Level Control - Genelec 4020BMM Operating Manual

Figure 1: Location of the acoustic
axis
Figure 2: Audio and 12 V trigger
connector pin sequence
control wires can be connected to the first two
(starting from left) poles of the Phoenix connec-
tor (See Figure 2 for the connector pin sequence).
Remote control overrides the Autostart function.

Level control

The input sensitivity of the loudspeaker can be
matched to the output of the signal source by ad-
justing the level control on the rear panel.
Setting the tone controls
The frequency response of the Genelec 4020B
can be adjusted to match the acoustic environ-
ment by setting the tone control switches on the
rear panel. The controls are "Treble Tilt", "Bass
Tilt" and "Bass Roll-Off". An acoustic measuring
ACOUSTIC
AXIS
Figure 3: Control and connector layout on the rear panel
of an 4020B.
system such as WinMLS or comparable is recom-
mended for analyzing the effects of the adjust-
ments, however, careful listening with suitable
test recordings can also lead to good results if a
test system is not available. Table 1 shows some
examples of typical settings in various situations.
Figure 4 shows the effect of the controls on the
anechoic response.
Treble Tilt
The Treble Tilt control (switch 1) attenuates the
treble response of the loudspeaker at frequen-
cies above 5 kHz by 2 dB, which can be used for
smoothening down an excessively bright sounding
system.
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