OWNERS MANUAL for Model SE84UFO3 PAGE 7
The volume control should be all the way down (counter-clockwise)
whenever the amplifier is first turned on and then slowly raised to the
desired listening level.
There is a small toggle switch located at the front of the amplifier just
in front of the input tube that is used to adjust the amount of input
tube bias.
Tube bias simply means how much current the tube is allowed to use.
In this amplifier, the 6N1P input tube and compa?ble alternate such
as 6922, 6DJ8, 7DJ8, 6N23P, 6N5P,6N11 can all be operated at more
than one bias point resul?ng in different sounds from each. There is
no right or wrong seing for any of the above men?oned tubes.
Simply listen to the amp with both seings and select the best one to
your ears.
NOTE: When opera?ng the bias switch while the amplifier is on, you
will hear a “pop” sound come from your speakers. This is normal and
harmless to your speakers, so it is an accepted prac?ce. The volume
control will have no effect on the loudness of the “pop” when you
operate the bias switch.
CONTROLS
VOLUME CONTROL
Bias Switch
BIAS SWITCH
Volume
