one hour before opening packing to prevent
condensation of humidity before connecting
to mains power.
Minimum Clearances
Do not cover the amplifier or place it in
a closed cabinet. The space must be
ventilated or sufficiently large to dissipate
heat so that the ambient temperature does
not rise above 35 degrees Celsius (95°F).
The reflex port opening on the enclosure
should have a clearance of at least 20 cm
(8 in) to ensure functioning of the reflex port.
Flush Mounting
When the subwoofer is flush mounted in a
wall or cabinet, ensure unrestricted airflow
in the reflex port and amplifier cooling.
Make the recess 20 cm (8 in) wider than the
subwoofer. Place the subwoofer to the right
side of the recess if the driver is facing the
room. This leaves sufficient free space at
the reflex port side. The height and depth of
the recess should not be much bigger than
what is needed as this may cause unwanted
acoustic effects.
Using Multiple Subwoofers
Multiple Genelec 7382A subwoofers can be
coupled together in high SPL applications.
The necessary cabling is different for digital
and analog signals. When subwoofers
are close to each other, the sound level
increases typically by 6 dB for each
doubling of the number of subwoofers.
When subwoofers are far from each other,
the total increase in the sound level can
be less. It is safe to assume the increase
is 3 dB for each doubling of the number of
subwoofers. Accurate understanding of the
increase in sound level requires acoustic
measurements.
Digital Cabling
Run a signal cable from the THRU AES/
EBU connector of the first subwoofer in the
chain to the IN Digital connector of the next
subwoofer.
Analog Cabling
When daisy-chaining multiple subwoofers
with analog signals, run cables from the OUT
1 and 2 connectors to the next subwoofer’s
IN 1 and 2 connectors. The LFE channel has
no output connector and can not be daisy-
chained.
Maintenance
There are no user serviceable parts inside the
subwoofer or the amplifier unit. Maintenance
or repair must only be done by Genelec
certified service personnel.
Guarantee
Genelec guarantees the subwoofers for two
years against manufacturing faults or defects
altering performance. You can extend the
guarantee to five years by registering the
product at www.genelec.com. Refer to the
reseller for full sales and guarantee terms.
Figure 7. Examples of subwoofer
positioning. 1 and 2 are good starting
positions for a single subwoofer and
also work well with two linked subwoof-
ers. Position 3 causes a significant
bass boost and may cause asymmetric
spatial imaging if only one subwoofer
is used. Position 4 also works best with
two subwoofers. Flush mounting (pos.
5) generally works well.
20
cm
(8
”)
f ~ 2-8 Hz
HEAVY WOODEN
OR CONCRETE
WALL
VIBRATION
ISOLATORS
HEAVY
WOODEN
OR
CONCRETE
WALL
ABSORBING
MATERIAL
VIBRATION
ISOLATORS
f ~ 2-8 Hz
ABSORBING
MATERIAL
HEAVY
WOODEN
OR
CONCRETE
WALL
VIBRATION
ISOLATORS
f ~ 2-8 Hz
Figure 3. Flush mounting the
subwoofer in a non-absorbing wall.
Figure 4. Flush mounting the
subwoofer in a semi-absorbing wall.
Figure 5. Incorrect flush mounting the
subwoofer in a semi-absorbing wall.
Figure 6. Clearance needed on the reflex port side.
3
1
3
5
4
4
2
