If you’ve been holding out for a good deal on wired headphones, the Sennheiser HD 660S2 is currently sitting at $349.99 on Woot, down from its original $679.95. That’s a serious cut for a set of headphones that usually don’t dip below the $400 mark elsewhere—for reference, they’re $415.90 on Amazon right now. Plus, Prime members get free standard shipping (non-Prime buyers pay $6 for delivery), and it comes with a two-year Sennheiser manufacturer warranty. That said, Woot doesn’t ship this item to Alaska, Hawaii, or P.O. boxes.
Thanks to the open-back build of the HD 660S2, you get a wide, natural soundstage that makes instruments and vocals feel more spacious. And with 300 ohms of impedance, they do their best work when paired with a good amp or DAC, delivering deep bass without being muddy; even at louder volumes, the sound stays clean and detailed. Comfort is handled well too—the velour ear pads are soft, and the headband has precise notches for a snug, repeatable fit. Long sessions are fine for most, though you might notice some fatigue after several hours, depending on how sensitive you are.
What do you think so far?
You do have a couple of small trade-offs. There’s some audio leakage, as with any open-back design, so they’re not ideal for shared spaces. Also, while they include two cables (one with a quarter-inch connector and one with a 4.4mm balanced plug), both are just under six feet—fine for casual setups, but maybe a bit short for studio rigs or larger rooms, notes this PCMag review. Still, for those who want clear, balanced sound without artificial tuning and don’t mind being tethered to a wire, the HD 660S2 offers a lot of value at this price. For more options, here are our picks for best over-ear headphones.