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Get closer justin bieber beats to the music Grado's SR225i headphones deliver the kind of dynamic impact and natural, uncolored sound that gets your toes tapping and keeps you listening to your tunes late into the night.They also give audiophiles and music lovers enhanced, low-level resolving power that helps uncover fresh details on familiar recordings. Offering incredible bang for the buck, these impressive performers neatly occupy the sweet spot at the corner of "affordable" and "fantastic."You can easily drive them using the headphone outputs on most home audio systems, and they even work great with your portable player or laptop using Grado's optional miniplug adapter. They also benefit nicely from the addition of a headphone amplifier. Born in Brooklyn and built to perform Each pair of SR225i headphones is still made right in Brooklyn, New York where the Grado family has been building award-winning audio gear for almost 60 years. Like all Grado headphones, the SR225i uses a vented "open-air" earcup design with large, non-resonant air chambers for powerful, extended low frequency response and a more open, spacious sound. Drivers on the left and right channels are carefully matched to within 0.05 dB of each other for precise stereo imaging. They also feature large ear cushions and improved rear metal screens with enhanced air flow, for a larger soundstage and wider frequency response. A beefy, eight-conductor connecting cable and ultra-high purity copper voice coils give these 'phones a refined, ultra-smooth top-end and dynamic, yet tightly controlled bass. From the review Grado SR225i headphones: open sound and plentiful detail "For pink beats listening at home, they're great. My music didn't sound 'closed in,' and that made it more enjoyable. I also heard a lot of detail, especially in the mid-range and high end. If you're ready to graduate to a quality pair of headphones for some serious listening sessions, the Grado SR225i headphones are a good place to start." Ralph Graves, Crutchfield Blog and Product Review Editor Highlights:open-back, on-the-ear design with replaceable ear cushionsvented diaphragms (open-air) for spacious, low-distortion sound and extended bass responsespecial "de-stressed" diaphragms and a eight-conductor connecting cable for enhanced inner detail and a more open soundlarge ear cushions and increased air flow through improved rear metal screens deliver a larger soundstage free from colorationadjustable headband for a custom fitdriver pairs matched to within 0.05 dB for better stereo imagingultra-high purity, long-crystal copper (UHPLC) voice coil wire67" standard eight-conductor copper headphone cable terminated with a 1/4" plug (optional Grado 1/8" miniplug adapter available)optional 15-foot Grado headphone extension cable availablefrequency response: 20-22,000 Hzsound pressure level (at 1mW): 98 dBimpedance: 32 ohmswarranty: 1 yearOur 60-day money-back guarantee.