Grado SR80i Open-Back Headphones Prestige Series. World renowned Grado Labs in Brooklyn are striving for the best sounding headphones you can get for an affordable price. And the SR80i proves they are on the right path. With rave reviews from experts around the globe it seems that Grado have achieved just this. Built on the same characteristics as the SR60i, the SR80i is a touch more superior with an incorporated 4 conductor cable and larger ear cushions providing an even more open soundstage. Bass response is improved resulting in the enhancement of the overall detail.