Positioning The Loudspeaker; Active Loudspeaker - Genelec 4020C Operating Manual

General
The bi-amplified Genelec 4020C is an extremely
compact two way active loudspeaker designed for
fixed installations. As an active loudspeaker, it con-
tains drivers, power amplifiers, active crossover fil-
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 Diffraction Enclosure™)
loudspeaker enclosure is made of die-cast alumin-
ium and shaped to reduce edge diffraction. Com-
bined with the advanced Directivity Control Wave-
guide (DCW ), this design provides excellent fre-
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quency balance in difficult acoustic environments.

Positioning the loudspeaker

Each 4020C is supplied with an integrated ampli-
fier 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 off. 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.
2

Active Loudspeaker

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 amplifier or an integrated am-
plifier or receiver.
Once the connections have been made, the
loudspeakers are ready to be switched on.
ISS
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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
can be disabled by setting the "ISS" switch on the
back panel to "OFF." In this mode, the loudspeak-
er is powered on and off using the power switch
on the back panel.
4020C
Autostart
function
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