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DIGITAL SYSTEM AMPLIFIER
Owner‘s Manual 11
2.10 Audio Input Cabeling
Inputs are electronically balanced. Whenever possible, using balanced audio signal feeds at the input of the power
amplifier is always preferred. Unbalanced connections should only be used if the cables are very short and no
interfering signals are to be expected in the vicinity of the power amplifier. In this case, bridging the screen
(shielding) and the pin of the inverting input inside of the connector is mandatory. Otherwise, a 6 dB drop in level
could result. Please also see following illustration. Due to their immunity against external interference sources,
such as dimmers, mains connections, HF-control lines, etc., using balanced cabling and connections is always
preferable.
Illustration 2.1: Balanced / unbalanced connection of input