8 English
Table 1: Suggested tone control settings for dierent acoustical environments
Bass
The “Bass” control oers three attenuation levels
for the bass response below 1 kHz, usually nec-
essary when the loudspeakers are placed near
room boundaries or other situations when the bass
sounds boomy and too dominant. The attenuation
levels are -2 dB, -4 dB and -6 dB. The -6 dB attenu-
ation is selected by setting both “Bass” switches to
“ON”.
The factory setting for the tone controls is all
in the “OFF” position. This setting produces a
flat frequency response in the free field, when
the loudspeaker is located far from all walls and
other acoustically hard boundaries. Always start
adjustment by setting all switches to “OFF” posi-
tion. Measure or listen systematically through the
dierent combinations of settings to nd the best
tonal balance.
Mounting considerations
Align the loudspeakers correctly
Always place the loudspeakers so that they are
aimed towards the listening position. Vertical place-
ment is preferable, as it minimizes acoustical can-
cellation problems between the drivers around the
crossover frequency.
Maintain symmetry
Check that the loudspeakers are placed symmetri-
cally 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
but not exactly at the center of the room. Place
the loudspeakers are at an equal distance from the
centerline and also at an equal distance from the
listening position.
Minimize reections
Acoustic reections from objects close to the loud-
speakers like desks, cabinets, computer monitors
etc. can cause unwanted blurring of the sound im-
age and also cause frequency response problems.
These can be minimized by placing the loudspeaker
clear of any hard surfaces.
Minimum clearances
Sucient cooling for the amplier and functioning of
the reex port must be ensured if the loudspeaker is
installed in a restricted space such as a cabinet or
integrated into a wall structure. The surroundings of
Loudspeaker Mounting Position Tabletop Bass Low Bass
Flat anechoic response OFF OFF OFF
Free standing in a damped room OFF OFF OFF
Free standing in a reverberant room OFF -2 dB OFF
In a corner OFF -6 dB If necessary
Near to a wall OFF -4 dB If necessary
On a desk ON -2 dB OFF
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