Level Control - Genelec 4030C Operating Manual

Figure 1: Location of the acoustic
axis
+
–
NON-
INVERTING INVERTING
Figure 2: Audio input pin sequence

Level control

The input sensitivity of the loudspeaker can be
matched to the output of the signal source by
adjusting the level control on the rear panel.
Setting the tone controls
The frequency response of the Genelec
4030C can be adjusted to match the acoustic
environment by setting the tone control
switches on the rear panel. The controls are
"Treble Tilt", "Bass Tilt" and "Bass Roll-Off". An
acoustic measuring system such as WinMLS
or comparable is recommended for analyzing
the effects of the adjustments, however, careful
listening with suitable test recordings can also
lead to good results if a test system is not
ACOUSTIC
AXIS
CONNECTOR
Figure 3: Control and connector layout on the rear panel of
an 4030C
GND
GROUND
Figure 4: Cable connection for daisy-chaining speakers
MAINS
WARNING: ELECTRIC SHOCK HAZARD. DO NOT OPEN. DO NOT
SUBJECT TO WATER OR MOISTURE. NO USER SERVICEABLE
PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.
USE EARTHED MAINS CONNECTION ONLY.
POWER AVERTISSEMENT: RISQUE DE CHOC ÉLECTRIQUE. NE PAS
OUVRIR. NE PAS EXPOSER À L'EAU OU L'HUMIDITÉ. AUCUN
COMPOSANT À L'INTÉRIEUR REMPLAÇABLE PAR L'UTILISATEUR.
ADRESSER TOUTE RÉPARATION À UN PERSONNEL QUALIFIÉ.
CET APPAREIL DOIT ÊTRE RACCORDÉ À LA TERRE.
LAITE ON LIITETTÄVÄ SUOJAKOSKETTIMILLA VARUSTETTUUN
PISTORASIAAN.
APPARATET MÅ TILKOPLES JORDET STIKKONTAKT.
APPARATEN SKALL ANSLUTAS TILL JORDAT UTTAG.
SWITCH
SUGGESTED TONE CONTROL SETTINGS
ON
OFF
1 2 3 4 5 1 2 3 4 5
-6 dB BASS -4 dB BASS
TILT TILT
FREE STANDING IN A ROOM:
ALL TONE CONTROLS OFF
MAINS
MAINS INPUT
4030C ACTIVE
50 / 60 Hz 60 W
100 - 240 V~
SPEAKER SYSTEM
MADE IN FINLAND
SERIAL NUMBER
This device complies with FCC Part 15 and Canadian
ICES-003 radio frequency Class B emission requirements.
Refer to operating manual for full information.
+
–
GND
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) boosts the treble
response of the loudspeaker at frequencies above 5
kHz by +2 dB, which can be used for compensating
for the high frequency loss at long distance.
Bass Tilt
The Bass Tilt control offers three attenuation levels
for the bass response of the loudspeaker below
2 kHz, usually necessary when the loudspeakers
are placed near a wall or other room boundaries.
THREADS FOR
WALL MOUNT
BRACKET
CONTROL
SWITCHES
ON
OFF
SENSITIVITY
MIN
MAX
ISS
TREBLE TILT +2 dB
BASS ROLL OFF -4 dB
-2 dB
BASS TILT -4 dB LEVEL ADJUSTMENT
-6 dB
SIGNAL
INPUT
BALANCED
www.genelec.com
+ - GND
SIGNAL
INPUT
CONNECTOR
3