Audiolab M-DAC 사용자 지침 - 페이지 7
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6: Operation-1
Switching On and Off
Connect power to all system units, switch the mains on. Switch on all
the source units including M-DAC+, and then switch on the power
amplifier.
When switching on: The power LED illuminates.
When switching off: Switch off any power amplifiers, unless they are
trigger enabled, and then the source units including M-DAC.
Standby Mode
Audiolab M-DAC+ will be in standby mode when powered on. Press
the
button to bring M-DAC+ out of standby, the power indicator
LED becomes brighter and the display shows the welcome screen.
You can activate the "auto standby" function by holding the
button for 3 seconds. Using this "auto standby" function, M-DAC+
will automatically go into standby mode when there is no signal input
or operation for 20 minutes, when the power indicator LED becomes
dim.
Source Select
Rotate the SEL knob on the front panel to select different source
inputs. M-DAC+ has COAX1, COAX2, OPT1, OPT2, AES3, iPod
docking and PC USB - in total 7 signal inputs available.
Altering the Volume Level
Rotate the VOL knob on front panel to alter the volume level.
The range is -80dB to +3dB, the factory default volume is -20dB.
If the volume is set to lower than -20dB when unit is shut down, the
default volume will be the last used value when the unit next starts
up. If the volume is set to higher than -20dB, the default volume will
be -20dB when the unit next starts up.
Pressing the VOL knob on the front panel or the MUTE button on the
remote control can toggle the sound on/off.
Switching the display on and off
Press the DISPLAY button on the remote control to cycle through the
display settings.
Press the DISPLAY button to select between Display High, Display Low
and Display Off. Each press of the DISPLAY button will select the next
display setting.
When the display is set to OFF: Pressing any key will bring the display
on. After a few moments the display will again switch off.
Note: Switching the M-DAC+ off and on again restores the display
settings to high.
Footnotes on the Display
The M-DAC+ provides a true reading of the digital input frequency. For example when a
stable 44.1kHz input is present you may see the display vary between 44.100k and 44.1001k.
This indicates an error of 1Hz in 44.100kHz and is insignificant. A less stable source may vary
more. This option may be disabled in the menu if you prefer.
When the digital input is off, M-DAC+ display always shows the nominal value.
Playing a USB input
Install the Audiolab Audio Driver from the CD-ROM provided as an accessory. The installation
instructions are burnt on the CD-ROM, please refer to the file when installing the software.
Connect your computer to M-DAC+ via USB cable (type A to Type B),
change the Play mode to USB input using the handset or the button
on the front panel.
"Unlocked" will be displayed if there is no input signal to the USB
input. When you play a file the digital inputs will lock onto the input
data as soon as there is an input signal for USB. The display screen will then indicate the
presence of a digital signal and show the output sampling frequency
of the music file in your computer.
If the input sampling frequency is 384kHz, the display shows PCM384 kHz.
If the format of the music file is DSD64, the display shows DSD2.8MHz.
If the format of the music file is DSD128, the display shows DSD5.6MHz.
If the format of the music file is DSD256, the display shows DSD11.2MHz.
Page 6
Display High
Display Low
Display Off
USB
-28dB
Unlocked
USB
-28dB
Unlocked