Bedienungsanleitung Blaupunkt GTA 2 SPECIAL (Seite 9 von 38) (Holländisch)

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GTA 2 SPEZIAL

+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 sensi-

tivity of the final stage to be matched to the

output voltage of your car radio preamp out-

put.

The range of adjustment extends from 0.1 V

to 8 V.

Adjust the input sensitivity in accordance with

the manufacturer’s specifications when con-

necting the amplifier to other radios.

Important:

Turning the Level control clockwise increas-

es the input 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 connections”.)

As with any audio component, connection

of the amplifier and speakers with the cor-

rect polarity is essential for good bass re-

production. Ensure therefore when connect-

ing that the positive (+) amplifier terminal is

connected to the positive (+) loudspeaker

terminal. The same applies to the negative

(-) terminals. The left-hand amplifier chan-

nel must also be connected to the left-hand

loudspeaker and the right-hand amplifier

channel to the right-hand loudspeaker.

Bridged loudspeaker connections

The GTA can also be bridged in a mono con-

figuration. This enables you to use the am-

plifier for one or more subwoofer(s) or a mid-

range speaker. In this configuration the am-

plifier 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 ampli-

fier 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 GTA 2 Spezial. If, for

example, you wish to drive a pair of sub-

woofers, connect in accordance with the low-

pass diagram (fig. 3). The crossover frequen-

cy is dependent upon the loud-speaker fre-

quency range (consult the loudspeaker man-

ufacturer’s data for the recommended fre-

quency range).

“High-Pass”

At a frequency of 80 Hz , the loudspeaker

has a frequency range of 80 Hz to 26.000 Hz.

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