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Colour
Solid greed
Normal state, normal operation
Blinking green
GLM is adjusting the monitor
Monitor is in an ISS power saving sleep
Green blink every 10 sec.
state
Red blink
Power amplifier overload protection is
active (audio is modified because of
protection)
Solid red
Monitor is muted
Yellow
Monitor is not in the active (playing)
group
Yellow blinking
Overheat protection is active (audio is
modified because of protection)
Table 2. Monitor front panel light indications summary
Digital
The Digital switch selects the digital audio channels on the
AES/EBU. Turning both switches on reproduces the sum of the
A and B channels. When both channels are selected 6 dB of
attenuation is applied to avoid overloading the monitor.
Level
The Level switches reduce the monitor output in 10 dB steps
(-10 dB, -20 dB and with both switches set to ON, -30 dB). The
effects of these switches combine with the effect of the rotary
level adjustment control. The total setting range is 42 dB.
Stored
The Stored switch selects between the application of the
above listed controls on the monitor's back panel and applying
the settings stored inside the monitor memory using the GLM
calibration software. Setting the Stored switch to the OFF
position selects the settings defined by the monitor's controls.
Setting the Stored switch to ON position selects the use of
internally stored GLM settings. When the Stored switch is set
to the ON position the adjustments on the monitor have no
effect.
Operating Environment
This product is designed for indoor use only. The permissible
ambient temperature is 15-35 degrees Celsius (50-95°F) and
relative humidity 20% to 80% (non-condensing). To prevent
condensation of humidity, after the product has been stored
or transported in a cool environment and is then taken into a
warm room, wait 0.5-1 hours before opening the packaging and
connecting to the mains power.
Sufficient cooling around the 8331A must be ensured. The
minimum clearance behind, above and on both sides of the
monitor is 50 mm (2 in). If the product is installed in a recess,
the space must be ventilated sufficiently to dissipate the heat.
Mounting And Placing Monitors
Mounting Options
The vibration insulating Isolation Positioner/Decoupler™ (Iso-
Pod™) table stand allows tilting of the monitor. The stand
spring can be attached to three mounting points on the 8331A
enclosure, allowing the Iso-Pod to be used on one vertical and
two horizontal positions.
Indication
Aim the monitor so that its acoustic axis points towards the
listening position (see Figure 4). Place the monitors symmetrically
at equal distances from the listening position. If possible, place
the listening position on the left-right centerline of the room
(see Figure 5). When a monitor is placed far away (1.0-2.2 m,
3-7 ft) from the acoustically hard wall behind the monitor, an
acoustic reflection from the wall may cause cancellation of low
frequencies and reduce the bass output.
Minimize reflections by placing the monitors away from
acoustically reflective surfaces. Acoustic reflections from
objects like desks, cabinets and computer monitors can cause
unwanted coloration and blurring of the sound image. Putting
the monitors on stands behind and above a mixing console
usually improves the response over placing monitors on a meter
bridge. Symmetrical positioning of the sound reflecting objects
maintains a balanced soundstage (see Figure 5).
A wide variety of ceiling and wall mounts are available through
your Genelec dealer. Genelec 8331A can be fitted with König &
Meyer monitor mounts using two M6 x 10 mm threaded holes
on the enclosure back. There is also a 3/8 in UNC threaded hole
in the base of the monitor. Consult the Genelec Accessories
Catalogue at www.genelec.com or your local distributor/dealer
for information.
Normally, the light on the front panel is green, indicating normal
operational mode. Red and yellow colours are used to indicate
special situations. See Table 2.
In situations requiring deeper fundamental response or
multichannel
using the 7300 series subwoofers. For more detailed system
configuration and matching products, please consult the on-line
Genelec Product Selection Tool at www.genelec.com.
There are no user serviceable parts inside the monitor.
Maintenance or repair must only be done by Genelec certified
service personnel. The monitor enclosure must not be opened.
Opening the monitor may lead to loss of the individual monitor
factory calibration and damage to components.
Although the 8331A 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:
certified Genelec service personnel. The monitor enclosure
must not be opened.
or a mains connection without the protective earth contact
as this may lead to personal injury.
to water or moisture.
on the monitor or near it.
Front Panel Light
Use With Subwoofers
bass
management,
Maintenance
Safety Considerations
• Servicing and adjustment must only be performed by
• Do not use this product with an unearthed mains cable
• To prevent fire or electric shock, do not expose the unit
• Do not place any objects filled with liquid, such as vases
Genelec
recommends
5
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