Owners Manual

12
RA‑1570 Stereo Integrated Amplifier
Audio Controls
VOLUME Control
4
B
Turn the controls clockwise to increase the volume, or counter clockwise to
decrease the volume. From the remote control press the volume + or - button
to turn the volume up or down. Press the MUTE B key to completely mute
the volume.
BALANCE Control
9
C
The Balance Control adjusts the left-to-right balance of the sound output. The
factory default is the center position or “0”. To change the balance from
the front panel, press the MENU
9
button to toggle the front display to
BALANCE SETTING mode. Then press the - or + buttons on the front panel to
change the value to LEFT or RIGHT. The value can change from L15 to R15.
NOTE: This setting is saved permanently including after powering off
the RA‑1570.
To make temporary changes not saved after power off, from the remote,
press the BAL C button to access the BALANCE SETTING menu, then press
the left or right E arrow keys to adjust. When finished, press the EXIT F
button to exit the menu.
Tone Control Bypass 9K
Bass and Treble Control (Tone Control) circuits are bypassed at factory
default to ensure the purest possible sound. The front display will show TONE
BYPASS. To turn on the tone control from the front panel, press the MENU
9
button to toggle to the Bypass control then press the - or + buttons on
the front panel to turn bypass on or off.
NOTE: This setting is saved permanently including after powering off
the RA‑1570.
To temporarily changes the Tone Control Bypass, press the BYPASS K 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 either the Bass or Treble Setting menu. Then press
the - or + 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‑1570.
To temporarily change the Bass and Treble settings from the remote control,
press the Bass or Treble button C, then press the left or right E arrow keys
on the remote to adjust the value.
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 amplifier 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.
NOTE: Tone Bypass, Bass, Treble and Balance are only saved
permanently from within the Menu. Adjustments made using the CK
buttons are temporary only and not saved after power off.
Function Control
8
J
The Function control selects the input signal source. From the front panel or
remote press the corresponding input key to select the source to listen to.
Dimmer Control
Display Dimmer
9
L
To change the brightness of the front display, press the MENU
9
button
to toggle to the Display Settings. Then press the - or + buttons on the front
panel to change the brightness.
NOTE: This setting is saved permanently including after powering
off the RA‑1570.
To temporarily change the display brightness, press the DIM L button on
the remote.
NOTE: Display Dimmer setting is only saved permanently from within
the Menu. Adjustment made using the L button is temporary only and
not saved after power off.
PC-USB Input q
Connect this input using the supplied USB cable to the USB socket of your
computer.
The RA‑1570 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 192kHz sampling rates you will need to install the Windows driver
supplied on CD included with the RA‑1570. You will also need to switch
the RA‑1570 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 “‑” key then press “ENTER”.
• Power cycle the RA‑1570 and reboot your PC after changing the USB
Audio mode to ensure both units are properly configured.
Many audio playback applications do not support 192kHz sampling rate.
Please confirm your audio player supports 192kHz audio and you have
192kHz audio files to properly playback this sample rate. Also, you may
need to configure the audio driver in your PC to output 192kHz 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 required installation of the Windows PC
driver on the CD ROM included with the RA‑1570.