Manual Audison vr 404 xr (page 16 of 22) (English, German, French, Italian)

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VR 404

CONNECTIONS AND FUNCTIONS

Front Side

OUTPUT

CLAMPS Ch A

A SPEAKERS

Left and right

power outputs

of the A chan-

nels.

The available

signal is

subjected to the

action of the

AMBIENT

EQUALIZER,

which can be

adjusted

through special

controls put on

the upper part

of the ampli-

fier.

MONO

Power outputs

(+L and -R).

They must be

used to connect

a mono loud-

speaker when

the function

MONO IN R is

activated

through the

special switch

put on the up-

per part of the

amplifier

GENERAL INPUT

IN A

IN A + B

Left and right

inputs of the am-

plifier.

It drives directly

the two A channels

of the amplifier and

it can also drive the

two B channels

when the MODE

button (on the up-

per part) is selected

as IN A + B.

Connections have

to be made from the

preamplified

output of a source,

for example a ra-

dio cassette player,

a CD player, an

electronic crosso-

ver or any devices

which handle the

musical signal at a

preamplified stage.

BY - PASS

OUTPUTS

OUT BY-

PASS

Preamplified

BY-PASS out-

puts of the am-

plifier.

The available

signal is

subjected to

the action of

the AMBIENT

EQUALIZER

filter (which

can be activa-

ted or not)

which handles

the signal

coming from

the IN general

input.

They are for

another ampli-

fier, an

electronic

crossover or

any devices

which handle

the musical

signal at a pre-

amplified

stage.

B INPUTS

IN B

Left and right

inputs of the

amplifier.

They can be

activated

through the

MODE

switch (on

the upper part

of the ampli-

fier) on the

IN A -IN B

position.

B SPEAKERS

Left and right outputs of

the B channels.

The available signal is

subjected to the action of

the AMBIENT EQUALI-

ZER (which can be adju-

sted through the special

controls put on the upper

part of the amplifier)

when A and B channels

are handled by the IN

general input in MODE

IN A + B configuration.

If the B channels are

driven only by the B

input, these power out-

puts are deprived of the

action of the AMBIENT

EQUALIZER filter.

OUTPUT CLAMPS Ch B

MONO

Power outputs (

L- end

R+

They have to be used to

connect a mono loudspe-

aker when the MONO IN

R function (enabled

input: right) or the

MIXED MONO L+R one

(sum of the channels) is

activated through the

special switches put on

the upper part of the

device.

RÉGLAGES SUPÉRIEURS

SECTION LO - PASS (B-D-F-H-I)

Canal Gauche(Left) et Droit (Right) de la

section LO-PASS.

B• LEVELS: Réglage de niveau Left - Right des canaux LO-PASS. La sensibilité est entre

0,15 et 1,5 Volts.

D• CROSSOVER FREQUENCY: Réglage linéaire de la fréquence de coupure du filtre LO

- PASS. La gamme de fréquences est divisée en deux échelles de valeurs qui peuvent

être selectionnés par le sélecteur (F).

F• FREQUENCIES RANGE: Sélecteur qui divise le réglage de la fréquence de coupure en

deux gammes: 1° (40 Hz - 200 Hz), 2° (160 Hz - 800 Hz).

H• Q control: Réglage du coefficient de surtension du filtre de 0,7 à 3. A sa valeur minimale,

le filtre LO-PASS se comporte comme Butterworth. A sa valeur maximale (12 dB), le

filtre présente une amplification correspondant à une fréquence de coupure sélectionnée

pour favoriser le pilotage de Woofers ou de Subwoofer peu performants.

I• MIXED MONO-BRIDGE: En ON, il mélange les entrées Left et Right (IN ou IN LO)

des canaux LO-PASS en mono. La sorte de connexion des sorties de puissance permet

de choisir la configuration mono deux canaux ou mono en BRIDGE, nécessaire

quand il y a seulement un Subwoofer.

SECTION HI - PASS (A-C-E)

Canal Gauche (Left) et Droit (Right) de la section

HI-PASS.

A• LEVELS: Réglage de niveau Left - Right des canaux HI-PASS. La sensibilité est entre

0,15 et 1,5 Volts.

C• CROSSOVER FREQUENCY: Réglage linéaire de la fréquence de coupure du filtre HI

- PASS La gamme de fréquences est divisée en deux échelles de valeurs qui peuvent

être selectionnés par le sélecteur (E).

E• Sélecteur qui divise le réglage de la fréquence de coupure en deux gammes: 1° (40 Hz

- 200 Hz), 2° (160 Hz - 800 Hz).

MODE ( J )

J• Sélecteur pour l'utilisation de deux ou de quatre entrées:

Position IN LO (quatre entrées) elle permet de piloter les canauxHI-PASS avec l'entrée

préamplifiée IN et de piloter les canaux LO-PASS avec l'entrée préamplifiée IN LO.

Posizione OUT - HI (deux entrées, deux sorties) elle permet de piloter les canaux LO-

PASS et les canaux HI-PASS avec l'entrée préamplifiée IN. Elle met en fonction la

sortie amplifiée OUT - HI.

AMBIENT EQUALIZER (L-K)

L• Sélecteur pour mettre en fonction (ON) ou neutraliser (OFF) le filtre AMBIENT

EQUALIZER. L'AMBIENT EQUALIZER est sur l'entrée générale (IN); il agit sur

toutes les sorties de puissance et préamplifiées quand le sélecteur MODE est positionné

en OUT - HI. Si le sélecteur MODE est positionné en IN LO, l'AMBIENT EQUALI

ZER n'agit pas sur la sortie de puissance LO-PASS.

K• Contrôle de niveau qui régle l'action du filtre lui-même.

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Audison vr 404 xr Manual

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