Adorama offers the Sennheiser HD 650 Over-the-Ear Headphones in Titanium/Silver for $287 with free shipping. (Amazon offers them for the same.) That's $3 below our mention from last week and the lowest total price we've seen. (They're a current low by $40.) These open-back circumaural headphones feature a 10Hz to 39.5kHz frequency response, 300-ohm impedance, detachable cable, and aluminum voice coils.