Bedienungsanleitung Quadral All (Seite 4 von 23) (Deutsch, Englisch, Französisch, Spanisch)

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ENGLISH

Rear centre speaker

In contrast to 5.1 surround sets, 6.1 systems have an additional rear centre speaker that

should be placed behind and slightly above the typical listening position.

Rear speakers

Whether you direct the rear speakers toward the listening position is a matter of taste.

Also, many listeners prefer the rear speakers to be positioned above ear height. This

can be achieved by mounting the units on a sturdy wall bracket, a high speaker stand,

a sideboard or shelf.

Stands and wall brackets

To obtain optimal positioning of the front and rear speakers, quadral offers suitable

stands and wall brackets. Some speaker models also have a keyhole-shaped cut-out in

the back of the speaker for wall mounting.

Should you have any questions, please contact us on tel.: +49 (0) 511 7904-0,

e-mail: ovs@quadral.com

Connecting to the amplifier

Before connecting the speakers to your hi-fi or surround system, make sure the amplifier/

receiver is switched off and its status LED is not lit. To connect the speakers, you will need

a two-core speaker cable for each speaker. Make sure these are of sufficient length and

don’t shorten the cables before checking they are long enough to hide behind furniture

or under the carpet. For cables longer than 5 metres, we recommend a cross-sectional

area of at least 2.5 sq mm per core in order to avoid unnecessary power loss. Strip the

insulation of the cores to a length of around 10 mm at both ends of the cable so that they

are bared for good contact.

Screw terminals

For connection, the speakers are provided with colour-coded screw terminals on the

back of the cabinet. Loosen the screw terminals and feed the stripped end of the core

into the hole that is now free. The two cores of speaker cables have different colouring

or shape for recognition. Connect one core to the red, positive terminal – the remaining

core to the black terminal. Tighten the screws hand-tight. To ensure correct polarity,

check that the core connected to the red, positive terminal of the speaker is also the core

that is connected to the red, positive terminal of the amplifier and that the other core is

connected to the black, negative terminals of both the speaker and amplifier.

With some quadral loudspeakers, you can choose between three modes of operation.

a) Conventional mode

Do not remove the jumpers,

connect the speaker cable

as shown in the illustration.

b) Biwiring mode

Open the jumpers after loosening the four

screw terminals on the back of the speaker

and connect the cable as shown in the

illustration.

c) Biamping mode

Open the jumpers and connect

the cables as shown in the illustration.

In the biwiring/biamping mode, the bass frequencies are controlled via the two lower

terminals – and the midrange/treble frequencies via the two upper terminals.

Make sure you use the correct polarities in these modes and that you remove the jumpers

on the speaker terminal to avoid damaging your amplifier.

Amplifier/

output

stage

Tweeter/midrange

Woofer

Jumper

Amplifier/

output

stage

Amplifier/

output

stage

Amplifier/

output

stage

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