Top Panel
Air Vents
‘Tact’ style standby
switch
When applying power to your Chapter Preface Pre-Amplifier for the first time please
ensure to operate the rear panel AC mains switch. This allows the pre-amp to
enter standby mode. Whilst in Standby mode the sensitive voltage gain stages are
still powered up to ensure that the unit will sound at its best after only a
short period of time. Whilst in standby mode the pre-amplifier draws around 3 watts.
Once the pre-amp is in standby mode the Perspex / Metal dome located on the top
of the amplifier will light red, and the knobs on the front panel will not be lit.
To fully activate the unit, touch the metal section of the dome located on the top of
the pre-amplifier, the disc will turn blue and the output relays will engage around 2
seconds later. The knobs on the front of the unit will both illuminate blue.
Alternatively, you can press either of the left or right hand knobs, as this will also
fully activate the unit.
To return the unit to standby mode, again touch the illuminated dome on
the top plate. If you wish to isolate the unit from the mains supply you must turn off
the amplifier using the rear panel mains AC switch.
If you will not be using the unit for long periods of time, for example going on
holiday, it is best to totally disconnect the amplifier from the AC mains by removing
the moulded plug from the wall socket.
10
Right Hand Knob
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