Unison Research PRELUDIO - Connection to Mains; Operation

____________ Unison Research

Preludio
6
CONNECTION TO MAINS
Before connecting the mains cable and switching on, make
sure that your local power supply voltage corresponds to the
value shown on the rear panel of the unit.
IMPORTANT !
Never connect the amplifier to a mains supply of a different
voltage to that shown on the unit !
Mains fuses are located in the IEC mains input socket
located on the rear of the unit. The correct value is indicated on
the rear panel and also in the technical specifications at the end
of this manual.
If you need to replace a mains fuse, always use one of the
same type and rating !
OPERATION
After switching on, the Preludio needs about 30 seconds to
become operative.
This time is necessary to allow the valves to stabilise and
reach the operating temperature. The optimal temperature,
corresponding to the best sound performance, is reached after
about 15 minutes from switching on.
The subwoofer output is enabled after 60 seconds.
VOLUME CONTROL
Before swithcing on the unit, ensure that the volume control
is at the minimum (fully anticlockwise) position.