Bedienungsanleitung Blaupunkt GTA 41200 HP (Seite 6 von 36) (Deutsch, Englisch, Französisch, Italienisch, Portugiesisch, Spanisch, Polnisch)

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GTA 41200 HP

Integrate fuse (2 x 25 A)

The fuse integrated in the ampli er protects the output stage

and the entire electrical system in case of a malfunction. If a

replacement fuse is used, never bridge fuses or replace them

with a type with higher current.

Connection examples

Connection of the voltage supply ..................................Fig. 2

Audio inputs ...........................................................................Fig. 3

Loudspeaker connections .................................................Fig. 4 - 7

Remote connection of the ampli er with switchable +12 V

voltage source.

This allows the ampli er to be switched on and o using the

on/o -switch of the car sound system.

Loudspeaker connections

(If the ampli er is to be jumpered, continue with the section

"Bridged loudspeaker connections" at this point).

As with every audio component, the correct polarisation of

ampli er and loudspeakers is of essentially importance for a

good bass response. For this reason, ensure that the positive

connection (+) of the ampli er is connected with the posi-

tive connection (+) of the loudspeaker; the same applies to

the negative connections (-). In addition, the left ampli er

channel must be connected with the left loudspeaker and

the right ampli er channel with the right loudspeaker.

Bridged loudspeaker connections

The GTA ampli er can also be bridged for a mono con gura-

tion. This allows the ampli er to be used for one or several

subwoofers or a mid-range driver. In this con guration, the

ampli er combines the right and left channel to a single-

channel output (mono output).

Note:

The ampli er can add the right and left signal information

only if the right as well as the left cinch (RCA) connection

were carried out.

Caution:

In a bridge circuit, the ampli er load must be 4 Ω or

higher. A lower load leads to an overheating or switch-

o of the ampli er and can cause permanent damages.

Subwoofer connection

The GTA 41200 HP features di erent options of connecting

a subwoofer:

–An active subwoofer or an additional ampli er are

connected with a cinch (RCA) cable to the two LINE OUT

sockets (see Fig.7).

–A passive subwoofer is connected to the bridged loud-

speaker output (see the section "Bridged loudspeaker

connections").

Sound settings

The following options are available to optimise the sound

of the connected loudspeakers:

– BASS switch

The BASS switch is used to adjust the bass response of

the ampli er. The following settings are possible: 0 dB /

+6 dB / +12 dB.

– X-OVER switch and LOW PASS control

For the GTA 41200 HP, the type of frequency crossover

("Low-Pass" or "High-Pass") and the desired cut-o fre-

quency can be adjusted for the connected loudspeakers.

Select the cut-o frequency up to which lower frequencies

(high-pass) or higher frequencies (low-pass) should be

blocked. Only frequencies above the cut-o frequency

(high-pass) or below the cut-o frequency (low-pass) are

passed on to the loudspeakers.

The cut-o frequency is dependent upon the frequency

range of the loudspeakers (see recommended frequency

range of the loudspeakers).

"High-Pass" (switch setting: HI PASS)

With a setting of 80 Hz, the ampli er has a frequency range

from 80 Hz to 30,000 Hz.

"Low-Pass" (switch setting: LOW PASS)

This control is active if the switch is in the LOW PASS posi-

tion, and allows for setting the desired entry frequency.

Example:

At a setting of 150 Hz, the ampli er has a frequency range

of 10 Hz to 150 Hz.

"Full Range" (switch setting: FLAT)

In this switch setting, the frequency control is deactivated

and the entire frequency spectrum is being ampli ed.

– LEVEL control

The LEVEL control is used to adjust the input sensitivity

of the power ampli er to the output voltage of your car

sound system preampli er output. The adjustment range

is from 0.2 V to 5 V. If a car sound system of a third party

manufacturer is connected, the input sensitivity must be

adjusted corresponding to the manufacturer data.

A few important explanations in this context:

By turning the LEVEL control clockwise, the input sen-

sitivity of the ampli er and, therefore, also the volume

increases. However, this is not a volume control. In the

end position, it is not possible to achieve a higher ampli-

 er output, even if it sounds like that at  rst. The system

merely increases the volume faster if the volume control

of the car sound system is turned up.

Power-on indicator (POWER / PROTECT)

Green LED:

Output stage on, regular operating status.

Red LED:

Output stage is electronically switched o due to an error.

GTA_41200_HP_13LG.indd 6GTA_41200_HP_13LG.indd 6 20.08.13 09:4920.08.13 09:49

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