Genelec 6020A Manuel utilisateur

Genelec 6020A

Active Home Theater System

Operating Manual

6020A

General description

The bi-ampliﬁed GENELEC 6020A is an extreme-

ly compact two way active loudspeaker designed

for home theaters and multimedia applications.

As an active loudspeaker, it contains drivers,

power ampliﬁers, active crossover ﬁlters and pro-

tection circuitry. The MDE™ (Minimum Diffraction

Enclosure™) loudspeaker enclosure is made of

die-cast aluminium and shaped to reduce edge

diffraction. Combined with the advanced Direc-

tivity Control WaveguideTM (DCWTM), this design

provides excellent frequency balance in difﬁcult

acoustic environments. If necessary, the bass re-

sponse of the 6020A’s can be extended with a

Genelec 5050A subwoofer.

Positioning the loudspeaker

Each 6020A is supplied with an integrated am-

pliﬁer unit, mains cable and an operating man-

ual. After unpacking, place the loudspeaker in

its required listening position, taking note of the

line of the acoustic axis. The axes of all loud-

speakers should converge at ear height at the

listening position (see Figures 1 and 2).

Connections

Before connecting up, ensure that the volume

control potentiometer on the front panel is turned

fully counter-clockwise to the stand-by setting.

Connect the loudspeaker to an earthed mains

connection with the supplied mains cable. Never

connect the loudspeaker to an unearthed mains

supply or using an unearthed mains cable.

The 6020A has two parallel 10 kOhm au-

dio input connectors: a balanced XLR and an

unbalanced RCA. For longer cable connection

lengths (>10 m or >30 ft) a balanced line con-

nection is recommended as it offers better im-

munity to external interference. However, the

RCA connection method is more commonly

available and usually works as well for shorter

connection lengths in less electrically noisy

environments. Do not use both inputs at the

same time. Consult your Genelec dealer for the

choice of signal cables. Once the connections

have been made, the loudspeakers are ready

to be switched on.

Volume control, Autostart and

stand-by switching

The input sensitivity of the loudspeakers can be

matched to the output of the preamp/proces-

sor by adjusting the volume control on the front

panel. When the volume control knob is turned

fully counter-clockwise, the 6020A goes into

stand-by mode. The loudspeaker can be left in

stand-by mode whenever it is not used, how-

ever, it is only completely disconnected from the

mains power when the mains cable is discon-

nected.

The 6020A is also equipped with a signal-

sensing Autostart function for automatic switch-

ing between “on” and “stand-by” modes. Auto-

start is activated by turning switch 1 (AUTO-

START) on the back panel to “ON”. Autostart

turns the ampliﬁer to stand-by mode if there is

no signal present for about 30 minutes. When

the signal returns the ampliﬁer switches on im-

mediately and the loudspeaker functions nor-

mally.

Setting the tone controls

The frequency response of the Genelec 6020A

can be adjusted to match the acoustic environ-

ment by setting the tone control switches on

the rear panel. The controls are “Treble Tilt” and

Figure 1: Location of the acoustic

axis

Figure 3: Control and connector layout on the rear

panel of the 6020A.

30°

100 120° °

Figure 2: Correct alignment of the

loudspeakers

“Bass Tilt”. An acoustic measuring system such

as WinMLS or comparable is recommended for

analyzing the effects of the adjustments, howev-

er, careful listening with suitable test recordings

can also lead to good results if a test system

is not available. Table 1 above shows some ex-

amples of typical settings in various situations.

Figure 4 shows the effect of the controls on the

anechoic response.

Treble Tilt

Treble Tilt control (switch 2) attenuates the

treble response of the loudspeaker at frequen-

cies above 5 kHz by 2 dB, which can be used

for smoothening down an excessively bright

sounding system.

Bass Tilt

Bass Tilt control offers three attenuation levels

for the bass response of the loudspeaker below

2 kHz, usually necessary when the loudspeak-

ers are placed near a wall or other room bound-

aries. The attenuation levels are -2 dB (switch

3 “ON”), -4 dB (switch 4 “ON”) and -6 dB (both

switches “ON”).

The factory setting for all tone controls is “OFF”

to give a ﬂat anechoic response. Always start

adjustment by setting all switches to “OFF” po-

sition. Measure or listen systematically through

the different combinations of settings to ﬁnd the

best frequency balance.

Mounting considerations

Align the loudspeakers correctly

Always place the loudspeakers so that their

acoustic axes (see ﬁgure 1) are aimed towards

the listening position. Only vertical placement is

preferred, as it minimises acoustical cancella-

tion 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 centerline.

Minimise reﬂections

Acoustic reﬂections from objects close to the

loudspeakers like desks, cabinets, computer

monitors etc. can cause unwanted colouration

blurring of the sound image. These can be mini-

mised by placing the loudspeaker clear of re-

ﬂective surfaces.

Table 1: Suggested tone control settings for differing acoustical environments

Loudpeaker Mounting Position Treble Tilt Bass Tilt

Flat anechoic response OFF OFF

Free standing in a damped room OFF OFF

Free standing in a reverberant room OFF -2 dB

Near to a wall OFF -6 dB

In a corner or a cabinet OFF -6 dB

Minimum clearances

Sufﬁcient cooling for the ampliﬁer and function-

ing 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 loudspeak-

er must always be open to the listening room

with a minimum clearance of 5 centimeters (2”)

behind, above and on both sides of the loud-

speaker. The space adjacent 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 6020A offers several mounting options:

The Iso-Pod™ (Isolation Positioner/Decou-

pler™) vibration insulating table stand allows

tilting the loudspeaker for correct alignment

of the acoustic axis. On the base of the loud-

speaker is a 3/8” UNC threaded hole compat-

ible with a standard microphone stand. On the

rear there are two M6x10 mm threaded holes

for Omnimount® size 20.5 brackets or the key-

hole wall mount adapter provided with the loud-

speaker.

Maintenance

No user serviceable parts are to be found within

the ampliﬁer unit. Any maintenance or repair of

the 6020A unit should only be undertaken by

qualiﬁed service personnel.

Safety considerations

Although the 6020A has been designed in ac-

cordance with international safety standards,

the following warnings and cautions should

be observed to ensure safe operation and to

maintain the loudspeaker under safe operating

conditions:

• Servicing and adjustment must only be

performed by qualiﬁed service personnel.

The loudspeaker must not be opened.

• Do not use this product with an unearthed

mains cable or an unearthed mains

connection as this may compromise

electrical safety.

• Do not expose the loudspeaker to water or

moisture. Do not place any objects ﬁlled with

liquid, such as vases on the loudspeaker or

near it.

• This loudspeaker is capable of producing

sound pressure levels in excess of 85 dB,

which may cause permanent hearing

damage.

• Free ﬂow of air behind the loudspeaker is

necessary to maintain sufﬁcient cooling.

Do not obstruct airﬂow around the

loudspeaker.

• Note that the ampliﬁer is not completely

disconnected from the AC mains service

unless the mains power cord is removed

from the ampliﬁer or the mains outlet.

Guarantee

This product is guaranteed for a period of one

year against faults in materials or workmanship.

Refer to supplier for full sales and guarantee

terms.

Figure 4. The curves above show the effect of the “Bass Tilt” and

“Treble Tilt” controls on the free field response of the 6020A.

Figure 5. The upper curve group shows the horizontal directivity

characteristics of the 6020A measured at 1 m. The lower curve

shows the system's power response.

Bass amplifier output power with an 8 Ohm load: 20 W

Treble amplifier output power with an 8 Ohm load: 20 W

Long term output power is limited by driver unit

protection circuitry.

Amplifier system distortion at nominal output:

THD < 0.08 %

SMPTE-IM < 0.08 %

CCIF-IM < 0.08 %

DIM 100 < 0.08 %

Signal to Noise ratio, referred to full output:

Bass > 95 dB

Treble > 95 dB

Mains voltage:

100, 120, 220 or 230 V

according to region

Voltage operating range: ±10 %

Power consumption: Idle 5 VA

Full output 50 VA

Lower cut-off frequency, –3 dB: < 65 Hz

Upper cut-off frequency, –3 dB: > 21 kHz

Free field frequency response of system:

66 Hz – 20 kHz (± 2.5 dB)

Maximum short term sine wave acoustic output on axis

in half space, averaged from 100 Hz to 3 kHz:

@ 1 m > 96 dB SPL

@ 0.5 m > 102 dB SPL

Maximum long term RMS acoustic output in same

conditions with IEC weighted noise (limited by driver

unit protection circuit): @ 1 m > 95 dB SPL

Maximum peak acoustic output per pair on top of

console, @ 1 m from the engineer with music material:

> 105 dB

Self generated noise level in free field @ 1m on axis:

< 10 dB (A-weighted)

Harmonic distortion at 85 dB SPL @ 1m on axis:

Freq: 50…100 Hz < 3 %

> 100 Hz < 0.5 %

Drivers: Bass 105 mm (4") cone

Treble 19 mm (3/4") metal dome

Both drivers are

magnetically shielded

Weight: 3.7 kg (8.1 lb)

Dimensions: Height 242 mm (91/2”)

(including Iso-Pod™ table stand)

Height 230 mm (91/16”)

(without Iso-Pod™ table stand)

Width 151 mm (6")

Depth 142 mm (55/8”)

Connectors:

XLR female, balanced 10 kOhm,

pin 1 gnd, pin 2 +, pin 3 -

RCA female, unbalanced 10 kOhm,

pin +, sleeve -

Input level for 100 dB SPL output at 1 m:

-6 dBu at volume control max

Volume control range:

-80 dB relative to max output

Output signal level is 0 dB relative to input signal level

but adjustable by volume control

Crossover frequency, Bass/Treble: 3.0 kHz

Treble Tilt control operating range:

0 to –2 dB @ 15 kHz

Bass Tilt control operating range in –2 dB steps:

0 to –6 dB @ 100 Hz

The ‘CAL’ position is with all tone controls set to ‘off’ and

the input sensitivity control to maximum (fully

clockwise).

AMPLIFIER SECTION

CROSSOVER SECTIONSYSTEM SPECIFICATIONS

EC Declaration of Conformity

This is to certify that the Genelec Home Theater System

6020A conforms to the following standards:

Safety:

EN 60065: 2002 / IEC 60065:2001 7th Edition

EMC:

EN 55020 : 2002 + A1 : 2003

EN 55013: (2001)

EN 61000-3-2 (2000)

EN 61000-3-3 (1995)

The product herewith complies with the requirements of

The Low Voltage Directive73/23/EEC, EMC Directive

89/336/EEC and 93/68/EEC

Signed:

Ilpo Martikainen

Position: Managing Director

Date: 4-October-2005

6020A Operating Manual

Genelec Document D0063R001 Copyright Genelec Oy 10.2005. All data subject to change without prior notice www.genelec.com

International enquiries:

Genelec, Olvitie 5

FIN-74100, Iisalmi, Finland

Phone +358 17 83881

Fax +358 17 812 267

Email [email protected]

In the U.S. please contact:

Genelec, Inc., 7 Tech Circle

Natick, MA 01760, USA

Phone +1 508 652 0900

Fax +1 508 652 0909

Email [email protected]

In Sweden please contact

Genelec Sverige

Ellipsvägen 10B

P.O. Box 5521, S-141 05 Huddinge

Phone +46 8 449 5220

Fax +46 8 708 7071

Email [email protected]

In China please contact:

Beijing Genelec Audio Co. Ltd.

Jianwai SOHO, Tower 12, Room 2306

39 East 3rd Ring Road, Chaoyang District

Beijing 100022, China

Phone +86 0 5869 7915, Fax +86 10 5869 7914

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