RDL ST-UBA2 Unbalanced to Balanced Amplifier 2-ChannelThe ST UBA2 is used in any application requiring conversion from unbalanced consumer format signals to professional +4 dBu. It may be used to balance audio from CD players, cassette decks, computer sound cards, televisions, and a wide variety of other unbalanced sources. The mono sum output may be used to drive patch bay jacks, monitors or subwoofer amplifiers. Separate Dual LED VU metering is provided for the left and right outputs. A green LED