Használati útmutató Genelec 8040BPM

Genelec hangszóró 8040BPM

Olvassa el alább 📖 a magyar nyelvű használati útmutatót Genelec 8040BPM (12 oldal) a hangszóró kategóriában. Ezt az útmutatót 14 ember találta hasznosnak és 2 felhasználó értékelte átlagosan 4.5 csillagra

Letöltés PDF
Oldal 1/12
8040B
8050B
Operating Manual 2-6
Käyttöohje 7-11
2
System
The GENELEC 8040B and 8050B are
two way active monitoring loudspeakers
designed to produce high SPL output, low
coloration and broad bandwidth in a small
enclosure size. They are suitable for a wide
variety of tasks, such as near field monitor-
ing, mobile vans, broadcast and TV control
rooms, surround sound systems and home
studios. Designed as active loudspeak-
ers, they contain drivers, power amplifiers,
active crossover filters and protection cir-
cuitry. The Minimum Diffraction Enclosure™
(MDE™) and advanced Directivity Control
Waveguide™ (DCW™) technologies provide
excellent frequency balance even in difficult
acoustic environments.
Drivers
The bass driver dimensions are 165 mm (6
1/2”) and 205 mm (8”) for 8040B and 8050B
respectively. The long, flow optimized reflex
tube has a large cross sectional area and
terminates with a wide flare at the back of
the enclosure. The high frequency driver is a
19 mm (3/4”) metal dome on the 8040B and
a 25 mm (1”) metal dome on the 8050B. Both
drivers are magnetically shielded.
Crossover
The active crossover network consists of two
parallel bandpass filters. The crossover fre-
quency is 3.0 kHz on the 8040B and 1.8 kHz
on the 8050B. The active crossover controls
(“treble tilt”, “desktop low frequency”, “bass tilt”
and “bass roll-off”) allow precise matching of
the loudspeakers to any room environment.
Amplifiers
The amplifier unit is mounted in the rear of the
loudspeaker enclosure. The unit incorporates
special circuitry for driver thermal overload
protection. Variable input sensitivity allows
accurate level matching to console output
section.
Connections
Each loudspeaker is supplied with a mains
cable and an operating manual. Before con-
necting up, ensure that the mains switch
is off (see figure 1). Audio input is via a
10 kOhm balanced XLR connector, but unbal-
anced leads may be used as long as pin 3 is
grounded to pin 1 of the XLR (see figure 3).
Once the connections have been made, the
loudspeakers are ready to be switched on.
Mounting considerations
Align the loudspeakers correctly
Always place the loudspeakers so that
their acoustic axes (see figure 2) are aimed
towards the listening position. Vertical place-
ment is preferable, as it minimises acoustical
cancellation problems around the crossover
frequency.
Maintain symmetry
Check that the loudspeakers are placed sym-
metrically and at an equal distance from the
listening position. If possible, place the system
so that the listening position is on the center-
line of the room and the loudspeakers are
placed at an equal distance from the center-
line.
Minimise reflections
Acoustic reflections from objects close to the
loudspeakers like desks, cabinets, computer
monitors etc. can cause unwanted colouration
and blurring of the sound image. These can be
minimised by placing the loudspeaker clear of
reflective surfaces. For instance, putting the
loudspeakers on stands behind and above the
mixing console usually gives a better result
than placing them on the meter bridge.
Genelec 8040B and 8050B Active Monitoring Systems
3
Minimum clearances
Sufficient cooling for the amplifier and func-
tioning of the reflex 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 lis-
tening room with a minimum clearance of
5 centimeters (2”) behind, above and on both
sides of the loudspeaker. The space adja-
cent to the amplifier 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 vibration insulating Isolation Positioner/
Decoupler™ (Iso-Pod™) table stand allows
tilting of the loudspeaker for correct align-
ment of the acoustic axis. The stand can be
attached to three mounting points allowing
vertical and symmetrical horizontal position-
ing (see figures 1 and 5).
Genelec 8040B and 8050B can be fitted
to Omnimount® Series 30 (8040B) and 60
(8050B) and König & Meyer loudspeaker
mounts on two sets of M6x10 mm threaded
holes on the back of the enclosure. On the
base of the enclosure is an M10x10 mm
threaded hole which can be used for secur-
ing the loudspeaker to its base. Do not use
this thread for mounting the loudspeaker on
a microphone stand which has a 3/8” UNC
thread.
Setting the input sensitivity
The input sensitivity of the loudspeakers
can be matched to the output of the mixing
console, or other source, by adjusting the
input sensitivity control on the rear panel
(see figure 1). A screwdriver is needed for the
adjustment. The manufacturer’s default set-
ting for this control is -6 dBu (fully clockwise)
which gives an SPL of 100 dB @1m with
-6 dBu input level.
ISSTM autostart function
When the power switch on the loudspeaker is
set to “ON”, the Intelligent Signal SensingTM
(ISSTM) autostart function of the loudspeaker
is active. Automatic powering down to standby
mode happens after a certain time when play-
back has ended. The power consumption in
standby mode is typically less than 0.5 watts.
The playback will automatically resume once
an input signal is detected from the source.
There is a slight delay in the automatic
powering up. If this is undesirable, the ISSTM
function can be disabled by setting the “ISS
DISABLE” switch on the back panel to “ON”
position. In this mode, the monitor is powered
on and off using the power switch on the back
panel.
Setting the tone controls
The frequency response of the system may
also have to be adjusted to match the acous-
tic environment. The adjustment is carried out
by setting the three tone control switch groups
“treble tilt”, “bass tilt” and “bass roll-off” on
the rear panel of the amplifier. There is also
a special “desktop low frequency” tone control
which gives an attenuation of 4 dB at 160 Hz
to compensate the effect of a mixing console,
desk or other reflective surface between the
listener and the loudspeaker. The factory set-
tings for these controls are all “OFF” to give a
flat anechoic response.
Bass roll-off control
Bass roll-off (first switch group from the left)
affects the low frequency roll-off of the loud-
speaker and attenuates its energy output near
the cut-off frequency. Attenuation levels of -2,
-4 or -6 dB can be selected.
Figure 1. Amplifier panel layout of the 8040B
Figure 2. Location of the acoustic axis
Figure 3. RCA to XLR cable
Cable
Screen
RCA
(Source)
XLR
(Speaker)
DESKTOP
CONTROL
20Hz 160Hz
BASS
ROLL-OFF
800Hz
+2
0
-4
-6
-2
dB
BASS
TILT
OFFON
4kH z 20 kH z
ALLOFF
TREBLE
TILT
dBu
-4
-6
0-2
8040B BI-AMPLIFIED
MONITORING SYSTEM
MAGNET ICALLY SHIELDED
MADE IN FINLAND
MAINS INPUT
50 / 6 0 Hz 110 W 2 30 V~
SERIAL NUMBER
292-8040T-6
www.genel ec.com
+ GND-
1
3
2
292-8040W
WARN IN G
ELECTRIC SHOCK H AZ ARD. DONOT OPEN ONOT SUBJ EC. D T T O WATER OR
PERSONNEL. USE EAR THED M AINS CONNECTI ONONL NOTEY. ! THI S MONI RTO
MOISTURE. NO U SER SERV ICEA BLEPA RTS INSIDE. REFER SERV ICING TOQU ALIFIE D
SHOULD NOT BE MOU NTED ON ICROPH ONA M E STAND AS THE BASE TH READ I S M1 0.
ÊTRE RACCORDÉ À LA TERRE .NOTE E MONITEU R NE DOI! C T PAS ÊTRE MONTÉ
AVERTISS EM EN T
SUR UN P IED DE MI CROPH ONE CAR LE PA S DE V I SEST DE TYPE M10 .
ADRESSER TOUTE RÉP ARATION À UN P . CERSONNELQUALIFIÉ ETAP REIL DOITPA
RISQUE DE CH OC ÉLECTRIQUE .NE SOUVRI R.NE SEXPOSE 'EAU OUPA PA R À L
L'HUMI DITÉ . AU CU NCOMPOSAN L'INTÉRI EU EMPLAÇABLET À R R PAR L'UTILISATEU R.
LAITE ON LIITETTÄ VÄ SUOJA MAADOITUSKOSKETTIMI LLA RU STETTUUNVA
PISTORASIAA N.APPA RATET MÅ TI LKOPLES JORDET STIKKONTAKT.
APP AR E N SKALLANSLU STILL JORDAAT TA T UTTAG.
BASS
ROLL-OFF
DESKTOP
CONTROL
TREBLE TILTBASS TILT
+4
+2
+6
IN PUT SENSITIV ITY
REQUIRED F OR
100dB SPL@1m
ISS
DISABLE
REFLEX PORT
TONE CONTROLS
Iso-Pod™ TABLE
STAND
THREADS FOR
CEILING AND
WALL MOUNTS
CONNECTOR PANEL
(HORIZONTAL)
ACOUSTIC
AXIS
> 0,7 m
h
8040B: h=240 mm
8050B: h=290 mm

Termékspecifikációk

Márka: Genelec
Kategória: hangszóró
Modell: 8040BPM

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