Octave JUBILEE MONO SE, Owner'S Manual

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5. ADVANCED FUNCTIONS
5.5. Muting function
LED B indicates the Muting function in the
display. The Muting function is a helpful feature
that allows you to connect or disconnect signal
cables to the JUBILEE MONO SE power
amplifiers without switching off the unit. While “Muting” is active the bias of the tubes
is regulated to 0. Therefore it takes a few
seconds until the amplifier is playing again
after switching off the Muting. Once the input
is released the LED near the input jacks lights
up.
5.6. Ecomode (power saving mode)
The Ecomode serves to reduce heat and
unnecessary power consumption when the unit
is switched on but not in use. After 10 minutes
without receiving signal the Ecomode is turning
down the power of the Tube Output stage. In
this “sleep” mode, the JUBILEE MONO SE
draws less than 100 W Idle current compared to
approx 300 W in normal operation mode.
Therefore the running unit produces no heat,
because the heater voltage and the high
voltage of the power amplifier section are
switched off. When the music signal is sensed
once again by the Ecomode electronic, the
Ecomode circuit will turn the unit back on, with
a warm-up/start-up delay of approximately 60
seconds until the unit will be operational.
The Ecomode also serves to increase the
lifetime of the tubes, while having an added
benefit of
improved safety allowing the
JUBILEE MONO SE owner a level of security
against any problems when leaving the unit
powered on. The Ecomode is a safety and
energy-saving feature that is unique in our
amplifier range.
Eco off: The Ecomode electronic is off. The
JUBILEE MONO SE is permanent in
operation.
Eco on : The Ecomode electronic is
activated. After a period of 10 min
without receiving a signal from the
preamp the Ecomode electronic is
turning the JUBILEE MONO SE
down. This is indicated through the
LEDs A + B
Note:
If you switch on the JUBILEE MONO SE with
Ecomode active, it will go through the start
procedure. If it fails to detect a music signal, it
will shut down after 10 minutes. Ecomode is
not the same as standby, however, because
certain sections of the amplifier remain on.
Important!
You cannot adjust the bias in Ecomode once
the amplifier has powered down!
The signal switching level of 0.5mV results in
approx. 40µW output power of the JUBILEE
MONO SE. In case of a speaker with a high
efficiency an adjusted listening level can be
lower than this value. The Ecomode would
drive the unit down. In such cases the
Ecomode should be switched off
5.7 Remote operation
The remote control input allows remote
operation of the JUBILEE MONO SE amplifiers
driven by a control voltage of a preamplifier.
The remote control input is a 6.3mm mono plug
 . Such a cable is available from us or the PA
accessories market. Normally used for
microphones.
The remote input is not connected to any other
voltage inside the JUBILEE MONO SE power
amplifier. Control voltage and current for the
JUBILEE MONO SE is 12V, 50mA.
The Jubilee preamp is equipped with two
remote switch output jacks on the rear front of
the power supply of the preamp.