Mounting Considerations - Genelec 8020A Operating Manual

Speaker Mounting Position
Flat anechoic response
Free standing in a damped room
Free standing in a reverberant room
Near field or console bridge
Near to a wall
With a 7050B subwoofer
Table 1: Suggested tone control settings for differing acoustical environments
also lead to good results if a test system is
not available. Table 1 above shows some ex-
amples of typical settings in various situations.
Figure 4 shows the effect of the controls on
the anechoic response.
Treble Tilt
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.
Bass Tilt
Bass Tilt control offers three attenuation levels
for the bass response of the loudspeaker below
2 kHz, usually necessary when the loudspeak-
ers are placed near a wall or other room bound-
aries. The attenuation levels are -2 dB (switch
3 "ON"), -4 dB (switch 4 "ON") and -6 dB (both
switches "ON").
Bass Roll-Off
Bass Roll-Off (switch 2) activates high-pass
filtering at 85 Hz to complement the low-pass
filters of a Genelec 7050B or 7050A subwoofer.
This switch should always be set to "ON" when
using the 8020A with these subwoofers.
Treble Tilt Bass Tilt
OFF OFF
OFF OFF
OFF -2 dB
OFF -4 dB
OFF -6 dB
See above See above
The factory setting for all tone controls is "OFF"
to give a flat anechoic response. Always start
adjustment by setting all switches to "OFF" po-
sition. Measure or listen systematically through
the different combinations of settings to find the
best frequency balance.

Mounting considerations

Align the loudspeakers correctly
Always place the loudspeakers so that their
acoustic axes (see figure 1) are aimed towards
the listening position. Only vertical placement is
preferred, as it minimises acoustical cancella-
tion problems around the crossover frequency.
Maintain symmetry
Check that the loudspeakers are placed sym-
metrically and at an equal distance from the
listening position. If possible, place the system
so that the listening position is on the center-
line of the room and the loudspeakers are
placed at an equal distance from the centerline.
Minimise reflections
Acoustic reflections from objects close to the
loudspeakers like desks, cabinets, computer
monitors etc. can cause unwanted coloura-
tion blurring of the sound image. These can be
Bass Roll-Off
OFF
OFF
OFF
OFF
OFF
ON