Rolls MB15B 2-Way Stereo ConverterThe Rolls MB15b ProMatch is an inexpensive line level audio device that converts consumer level stereo RCA signals to balanced XLR professional line level signals, and vice versa. The unit is useful for video duplication and audio recording studio applications; for example, connecting a consumer VCR to a professional video deck, or an off the shelf CD player to a professional mixing console or recorder. The MB15b ProMatch has 2 XLR inputs and stereo