Figure 6: Connector layout on the back panel of the RAM3 amplifier
Figure 7: RAM3 front panel layout
Figure 8: Dimensions of the RAM3 amplifier
Sufficient cooling for the amplifier must be
arranged at all times. As a general rule, the
ambient temperature around the amplifier
must not exceed 35 degrees Celsius (95°F).
The ventilation openings on the amplifier
box must not be blocked and a free space of
1 U (=1.75" or 45 mm) must be left above
the amplifier when installed. This space must
be sufficiently ventilated to maintain the tem-
perature below the maximum level.
If the RAM3 amplifier is placed on a shelf
or other solid surface, the metal support
provided with the amplifier must be attached
to the lower part of the amplifier front panel
with an M4 screw. This improves the stability
of the amplifier and provides sufficient clear-
ance for air circulation below the amplifier.
Rack Mounting the RAM3
Amplifier
We recommend using the Genelec RM2 rack
mount adapter when installing the RAM3
amplifier in an equipment rack. Make sure
that the space above and below the RAM3 is
uncluttered and there is a space of 100 mm
(4”) or more behind the amplifier. The space
behind the amplifier must be well ventilated.
If the temperature inside the rack is likely to
rise close to the maximum ambient tempera-
ture of 35° C (95° F), we recommend install-
ing ventilation fans to ensure that the thermal
protection is not activated prematurely.
Attach the RAM3 to the RM2 rack mount
with two M4 screws provided with the rack
mount kit.
Setting the Input Sensitivity
The input sensitivity control is located on the
front panel of the RAM3 amplifier. Use this
control to adjust the playback level of the
subwoofer.
Setting the Bass Roll-Off
switches
The acoustic response of the subwoofer may
have to be matched to the characteristics
of the room and its position in the room. To
adjust the subwoofer to match these charac-
teristics use the "BASS ROLL-OFF" control
switches located on the amplifier front panel.
When all Roll-Off switches are "OFF", a flat
anechoic response is obtained.
Setting the phase control
The effect of incorrect phase align-
ment between the main loudspeakers
and subwoofer is a drop in the frequency
response of the whole system at the main
loudspeaker / subwoofer crossover fre-
quency. The phase difference between the
main loudspeakers and subwoofer at the lis-
