last month'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. Deal ends September 3.