Caution:
Please do not plug in or unplug RCA Plugs to the amplifier inputs while the amplifier is turned on. Doing
so is potentially harmful to the amplifier
by allowing RF(radio frequencies)
into the amplifier, causing
instability, during the brief period while the RCA shield is not connected, and the hot is connected. Only plug in or unplug RCA plugs with the amplifier off as Standard practice with all audio equipment.