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13
To temporarily changes the Tone Control Bypass, press the BYPASS C button
on the remote control to toggle the Bypass mode enabled and disabled.
Bass and Treble Controls 9C
Set the Bass or Treble controls from the front panel by pressing the MENU
9 button to toggle to the Tone control menu. Press ENTER 9 button to
toggle between BASS and TREB options. Press the - or + 9 button to adjust
the value. The Bass and Treble values range from -10 to +10.
NOTE: These settings are saved permanently including after powering
off the RA‑1572MKII.
To temporarily change the Bass and Treble settings from the remote control,
press the BASS or TREB button C, then press the up/down/left/right E
arrow buttons on the remote to adjust the value.
NOTE: Bass and Treble changes are only available when Tone Bypass
is disabled (see Tone Control Bypass section).
A properly setup high-performance audio system produces the most natural
sound with little or no adjustment of the tone controls. Use these controls
sparingly. Be particularly careful when turning the controls up as 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 does not automatically turn
on the tone control. To turn on tone control, refer to previous section
Tone Control Bypass.
Source Input Selector
8
K
Press the corresponding input button on the front panel 8 or remote control
K to select the desired listening source.
Dimmer Control
Display Dimmer
9
B
To change the brightness of the front display, press the MENU
9
button
to toggle to the DIMMER Setting. Then press the - or + button on the front
panel to change the brightness.
NOTE: This setting is saved permanently including after powering off
the RA‑1572MKII.
To temporarily change the display brightness, press the DIM B button on
the remote.
POWER 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 POWER
LED Setting. Then press the - or + button on the front panel to change the
brightness.
Valid settings include: BRIGHT, MID, DIM.
NOTE: This setting is saved permanently including after powering off
the RA‑1572MKII.
PC‑USB Input r
See Figure 4
Connect this input using the supplied USB cable to the USB socket of your
computer.
The RA-1572MKII 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 RA-1572MKII. You will also need to switch the
RA-1572MKII to USB Audio Class 2.0 playback mode with the following:
• Press MENU on the front panel until “PC-USB AUDIO CLASS” appears
on the display.
• Select “2.0” using the “-” button then press “ENTER”.
• Power cycle the RA-1572MKII 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 RA‑1572MKII.
NOTE: MAC computers do not require a driver to support PC‑USB
1.0 or 2.0 audio.
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.
RS232 u
The RA-1572MKII 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 RA-1572MKII, contact your authorized Rotel dealer.
Rotel Link
o
Rotel Link is not used for RA-1572MKII.
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