Sennheiser, a leading manufacturer of headphones and microphones for the pro can consumer audio market, recently launched the Inspired by DJs: Day and Nite Portrait Series to promote its new Amperior headphones. Based on the popular HD 25 DJ headphone, Sennheiser says the the Amperior, with its brushed aluminum finish, is geared for both the street and the DJ booth. Netmix takes a look at Sennheiser's new One Day & One Night contest and marketing campaign with Bob Sinclair, QBert, Richie Hawtin and other influential DJs.

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