Genelec 4030C User Manual

4
The attenuation levels are -2 dB (switch 3 “ON”),
-4 dB (switch 4 “ON”) and -6 dB (both switches
“ON”).
Bass Roll-O
Bass Roll-O (switch 3) activates a -4 dB lter to
the lowest bass frequencies (55 Hz). This can be
used for compensating excessively heavy bass
reproduction typically caused by loudspeaker
placement near room boundaries.
The factory setting for all tone controls is
“OFF” to give a at anechoic response. Always
start adjustment by setting all switches to “OFF”
position. Measure or listen systematically through
the dierent combinations of settings to nd the
best frequency balance.
Mounting considerations
Align the loudspeakers correctly
Always place the loudspeakers so that their
acoustic axes (see gure 1) are aimed towards the
center of the listening area. Only vertical placement
is preferred, as it minimises acoustical cancellation
problems around the crossover frequency.
Minimise reections
Acoustic reflections from objects close to the
loudspeakers like walls, cabinets etc. can cause
unwanted colouration blurring of the sound
image. These can be minimised by placing the
loudspeaker clear of reective surfaces.
Minimum clearances
Sucient clearance for cooling of the amplier and
functioning of the reex 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 the loudspeaker must always
be open to the listening room with a minimum
clearance of 3 centimeters (1
3
/
16
”) behind, above
and on both sides of the loudspeaker. The space
adjacent to the amplier must either be ventilated
or sufficiently large to dissipate heat so that the
ambient temperature does not rise above 35
degrees Celsius (95°F)
Mounting options
The Genelec 4030C oers several mounting
options: On the base of the loudspeaker is
a 3/8” UNC threaded hole compatible with
a standard microphone stand. On the rear
there are two M6x10 mm threaded holes
Table 1: Suggested tone control settings for diering acoustical environments
Loudspeaker Mounting Position Treble Tilt Bass Tilt Bass Roll-O
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
Near eld or desktop OFF -4 dB OFF
Near to a wall OFF -6 dB OFF

Genelec 4030C Specifications

General

Brand	Genelec
Model	4030C
Category	Speakers
Language	English