Amazon offers the Audio-Technica ATH-M50X Professional Studio Headphones in Black, bundled with a $50 Amazon credit, for $169 with free shipping. (B&H Photo-Video offers them, bundled with a $50 B&H gift card, for the same price.) Assuming you'll use the credit, that's the lowest total price we could find by $40, although three days ago we saw them for the same price, but bundled with a $68 B&H gift card. They feature 45mm neodymium drivers, a 15Hz to 28kHz frequency response, swivel earcups, padded headband, and include three detachable cables.

Of note, as we mentioned three days ago, Adorama offers them in Black or White, bundled with a Tascam 2-Channel Audio Recorder, for $154 after rebate.