Amazon offers the Sennheiser HD 598 Special Edition Over-Ear Headphones in Black for $123.10 with free shipping. That's $7 below our mention from last month and $27 under the lowest total price we could find for any color elsewhere. These open-back headphones feature a 12Hz to 38.5kHz frequency response, 50-ohm impedance, two cables (3-meter and 1.2-meter), velour ear pads, and padded leatherette headband.