Manual Blaupunkt tha 280 (page 4 of 14) (English, German, Dutch, French, Italian, Portuguese, Swedish, Spanish)

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THA 280

Distortion factor (RMS) < 0,03%

Stability 2 Ω

Input-sensitivity 0,3 - 8 V

Low-pass filter 50 - 250 Hz

High-pass filter 50 - 250 Hz

Bass Boost 0 ... +12 dB

Dimensions

W x H x D (mm) 352 x 43 x 251

Positive/negative connection

We recommend a cable cross-section of not less than

6 mm

. Run a standard commercial positive cable to

the battery and connect to the fuse holder. Use cable

grommets when passing cables through holes with

sharp edges. Bolt a standard commercial negative

cable to a ground point free of induced noise (car

body bolt, body panel) - not to the negative battery

pole. Clean the contact surface of the ground point

down to bare metal and coat with antiseize graphite

petroleum.

Integral fuses

The integral fuses within the amplifier protect the fi-

nal stage and the entire electrical system in the event

of a fault. Never bridge fuses or replace fuses with a

higher current rating.

Example connections

Power supply connection ............................. Fig. 2.

Connection of car radio with cinch output .... Fig. 3.

Loudspeaker connections ..................... Fig. 4/4a/5

Connecting the wire remote control

(LPL REMOTE) ............................................ Fig. 6

+12V

Connect remote amplifier connection to switchable

+12 V power source.

This enables the amplifier to be switched on and off

with the radio’s On/Off switch.

Level control

The Level control enables the input sensitivity of the

final stage to be matched to the output voltage of

your car radio preamp output.

The range of adjustment extends from 0.1 V to 8 V.

Adjust the input sensitivity in accordance with the

manufacturer’s specifications when connecting the

amplifier to other radios.

Important:

Turning the Level control clockwise increases the in-

put sensitivity of the amplifier, and thereby also the

volume. The Level control is however not a volume

control; an increase in volume is not achieved in the

maximum position, even if this subjectively appears

to be the case. The system merely increases the

volume more quickly when the volume is turned up

on the radio.

Loudspeaker connections

(If the amplifier is to be connected in a bridged mode,

proceed with the section “Bridged loudspeaker con-

nections”.)

As with any audio component, connection of the

amplifier and speakers with the correct polarity is

essential for good bass reproduction. Ensure there-

fore when connecting that the positive (+) amplifier

terminal is connected to the positive (+) loudspeaker

terminal. The same applies to the negative (-) termi-

nals. The left-hand amplifier channel must also be

connected to the left-hand loudspeaker and the right-

hand amplifier channel to the right-hand loudspeaker.

Bridged loudspeaker connections

The THA can also be bridged in a mono configura-

tion. This enables you to use the amplifier for one or

more subwoofer(s) or a mid-range speaker. In this

configuration the amplifier sums the right-hand and

left-hand channels, delivering a single channel (mono)

output.

Note:

The amplifier can sum the right- and left-hand signal

information only if both the right- and left-hand RCA

connections have been made.

CAUTION:

The amplifier must be presented with a load

of 4 Ohms or higher in bridged mode. A lower

load will cause the amplifier to overheat or switch

off. This can lead to permanent damage of the

unit.

Adjustment of the type and range of the

cross-over frequencies

The type of crossover (i.e. “low-pass” or “hi-pass”)

and the desired crossover frequency can be selected

on the THA 280. If, for example, you wish to drive a

pair of subwoofers, connect in accordance with the

low-pass diagram (Fig. 3). The crossover frequency

is dependent upon the loud-speaker frequency range

(consult the loudspeaker manufacturer’s data for the

recommended frequency range).

“High- Pass”

At a of 250 Hz , the loudspeaker has a frequency

range of 250 Hz to 30.000 Hz.

“Low-pass” frequency control

This control is active when the switch is set to “Low-

pass” and permits selection of the desired crossover

frequency. Example: at a setting of 150 Hz, the loud-

speaker has a frequency range of 10 Hz to 150 Hz.

Bass boost

You can adjust the bass output of the amplifier using

the bass boost control. The settings range covers 0

dB to +12 dB.

LPL REMOTE

Connection for the supplied wire remote control

(5 m). This gives you the convenience of controlling

the bass level remotely (see Fig. 6).

If you want to use the remote control, the device

must be operated with the low-pass filter

activated (crossover switch set to position LP).

OFF/ON switch > ON

Operating indicator

(POWER / PROTECTION)

Green lamp: Power amp on, regular operating

condition

Red lamp: Power amp has been switched off

electronically, due to a fault or failure.

This information is subject to change without no-

tice!

FRANÇAIS

Introduction

Félicitations! Vous avez acheté un amplificateur THA

haut de gamme. En optant pour un THA 280 vous

avez choisi une reproduction du son de très haute

qualité. Que vous intégriez l‘amplificateur THA dans

un système déjà existant ou dans un nouveau sys-

tème hi-fi, l‘amélioration de la qualité du son, que

vous aurez bien du mal à ne pas remarquer, vous

convaincra dès le premier instant d‘écoute!

Blaupunkt s’efforce en permanence de rendre les

instructions de service de ses appareils toujours plus

claires et de lecture facile. Si malgré cela, vous émet-

tiez des doutes sur un point quelconque du manuel,

n’hésitez pas à vous adresser à votre représentant

agréé Blaupunkt ou à composer le numéro du centre

d’assistance téléphonique de votre pays (hot line).

Vous trouverez celui-ci à la dernière page de ce fas-

cicule.

Notre garantie s’étend à tous les produits achetés à

l’intérieur de l’Union Européenne. Vous en trouverez

les conditions sur notre site Internet :

www.blaupunkt.de. Vous pourrez aussi les obtenir

en vous adressant à :

Blaupunkt GmbH

Hotline

Robert Bosch Str. 200

D-31139 Hildesheim

Recommandation :

La performance d‘un amplificateur est toujours fonc-

tion de son installation, une installation correcte amé-

liorant la performance d‘ensemble du système audio.

L‘amplificateur THA devrait être installé par un ex-

pert; au cas où ce serait vous à vouloir l‘installer, li-

sez d‘abord ce mode d‘emploi sans rien omettre, puis

effectuez l‘installation en prenant le temps

nécessaire.Pour conclure, permettez-nous de vous

donner encore quelques conseils, notamment en

matière de protection de la santé :écouter de la mu-

sique dans un véhicule à un niveau dépassant 100

décibels, peut endommager l‘ouïe humaine de fa-

çon irrémédiable, voire occasionner sa perte totale.

Avec les systèmes modernes, très puissants, et des

haut-parleurs haut de gamme, il est possible de dé-

passer le niveau de pression sonore de 130 déci-

bels.

Consignes de sécurité

Dispositions relatives à l‘installation et

au branchement

Le câble électrique de l‘amplificateur doit être équipé

d‘un fusible placé à une distance maximale de 30

cm par rapport à la batterie du véhicule, pour proté-

ger celle-ci en cas de court-circuit entre l‘amplifica-

teur et la batterie. Le fusible de l‘amplificateur ne pro-

tège que ce dernier, non la batterie du véhicule. Pen-

dant le montage et le branchement de l‘amplifi-

cateur, le pôle négatif de la batterie doit être dé-

connecté.

Effectuer l‘installation en observant les consignes de

sécurité du fabricant du véhicule (air bag, équipe-

ment d‘alarme, ordinateur de bord, dispositif

d‘antidémarrage).

Pour prévenir les accidents, il est nécessaire que

l‘étage amplificateur de puissance soit fixé de façon

professionnelle. Il doit être possible d‘introduire les

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Blaupunkt tha 280 Manual

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