Operating instructions
The 840A V2 has a
Volume
Mode
Volume
Adjust the volume control knob on the front panel (or using the remote control). The display will show the change in volume in decibels (dB). ‘OdB’ indicates maximum volume while lower volume settings progress into the negative range. This can also be changed to volume units
Speaker A/B
Speaker A/B
Volume
Press the Speaker A/B button to scroll through the speaker sets connected via the rear panel: speakers A, B or A and B.
Balance
Mode
Volume
Press the Mode button to enter Balance mode. BALANCE will appear on the display and can be adjusted using the volume control. Press the Mode button again to return to Volume mode or wait 5 seconds for the 840A V2 to automatically exit Balance mode.
Bass and Treble
These controls allow subtle adjustments to the tonal balance of the sound. Modify the sound through your loudspeakers and the
Bass Treble Direct
This completely removes them from the signal path for maximum fidelity. If the musical recording is of poor quality or other factors are affecting the sound quality, if desired you can adjust the tone controls to compensate. To use the tone controls press the Direct button so that the Bass/Treble icon ( 
) lights in the display indicating that they are active and direct mode is Off. Now press the Bass or Treble controls themselves to release them and allow adjustment; push them back in when finished:
Bass Treble Direct
The 840A V2 stores whether direct mode is on or off for each input individually, for example it is possible to have the tone controls automatically active for the Tuner source but not the CD source.
Amplifier setup
The 840A V2 features many advanced settings that allow it’s use to be customised to user preference. The inputs can be named to reflect the actual source units you have, each input can be trimmed so that each sounds the same in terms of loudness when you switch between them and other options.
Changing input names / source naming
Mode
Volume
Press and hold the relevant input select button for four seconds to change its name. For example, if Input 1 is a CD player, name it “CD” etc. Letters are selected by turning the volume control to scroll through the available characters. Press LEFT or RIGHT to select which character you wish to edit. Press EXT CHAR to access an extended character set. Press OK to confirm and exit the input name change menu.
System Configure menu
Mode
Volume
Press and hold the Mode button to access the System Configure menu. The menu options are Clip detector, LCD brightness, Speaker short detector, Input gain trim, Volume ramp, Volume display, Front IR and Fixed input gain.
To exit the System Configure menu and its
Clip detector / Speaker short detector
Refer to the ‘CAP5’ section of this manual for more information on the Clip and Short detection features of the 840A V2, as both can be enabled (default) or disabled.
LCD brightness
Mode
Volume
In the System Configure menu press the LCD input select button to scroll through bright/dim/off settings for the front panel display. Press the Mode button to exit.
Volume ramp
Mode
Volume
The 840A V2 automatically ramps the volume down when going into Standby mode and up when coming out of Standby mode. To turn this feature off, press the VOL RAMP input select button in the System Configure menu and set to off. Press the Mode button to exit.
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