Conrad XCA 200 Notice D'emploi page 32

For connecting the cinch inputs, use only shielded cinch cables suitable for this
purpose. The use of any other cable may cause interference.
Keep the length of the connection cables as short as possible.
Do not install the cables in the proximity of other cables. Thus, you avoid interface
at the amplifier input.
To avoid distortion or mismatches that could lead to the power amplifier being
damaged, only sources with a cinch plug should be connected to the cinch inputs
and only speaker outputs should be connected to the speaker inputs of the models
XCA 200 and XCA 202. Please, also pay attention to the connection loads in the
"Technical Data".
Model XCA 400 and XCA 402
Connect the cinch outputs of your car radio to the
cinch connections IN (7) of the amplifier.
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rear outputs
> connection REAR IN
front outputs
> connection FRONT IN
Pay attention to the marking on the cinch connec-
tions:
L > left
R > right
If your car radio does not have 4 pre-amplifier
outputs please use the so called Y-adapter.