4
OPERATION OF YOUR AMPLIFIER
After all proper connections have been made you are now ready to turn the
amplifier on. The main power on/off switch is on the rear of the amplifier and
should be left on at all times. A small amount of power is used by the amplifier to
maintain a ready state which keeps the solid state components warmed up for
better performance. The power switch on the front of the amp is used to turn on
and off the tube circuitry as well as to take the solid state components out of their
standby mode. There are three LED’s on the front panel as shown in figure 2.
The yellow LED indicates that the amplifier is in standby mode. The blue LED
indicates that the amplifier is fully operational. The red LED indicates that a
problem has occurred (shorted speaker terminals or other source of overcurrent).
When the unit is first plugged in and the rear switch is turned on the red LED will
blink briefly and then the yellow standby LED will be illuminated. When the front
power button is first depressed both the blue and yellow LED’s will be
illuminated. After approximately 10 seconds the yellow LED will turn off
indicating that the amplifier is operational and ready to play music.
Figure 2
Some preamplifiers and sources can generate dangerous transients that can
damage loudspeakers. To avoid letting dangerous transients reach your
loudspeakers turn your system on in the following order:
1)
Turn on all sources (CD, tuner, etc.) that you will be using.
2)
Turn on the preamplifier.
3)
Wait until the preamplifier has stabilized.
4)
Power up the amplifier
5)
Select listening source and play music
When powering down your system turn the amplifiers off first.
Note – After turning off the amplifiers, wait at least one minute to turn them back
on. Do not turn them on then off and then on again in quick succession. Doing
this will not allow the power supplies to discharge between on/off cycling and
may result in dangerous transient noises.
Standby LED (yellow)
On/running LED (blue)
Error LED (red)
