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13
sparingly. Be particularly careful when turning the controls up. This increases
the power output in the bass or treble range, increasing the load on the
amplier and speakers.
NOTE: Setting the Bass and Treble controls do not automatically turn
on the tone control. To turn on tone control, refer to previous section
Tone Control Bypass.
Source Input Selector
8
I
Press the corresponding input button on the front panel
8
or remote control
I
to select the desired listening source.
Push the front panel source buttons to toggle between Optical 1 - 2, Coaxial
1- 2 and Aux 1 - 2 or use the dedicated source button on the remote control.
Dimmer Control
Display Dimmer
9
D
To change the brightness of the front display, press the MENU
9
button
to toggle to the DIMMER Settings. Then press the - or + buttons on the front
panel to change the display brightness.
NOTE: This setting is saved permanently including after powering off
the A14MKII.
To temporarily change the display brightness, press the DIM
D
button on
the remote.
LED Dimmer
9
To change the brightness of the Power LED and the two Speaker Selector
LEDs on the front panel, press the MENU
9
button to toggle to the LED
DIMMER Settings. Then press the - or + buttons on the front panel to change
the LEDs brightness.
NOTE: This setting is saved permanently including after powering off
the A14MKII.
PC-USB Input r
See Figure 4
Connect this input using the supplied USB cable to the PC-USB socket of
your computer.
The A14MKII supports both USB Audio Class 1.0 and USB Audio Class
2.0 modes. Windows computers do not require installation of a driver for
USB Audio Class 1.0 and support playback of audio up to 96kHz sampling
rates. The Factory Default setting is USB Audio Class 1.0.
To take advantage of USB Audio Class 2.0 audio playback supporting
up to 384kHz sampling rates you will need to install the Windows driver
supplied on the CD included with the A14MKII. You will also need to switch
the A14MKII to USB Audio Class 2.0 playback mode with the following:
• Press MENU on the front panel until “PC-USB CLASS” appears on the display.
• Select “2.0” using the “+” button.
• Power cycle the A14MKII and reboot your PC after changing the USB
Audio mode to ensure both units are properly congured.
Many audio playback applications do not support 384kHz sampling rate.
Please conrm your audio player supports 384kHz audio and you have
384kHz audio les to properly playback this sample rate. Also, you may
need to congure the audio driver in your PC to output 384kHz or your
computer may “down sample” to a lower audio sample rate. For more
information please refer to your audio player or operating system information.
NOTE: USB Audio Class 2.0 requires installation of the Windows PC
driver on the CD ROM included with the A14MKII.
NOTE: MAC computers do not require a driver to support PC-USB
Audio Class 1.0 or 2.0.
NOTE: Upon successful installation of the driver, you may need to select
the ROTEL audio driver from the audio/speaker setup of your computer.
NOTE: Support for MQA and MQA Studio requires USB Audio Class
2.0. Please select USB Audio 2.0 to support MQA.
Rotel Link
t
Rotel Link is not used for A14MKII.
EXT REM IN Jack
y
This 3.5mm mini-jack receives command codes from industry-standard infrared
receivers via hard-wired connections. This feature could prove useful when
the unit is installed in a cabinet and the front-panel sensor is blocked. Consult
your authorized Rotel dealer for information on these external repeaters and
the proper wiring of a jack to t the mini-jack receptacle.
RS232 Connector
i
The A14MKII can be controlled via RS232 for integration with automation
systems. The RS232 input accepts a standard straight DB-9 Male-to-Female
cable.
For additional information on the connections, software, and operating codes
for RS232 control of the A14MKII, contact your authorized Rotel dealer.
Network Connection
o
The A14MKII can be attached to a network using the rear panel NETWORK
socket o. The NETWORK congurations allow both STATIC and DHCP
IP addressing. See the Network section of this manual under Setting Menu
for IP address conguration information.
The NETWORK connection allows software updates to be downloaded from
the Internet. The NETWORK connection also allows IP control for integration
with automation systems.
For additional information on the IP control please contact your authorized
Rotel dealer.
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