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8040B

8050B

Operating Manual 2-6

Käyttöohje 7-11

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

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

-4

-6

-2

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-

292-8040W

WARN IN G

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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.

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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

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

8040B: h=240 mm

8050B: h=290 mm

Produktspecifikationer

Varumärke:	Genelec
Kategori:	högtalare
Modell:	8040BPM
Enhetsplacering:	Vrijstaand
Typ av operation:	Draaiknop
Färg på produkten:	Wit
Dörrgångjärn:	Rechts
Inbyggd display:	Nee
Bredd:	600 mm
Djup:	595 mm
Höjd:	1880 mm
Nettoskatt:	- W
Ljudnivå:	38 dB
Årlig-energiförbrukning:	- kWu
Energieffektivitetsklass (gammal):	A+
Frys bruttokapacitet:	- l
Frys nettokapacitet:	78 l
Fryskapacitet:	4 kg/24u
Dörröppningsriktning utbytbar:	Ja
Kylskåpets nettokapacitet:	200 l
Kylskåp med bruttokapacitet:	- l
Kylskåp invändig belysning:	Ja
Antal hyllor i kylskåp:	4
Antal-grönsakslådor:	1
Frysläge:	Onder
Retentionstid vid strömavbrott:	- uur
Antal fryshyllor:	3
Total nettokapacitet:	278 l
Äggställ:	Ja
Flaskställ:	Ja
Total bruttokapacitet:	- l
Hyllmaterial:	Gehard glas
Kylskåpsdörrfickor:	4
Till fackområdet:	Nee
Kraftkälla:	Electrisch
Energianvändning per dag:	0.73 kWh/24u
Klimaatklasse:	N-ST