When powering up the amplifier, if the
Power Button continues to flash, this
may indicate that the amplier to monitor
enclosure cabling is not correctly connected.
Check the cabling, power down the amplier
and power up the amplier again to see if the
ashing is resolved.
Resetting the Amplifier
Settings can be permanently stored into
the RAM-81 amplifiers. These settings
will automatically be applied when the
amplier turns on unless the GLM network is
connected and the GLM software is running.
To reset the RAM-81 amplier settings to
the factory defaults, turn on the ampliers.
After the amplier is on, continuously press
the power button on each amplier for at
least 10 seconds. The amplier will indicate
this by starting to beep. Release the button
and the restoration of factory defaults
begins.
After the factory reset, no room-related
settings exist in the RAM-81 ampliers and
the input sensitivity is restored to the factory
default settings.
ISS™ Settings and Energy Saving
GLM software can power down and power
up all the monitors.
GLM software can also be configured
to automatically power down and up the
monitoring system when the GLM software
exists or is started again in the computer.
Genelec recommends GLM software
management.
The Intelligent Signal Sensing™ (ISS™) is
an automatic energy saving features inside
each monitor and can automatically put the
monitor into a power-saving stand-by mode.
The factory setting for ISS is 'OFF', where
the monitor never enters the power save
mode. ISS can be activated and congured
using GLM software (see Figure 5). The ISS
setting is shared by all ISS-enabled monitors
in the currently selected GLM Setup.
When ISS is active, if no audio signal is
sensed during the selected time, the monitor
powers down. The monitor powers up again
once a signal is detected. AES digital audio
is sensed even if the content of audio is total
silence. To enable ISS with a digital audio
input, the AES connection to the monitor
must stop transmitting. When the AES data
is zero and the channel is silent, this does
not activate the ISS.
Maintenance
Periodically check that the protective
grilles on the cooling fans of the RAM-81
ampliers. Clean them gently with a vacuum
cleaner, if necessary. Increased fan noise
can indicate reduced air circulation and the
need for cleaning. In an extreme condition,
the amplier may automatically shut down
to cool.
Safety Warnings
The 8381A monitor is capable of playing
sound levels signicantly in excess of 100
dB SPL. The monitor may cause traumatic
and permanent hearing damage from even
a single, short duration incident. Precautions
must be taken to prevent unwanted or
accidental excessive sound levels, and
hearing protection should be always worn
when working in the vicinity of a powered
system.
Genelec recommends that the sound
exposure of the personnel operating the
8381A system does not exceed the limits
set out in the noise at work directive by the
European Commission, Directive 2003/10/
EC. In case local requirements are more
conservative, the more conservative limits
should be observed.
Although 8381A has been designed
in accordance with international safety
standards, to ensure safe operation and to
maintain the monitor under safe operating
conditions, the following warnings and
precautions must be observed:
• Servicing and adjustment must only
be performed by a certied Genelec
service. The monitor enclosure or the
RAM-81 amplier unit must not be
opened as this may result in loss of
accurate acoustic calibration.
• Do not use this product with an
unearthed mains cable or a mains
connection without the protective earth
contact as this may lead to personal
injury.
• To prevent re or electric shock, do not
expose any part of the product to water
or moisture.
• Do not place any objects lled with
liquid, such as vases on or near any part
of the product.
• The 'SPEAKER' connectors on
the RAM-81 ampliers can output
hazardously high voltages. To ensure
safety, the wiring connected to these
connectors must be installed by a
qualied and trained person, unless the
included wiring assembly is used.
• Note that the amplier is not completely
disconnected from the AC mains service
unless the mains power cord is removed
from the amplier or the mains outlet.
Easy access to either end of the power
cord must be ensured at all times.
• Observe the minimum clearances.
Sucient clearances, free ow of air
around the RAM-81 amplier as dened
in chapter 'Operating Environment' and
maintaining the ambient temperature
within limits are necessary to maintain
sucient cooling.
Symbols
WEEE Directive 2012/19/EU
Power/standby switch
IEC 60417-6044 symbol
Compliance to FCC Rules
This device complies with part 15 of the FCC
Rules. Operation is subject to the following
two conditions:
• This device may not cause harmful
interference, and
• This device must accept any interference
received, including interference that may
cause undesired operation.
Note: This equipment has been tested and
found to comply with the limits for a Class B
digital device, pursuant to part 15 of the FCC
Rules. These limits are designed to provide
reasonable protection against harmful
interference in a residential installation.
This equipment generates, uses and can
radiate radio frequency energy and, if not
installed and used in accordance with the
instructions, may cause harmful interference
to radio communications. However, there
is no guarantee that interference will not
occur in a particular installation. If this
equipment does cause harmful interference
to radio or television reception, which can