15
7) Adjusting amplifier settings
It is possible to adjust the audio equalisation of the amplifier to suit a specific
environment or taste. There are separate settings for the internal Jukebox speakers
(Channel 1/2) and any additional speakers that may be connected (Channel 3/4).
Pressing the ‘MENU UP’ or ‘MENU DOWN’ buttons on the D4 amplifier will cycle
through the available menus. Pressing the ‘+’ or ‘-‘ buttons will increment or
decrement the value of the current menu. Any changes will be automatically saved.
(The location of these buttons is shown in Fig 8 on page 13) If no buttons are
pressed for 1 minute, the amplifier will revert back to its default display mode.
Below is a description of the available menus:
Channel 1 Stereo / Mono Switch
This menu is used to set the amplifier in Stereo or 2 channel Mono
This should be left as ‘Stereo’.
Channel 1 Master
This menu sets the maximum volume level that can be achieved with the remote and
should be used to set a maximum level for the Jukebox speakers.
Channel 1 Bass
This menu sets the bass level of the Jukebox speakers.
It can provide a cut or boost of 15dB.
Channel 1 Middle
This menu sets the middle level of the Jukebox speakers.
It can provide a cut or boost of 15dB.
Channel 1 Treble
This menu sets the treble level of the Jukebox speakers.
It can provide a cut or boost of 15dB.
Channel 1 Microphone Volume
If you wish to use a microphone we recommend a wired low impedence mic. If you
wish to use a wireless microphone please contact Crosley Brands.
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