BuyDig via eBay offers the Beyerdynamic DT 880 250-Ohm Headphones in Black/Chrome for $139 with free shipping. That's the lowest price we could find by $30, although we saw them in April for $4 less. These semi-open headphones feature a 5Hz to 35kHz frequency response, 250-ohm impedance, and a gold-plated 1/8" jack with 1/4" adapter. They come with a carrying case.