Instrukcja obsługi Genelec 4020C
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4020C
Operating Manual
2
General
The bi-amplied Genelec 4020C is an extremely
compact two way active loudspeaker designed for
xed installations. As an active loudspeaker, it con-
tains drivers, power ampliers, active crossover l-
ters and protection circuitry. The 4020C is designed
for indoor use only, in temperatures between 15 to
35 degrees Celsius and relative humidity between
20 % and 90 %.
The MDE™ (Minimum Diraction Enclosure™)
loudspeaker enclosure is made of die-cast alumin-
ium and shaped to reduce edge diraction. Com-
bined with the advanced Directivity Control Wave-
guideTM (DCWTM), this design provides excellent fre-
quency balance in dicult acoustic environments.
Positioning the loudspeaker
Each 4020C is supplied with an integrated ampli-
er unit, mains cable, a 3-pin balanced Euroblock
connector for audio signal, a keyhole type wall-
mount and an operating manual. After unpacking,
place the loudspeaker in its required listening posi-
tion, taking note of the line of the acoustic axis. The
axis should be pointed towards the center of the
listening area.
Connections
Before connecting up, ensure that the loudspeakers
and the signal source have been switched o. The
power switch of the 4020C is located on the back
panel (see Figure 3). Connect the loudspeaker to an
earthed mains connection with the supplied mains
cable. Never connect the loudspeaker to an un-
earthed mains supply or using an unearthed mains
cable. Audio input is via a 10 kOhm balanced
connector. The pin sequence of the connector is
shown in Figure 2.
Connect the signal cable to the 3-pole plug pro-
vided with the loudspeaker and secure the con-
nections by tightening the screws on each pole.
Push the plug into the connector on the loud-
speaker.
If you want to daisy-chain multiple loudspeak-
ers, simply connect a second signal cable to the
plug and use it to route the signal to the next loud-
speaker (see Figure 4).
Never connect the 4020C to the loudspeaker
outputs of a power amplier or an integrated am-
plier or receiver.
Once the connections have been made, the
loudspeakers are ready to be switched on.
ISSTM Autostart
The automatic power saving function ISS (Intelli-
gent Signal Sensing) can be activated by setting
the “ISS” switch on the back panel to “ON.” Auto-
matic powering down to standby mode happens
after a certain time when playback has ended. The
power consumption in standby mode is typically
less than 0.5 watts. Playback will automatically
resume once an input signal is detected from the
source.
There is a slight delay in the automatic pow-
ering up. If this is undesirable, the ISS TM function
can be disabled by setting the “ISS” switch on the
back panel to “OFF.” In this mode, the loudspeak-
er is powered on and o using the power switch
on the back panel.
4020C
Active Loudspeaker
3
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 4020C
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-O”. An acoustic measuring
system such as WinMLS or comparable is recom-
mended for analyzing the eects 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 5 shows the eect of the controls on the
anechoic response.
Treble Tilt
The Treble Tilt control (switch 2) boosts the treble
response of the loudspeaker at frequencies above
4 kHz by +2 dB, which can be used for compensat-
ing for the high frequency loss occurring at long
listening distance, o-axis listening or when the
loudspeaker is placed behind a screen or decora-
tive cloth.
Bass Tilt
The Bass Tilt control oers 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.
Figure 1: Location of the acoustic
axis
Figure 3:
Control and
connector
layout.
Figure 2: Audio input pin sequence
+
NON-
INVERTING
–
INVERTING
GND
GROUND
+
–
GND
Figure 4: Cable connection for daisy-chaining speakers
ACOUSTIC
AXIS
146 mm
> 0,7 m
292-4020CT
SERI AL NUMBER
This devicecomplies with FCCPart 15 a ndCanadian
ICES -003 radiofrequency Cla ss B emissionrequirements.
Refer tooperatin anuag m l forfull information.
SIGN AL
INPU T
+ GND-
4020C
ACTIVE
SPEAKER SYST EM
MADE INFIN LAND
MAIN S INPU T
50 / 60 Hz 6 0 W
100 - 240 V~
www.genelec.com
292-8030W
WARNING:ELECTRI HOCKHAZ ARDC S . D O NOTOPEN. DONOT
SUBJECT TEROR MOISTURE. NOUSER SERVICEABLETO WA
PART TOS I NSIDE.REFER SERVICING QUALIFIEDPERSONNEL.
USEEARTHED MAIN ONNECTIONON .S C LY
AVERTISSEMENT:RISQUEDECHOC ÉLECTRIQUE.NE SPA
OUVRIR.N E PAS EXPOSER 'EAUOU L'HUMIDITÉ. AUCUNÀ L
COMPOSANT 'INTÉRIEURREMPLAÇABL ARL'UTILISATEUR.À L E P
ADRESSER UTE RÉPAR IO UN PERSONNELQUALIFIÉ.TO AT N À
CETAPPAREI O ITÊTRE RACCORDLD É À LATERRE.
LAITEON LIITETTÄVÄ SUOJAKOSKETTIMILLAVARUSTETTUUN
PISTORASIAAN.
APPARATETMÅ TILKOPLESJORDETSTIKKONTAKT.
APPARATENSKALL ANSLUTASTILLJORDAT UTTAG.
ON
OFF
IS S
FREESTANDING IN OOM:AR
AL ONLT E CONTROLSOFF
-6dB BASS
TILT
-4dB BASS
TILT
TREBLE TI + 2 dBLT
BAS S ROLLOFF -4dB
-2 dB
BAS S TI -4 dBLT
-6 dB
SUGGESTED NE CONTROLTO
SETTINGS ON
OFF
IS S
FREESTANDING IN OOM:AR
AL ONLT E CONTROLSOFF
-6dB BASS
TILT
-4dB BASS
TILT
TREBLE TI + 2 dBLT
BAS S ROLLOFF -4dB
-2 dB
BAS S TI -4 dBLT
-6 dB
REFLEX PORT
TONE CONTROLS
CONNECTOR PANEL
(HORIZONTAL)
THREADS FOR
CEILING AND
WALL MOUNTS
POWER SWITCH
SENSITIVITY CONTROL
Specyfikacje produktu
| Marka: | Genelec |
| Kategoria: | monitor |
| Model: | 4020C |
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