Ground Zero Mobile Entertainment Uranium-DX Serie Mode D'emploi page 11

RCA connection Speaker connection
This amplifier has a signal input terminal of RCA connector type for low level inputs. Adjustment
of input levels is accomplished by the gain control of both channels. Adjusting this control allows
the amplifier gain to be controlled to match and balance both channels. The RCA input connector
should be used when connecting the radio/cassette line out and this connection is usually made
using RCA-RCA connector wires.