User Manual

Setting the tone controls
The frequency response of the Genelec M030 and
M040 can be adjusted to match the acoustic envi-
ronment by setting the tone control switches on the
rear panel. The controls are “Bass Level” and “EQ”.
Table 1 shows typical settings in various situations.
Figures 4 and 5 show the effect of the controls on
the response.
Bass Level
The Bass Level control is usually necessary when
the loudspeaker is placed near a wall. The attenu-
ation levels are -2 dB and -4 dB. The central posi-
tion of the toggle switch (Free space) suits a situa-
tion when the loudspeaker is placed far away from
walls.
EQ
The “EQ” switch has two functions (in its central posi-
tion there is no effect):
1. Tabletop EQ
This function is recommended when the loudspeak-
ers are placed on a table. Such a placement typically
causes coloration at low midrange, which the “Table-
top EQ” function is designed to compensate for.
2. Bass EQ
This function attenuates bass frequencies below
200 Hz when the loudspeaker is located near a cor-
ner. This can compensate for excessively heavy and
boomy bass reproduction.
Mounting considerations
Align the loudspeakers correctly
Always place the loudspeakers so that their acoustic
axes (see figure 1) are aimed towards the listening
position. Proper vertical placement is preferred, as it
provides the best linear frequency response around
the crossover frequency.
Maintain symmetry
Check that the loudspeakers are placed symmetrically
and at an equal distance from the listening position. If
possible, place the system so that the listening position
is on the centerline of the room and the loudspeakers
are placed at an equal distance from the centerline.
Minimize reflections
Acoustic reflections from objects close to the loud-
speakers like desks, cabinets, computer monitors etc.
can cause unwanted colouration of sound. This can be
minimized by placing the loudspeaker away from re-
flective surfaces. For instance, putting the loudspeak-
ers on stands behind and above the table and tilting
them down to point towards the listening position usu-
ally gives a better result than placing the loudspeakers
directly on the table.
Minimum clearances
Sufficient clearance for cooling and functioning of the
reflex ports must be ensured. The minimum clearance
Figure 3. Attach the foam patches to the underside of
the loudspeaker as shown.