Connections
Power
Mains supply connection is through a detachable power cable
with an IEC-type connector. The mains power switch is
mounted on the front panel of the amplifier.
Signal — Phono In and Phono Out
The input and output signal connections are made to the RCA
sockets on the back panel of the amplifier.
Installation
Good ventilation should be provided around the preamplifier.
The tubes generate a fair amount of heat, and natural
ventilation is necessary to dissipate this heat to the
surroundings. The amplifier chassis will get warm, but should
still be comfortable to touch.
Always place the amplifier on a firm, smooth surface.
Fuses
! Warning : In operation, this preamplifier has very high
voltages. Always switch off, and unplug the amplifier
from the mains supply before working on it. Wait for 5
minutes for the high voltages to die down, before
opening the amplifier!
The preamplifier is protected against overload by a fuse at
one point only. This is the mains supply fuse, mounted on the
rear panel and is easily accessed from the outside.
Mains supply fuse 1 A, 250 V (RQB 1000)
On operation of the preamplifier, if the fuse does blow, check
all possible causes before replacing the fuse. If any doubt
remains, contact Lyrita Audio for servicing.