Luxman C-900u, Руководство пользователя, Страница: 19 / 36

CONTROL AMPLIFIER C-900u
17
External pre reproduction
Connection between external pre-input
terminal and input devices such as an AV
amplifier
When this unit is used through the external pre-input, only the
unbalanced output terminal is active as an output terminal
of this unit and no sound comes from the balanced output
terminal.
When the main power switch is turned off or this unit is in the
standby state, external pre -input signals are always provided
from the unbalanced output terminal regardless of the exter-
nal pre switch setting.
Connect between the pre-out terminal of an input device
such as an AV amplifier or a pre-amplifier and the external
pre-input terminal of this unit with a pin-plug cable.
At this moment, exercise extra care not to conduct wrong
connection between the right and left channels. If the right
and left channels are connected reversely, the localization of
sound images is deteriorated, thus failing in normal stereo
playback.
If the grounding of the pin-plug cables is inadequately con-
nected, noises including hum may be generated, resulting in
an adverse S/N ratio. Surely insert the connection plug.
When the external pre switch is set to ON, the volume control
of this unit cannot adjust the sound volume.
Volume adjustment shall be performed at the input device
side such as an AV amplifier and a pre-amplifier connected to
the external pre-input terminal.
If a device that has no volume adjustment function such as
a CD player is connected to the external pre-input terminal,
the volume control of this unit cannot function, and there-
fore, sudden loud sound may be generated when the external
pre-input is selected, which may cause hearing loss or dam-
age to the speakers.
For such input devices, be sure to use a pre-amplifier
equipped with the sound volume adjustment function as a
relay, generate sound through the speakers with volume low-
ered, and adjust the volume to your favorite level.