![background image](http://html1.mh-extra.com/html/octave/re-320/re-320_owners-manual_723774016.webp)
17
6. ADVANCED FUNCTIONS
6.3. Electronic Protection System
The RE 320 features a comprehensive electronic monitoring and protection system. This system will
automatically switch off the RE 320 in case of a fault occurring in the power section.
The protection system has been designed to keep the unit safe from the consequences of overloads
of any kind and to protect the output tubes from current surges.
The RED “Protection” LED lights up to indicate that the protection system has tripped.
The amplifier will not play music once the protection system has tripped and you will
not be able to check or adjust the BIAS setting.
The BIAS LEDs will show "yellow" for each of the four output tubes.
If a Black Box or a Super Black Box is connected to the RE 320, the front panel (operate) LED of the
Black Box / Super Black Box will go out. If the Super Black Box is connected, tripping the protection
system will automatically activate the discharge circuit of the Super Black Box (see chapter 8.2).
The following conditions can cause the protection system to trip:
-
Overdriving the RE 320 to excessive levels or with excessive levels of low frequency.
-
A speaker cable short circuit while the speakers are being driven at high listening levels.
-
A fault in one or more of the output tubes.
-
A fault in one of the preamp tubes which overloads the output stage.
Once the protection system has cut in, the only way you can turn the RE 320 back on,- is to turn the
on/off switch off and then on again. Allow the unit two minutes to cool down before switching it back
on. If possible, identify and eliminate the cause of the problem (see chapter 9 "Troubleshooting").
If it is not clear what has caused the protection system to trip, we recommend that you check the
BIAS before attempting to use the amplifier again. Tube faults can often result in widely varying BIAS
settings. When these settings exceed a particular value they can cause the protection system to trip.
6.4 Muting Function
The Muting Function is switching Off the RCA and the XLR Inputs of the unit. In this way you can
connect or change the cables without the need of switching Off the unit. You can connect or
disconnect the signal or speaker cables in this mode.
6.5 Electronic Balanced Input Circuit
As standard the Balanced Input is equipped with a precision low noise electronic balanced input
receiver. The Gain of this converter is -6dB, which means that in case of the usual +6dB of the
balanced signal of an electronic balanced preamplifier you will have the same Output level in respect
to the RCA connection.
Summary of Contents for RE 320
Page 1: ...RE 320 Owner s Manual English ...
Page 33: ...34 ...