INSTALLATION OF THE VACUUM TUBES
Place the Lybra amplifier on a stable surface. Carefully remove the vacuum tubes from their
packaging and install them in the appropriate sockets, according to the stickers on tube
boxes
starts from a left side
.
The pins in the base of each of the vacuum tubes are “coded”, and this has the result that
the insertion of the vacuum tube into the socket is possible only in one correct and
appropriate orientation. If, whilst inserting the vacuum tube you sense resistance, and you
can not push the tube into the socket, please check the orientation of its pins, rotate the
tube to the correct position and try again.
WHERE TO PLACE YOUR AMPLIFIER
Due to the presence of high temperatures during normal operation of the vacuum tubes, the
location that you pick to place your amplifier should ensure ample ventilation, a free flow of
air. Please maintain at least 10 cm clearance between the housing of the amplifier, together
with the vacuum tubes, and other devices or elements of the interior. The sound quality may
be degraded as a result of vibrations. Therefore we recommended to place the amplifier on
a flat and stable surface.
CONNECTIONS_______________________________________
1) source signal inputs
2) speakers outputs for the right channel
3) speakers outputs for the left channel
4) mains switch
5) socket for the main fuse
6) IEC power supply cord socket
The figure above shows the rear panel view of the Fezz Audio Lybra amplifier, together with
the description of the inputs and outputs allowing for connection of the other elements of
your audio system.
7
Summary of Contents for Lybra 300 B
Page 1: ...USER S MANUAL...