Rogue Audio Cronus - Manual (Page 5)

5
OPERATION OF THE AMPLIFIER
Powering up the System - After all proper connections have been made, you are now
ready to turn the Cronus integrated amplifier on. The power on/off switch is on the front
of the amp. Some 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) Power up Cronus amplifier
3) Select listening source and play music
When powering down your system turn the amplifier off first.
Note – Important! After turning off the amplifier, wait at least one minute to turn it
back on. Do not turn it on then off and then on again in quick succession. Doing this
will not allow the power supply to discharge between on/off cycling and may result in
transient noises.
Switches and Controls- The Cronus is equipped with volume, balance, source, and a
remote volume.
• Volume – adjust gain
• Balance - left and right channel balance
• Source – selects source material (PHONO, CD, AUX 1, and AUX 2)
• Power – on/off operation
• Remote Volume Control – The Cronus is equipped with an analog remote volume control feature.
The volume may be adjusted manually using the knob on the front panel, or by using the remote
control provided.
SETTING THE TUBE BIAS
Tools required: bias tool (provided with amplifier)
The output tubes (the big ones) need to be “biased’ with a grid voltage that controls the
flow of electrical current through the tube. Tube biasing on the Cronus amplifier has
been designed to be both simple and effective. On some amplifiers biasing is done for
two or more tubes simultaneously. With this method, the total current flowing through
the group of tubes may be correct, but the current flow through any individual tube may
vary significantly from the optimal value. With the Cronus amplifier the bias is set
individually for each tube so that the correct operating point is assured. An added
benefit to this approach is that, should a tube fail prematurely, the single tube can be
replaced without having to purchase a matched set. Use the following procedure to set
the tube bias:
WARNING – There are dangerous and potentially lethal voltages inside this
amplifier. Do not touch any part of the amplifier other than as described below. If
you are uncertain about any of these instructions, please contact your dealer and
have them bias the amplifier for you.