Käyttöohje Genelec F One Alibassokaiutin

Käyttöohje

Figure 2. Connectors and controls of the F One.

Connecting a surround

system

The F One has an integrated crossover net-

work for the five main channels which directs

the frequencies below 85 Hz to the subwoofer

and higher frequencies through the output

connectors to the main loudspeakers. When

using a surround sound processor, select a

loudspeaker setting “Large” for the channels

routed through the subwoofer.

Connect the five main channel signal RCA

cables from the signal source to the RCA

input connectors L, R, C, LS and RS.

The LFE channel of the preamplifier or

processor can be connected to the LFE IN

connector. The LFE channel on the F One

can reproduce signals up to 120 Hz.

Next connect the main loudspeakers to the

corresponding L, R, C, LS and RS signal out-

puts on the subwoofer with RCA cables.

Once all connections have been made,

the subwoofer and main loudspeakers are

ready to be powered up.

Positioning in the room

The placement of the subwoofer in the room

affects the overall frequency response and

sound level of the system dramatically, as at

low frequencies the effects of the room are

strong. Even a slight change in the location

of the subwoofer can cause a marked dif-

ference in the frequency balance so often

patient and methodical experimentation and

testing is needed to find the optimum place-

ment.

The placement will also affect the bass

roll-off rate and the phase difference

between the main loudspeakers and the

subwoofer. These effects can be compen-

sated using the controls in the subwoofer

but we recommend that at first you leave

the switches untouched and concentrate

on finding the position where the subwoofer

gives the smoothest response, and only

then use the controls to fine-tune the bal-

ance and phase alignment between the

subwoofer and the main loudspeakers.

Start by placing the subwoofer close to the

center of the front wall. We recommend a

distance of less than 60 cm / 24” to the wall.

This position gives increased acoustic load-

ing and SPL due to the proximity of the front

wall and floor. Ideally the subwoofer and

main loudspeakers should be positioned

symmetrically and at an equal distance

from the listening position.

If the frequency balance is not quite right,

try moving the subwoofer to the left or right

along the wall so that different room modes

are excited at different levels. Positioning

the subwoofer close to a corner will boost

the bass level at lower frequencies and may

cause asymmetrical spatial imaging.

Setting the Bass

Roll-Off switches

The acoustic response of the subwoofer

may have to be matched to the characteris-

tics of the room and the positioning in which

it will be used (see Table 1). To adjust the

subwoofer to match these characteristics

use the ‘’BASS ROLL-OFF’ control switches

located on the connector panel. When all

Roll-Off switches are ‘OFF’, a flat anechoic

response is obtained.

Setting the phase control

The effect of incorrect phase alignment

between the main loudspeakers and the

subwoofer is a drop in the frequency

response of the whole system at the main

loudspeaker / subwoofer crossover fre-

quency. The phase difference between the

main loudspeakers and subwoofer at the

listening position is dependent upon the dis-

tance from the listener to the subwoofer in

relation to the main loudspeakers. To avoid

phase differences between the left and right

main loudspeakers and the subwoofer, the

subwoofer should be placed close to the

center of the front loudspeaker array.

Two phase matching switches in the

crossover allow compensation for incorrect

phase alignment. Four settings are provided

between 0° and -270°.

MAX

MIN

SUBWOOFER

LEVEL

MAINS INPUT

50/60Hz

70 W 230 V~

IN

OUT

LFE

L

L

FRONT

REAR

L

-2 dB

ROLLOFF

PHASE

POWER

FRONT

L

REAR

ON

OFF

CENTER

R

R

R

R

0/-180°

STEREO

IN

0/-90°

-4 dB

292-F10J-6

CENTER

F One Active Subwoofer

MAGNETICALLY SHIELDED

www.genelec.com MADE IN FINLAND

TO WATEROR MOISTURE.NOUSER SERVICEABLE PARTS

ELECTRIC SHOCK HAZARD. DO NOT OPEN. DO NOT SUBJECT

L'INTÉRIEUR REMPLAÇABLEPAR L'UTILISATEUR. ADRESSER

RISQUE DE CHOC ÉLECTRIQUE.NEPASOUVRIR. NE PA S

EXPOSERÀL'EAU OU L'HUMIDITÉ. AUCUN COMPOSANTÀ

AVERTISSEMENT

WARNING

INSIDE.REFER SERVICING TO QUALIFIED PERSONNEL.

TOUTERÉPARATIONÀUNPERSONNEL QUALIFIÉ.

292-F10T

ON

SERIAL NUMBER

MAINS POWER

SWITCH

MAINS

CONNECTOR

SIGNAL INPUT

CONNECTORS

SIGNAL OUTPUT

CONNECTORS

SUBWOOFER LEVEL

ADJUSTMENT

BASS ROLL-OFF AND

PHASE CONTROLS

Arviointi

Lisää tästä ohjekirjasta

Ymmärrämme, että on mukavaa, että sinulla on paperikäyttöinen käyttöopas laitteellesi Genelec F One Alibassokaiutin. Voit aina ladata oppaan verkkosivuiltamme ja tulostaa sen itse. Jos haluat alkuperäisen käyttöoppaan, suosittelemme ottamaan yhteyttä osoitteeseen Genelec. He saattavat pystyä toimittamaan alkuperäisen ohjekirjan. Etsitkö laitteen Genelec F One Alibassokaiutin käyttöopasta toisella kielellä? Valitse haluamasi kieli kotisivuiltamme ja etsi mallinumero nähdäksesi, onko sitä saatavilla.

Tekniset tiedot

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