 Professional audio companies such as Genelec, Neumann (formerly Klein + Hummel), Quested, and M & K sell almost exclusively to recording studios and record producers, who comprise key players in the professional monitor market.Most of the consumer audio manufacturers confine themselves to supplying speakers for home hi-fi systems.Companies that straddle both worlds, like Amphion Loudspeakers, ADAM, Dynaudio, Focal/JM Labs, JBL, PMC, surrounTec and Tannoy tend to clearly differentiate their monitor and hi-fi lines.