Owner's Manual

Table Of Contents
EN
13
In order to protect the speakers, turn the power for systems that this
unit is connected to on and off in the following order.
NOTE
This explanation assumes that a preamplifier is connected to this
unit.
When connecting a UD-505, NT-505, UD-503 or NT-503
IMPORTANT NOTICE
Set the LINE OUT LEVEL to VARIABLE on the UD-505, NT-505, UD-503
or NT-503 in advance.
NOTE
o The UD-505, NT-505, UD-503 and NT-503 are equivalent to
preamplifiers.
o When using a UD-505, NT-505, UD-503 or NT-503 as a USB DAC
or using an NT-505 or NT-503 as a network player, it functions as
a preamplifier and a source device.
Connection example
Source device
CD player or other audio out-
put device
Preamplifier
Preamplifier or other device
with a preamplifier function
(such as a DAC)
AP-505
Turning the power on
1 Minimize the volume of the preamplier.
If using a device that cannot have its volume adjusted when it
is off, minimize the volume after turning it on.
2 Turn the source device on.
3 Turn the preamplier on.
Basic operation
4 Turn this unit on.
The level meters will blink and the mute function will turn on.
When the amplifier operation stabilizes, they will light and the
mute function will turn off.
5 Start playback on the source device, and adjust
the volume on the preamplier.
Adjust the preamplifier volume after the level meters on this
unit stop blinking and stay lit.
Turning the power off
1 If a connected device is playing back, stop
playback.
2 Minimize the volume of the preamplier.
3 Put the unit into standby mode.
4 Turn the preamplier o.
5 Turn the source device o.