Sennheiser is not a brand that needs explaining. Founded in 1945, the company manufactures high end headphones, microphones as well as products with a more industrial application. Sennheiser's first product was actually a voltimeter and later began to manufacture microphones, mixers and miniature magnetic headphones. 1968 saw Sennheiser release the world's first open headphones which in turn had a seismic impact on the consumer market as buyers preferred the natural airy sound.Off the back of this commercial success Sennheiser were able to build their headphone business into the sonic behemoth that exists today. Models like the HD598 and HD600 monitor headphones further solidified the brand's reputation for uncompromising quality. Their present flagship, the HD800s are a culmination of laser precision and supreme comfort, offering a non-fatiguing and natural sound to listeners.