Manual Blaupunkt GTA 4 Special Edition 2011 (page 46 of 52) (English, German, Dutch, Danish, French, Italian, Polish, Portuguese, Swedish, Turkish, Spanish, Norwegian, Finnish)

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GTA 4 Special Edition 2011

When selecting the installation location, select a dry loca-

tion that offers sufficient air circulation for cooling the

ampli er.

The GTA 4 Special must not be installed on rear shelves, rear

seats or other locations that are open to the front.

The installation location must be suitable to accept the ac-

companying screws and provide a  rm support.

The ampli er power cable must be  tted with a fuse no more

than 30 cm from the battery to protect the vehicle battery in

case of a short circuit between power ampli er and battery.

The fuse of the ampli er protects only the ampli er, not the

vehicle battery.

Use loudspeakers with 2 - 4  impedance (see table or in-

stallation drawing). Observe the maximum power handling

capacity (music output). Do not connect loudspeakers to

earth, use only the referenced terminals.

Ampli er GTA 4 Special

The ampli er is suitable for connecting a car sound system

with cinch connections.

For the connection to car sound systems with ISO connec-

tion, use Blaupunkt ISO cinch adapters (7 607 893 093 or

7 607 855 094).

Application options and loudspeaker connection

Quadro mode

Max power 4 x 120 W / 4 Ω Fig. 4, 5

Stereo mode

Max power 2 x 380 W / 4 Ω Fig. 6

Quadro mode

Max power 4 x 190 W / 2 Ω Fig. 4, 5

Quadro mode

RMS power 4 x 60 W / 4 Ω Fig. 4, 5

Stereo mode

RMS power 2 x 160 W / 4 Ω Fig. 6

Quadro mode

RMS power 4 x 85 W / 2 Ω Fig. 4, 5

Frequency response 10 Hz - 25,000 Hz

Signal-to-noise ratio > 90 dB @ RMS power (4 Ω)

Signal-to-noise ratio > 73 dB @ 1 W / 1 kHz (4 Ω)

Distortion factor (RMS) < 0.05 %

Stability 2 Ω (4 Ω in bridge mode)

Input sensitivity 0.3 - 8 V

Low-pass  lter

(Low Pass) 50 - 250 Hz

High-pass  lter

(High Pass)

50 - 250 Hz

Bass boost 0 / 6 / 12 dB / 60 Hz

Dimensions

W x H x D (mm)

W x H x D (")

245 x 55 x 300

9.6 x 2.2 x 11.8

Plus / minus connection

We recommend a minimum cross section of 6 mm

Route commercially available plus cables to the battery

and connect via fuse holder.

Use cable glands for holes with sharp edges.

Securely fasten commercially available minus cables to a

noise-free earth point (chassis screw, chassis metal) (not

to the minus pole of the battery).

Scrap the contact surfaces of the earth point until they

are bright and grease with graphite grease.

Integrated fuses (Fuse)

The fuses integrated in the ampli er (Fuse) protect the power

ampli er and the entire electrical system in case of an error.

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

Connection to car sound system with

cinch output .......................................................................Fig. 3

Loudspeaker connections .............................................Fig. 4/5/6

+12V

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 radio device.

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 0.3 V to 8 V.

If a car sound system of a third party manufacturer is con-

nected, the input sensitivity must be adjusted corresponding

to the manufacturer data.

A few important explanations in this context:

By turning the control clockwise, the input sensitivity of the

ampli er and, therefore, also the volume increases. However,

this is not a volume control; no further ampli er output

can be achieved in the end position, even if it may sound

like that at the beginning. The system merely increases the

volume faster if the volume control of the car sound system

is turned up.

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.

–

GTA_4_Special_22LG.indd 46GTA_4_Special_22LG.indd 46 01.11.2010 13:46:54 Uhr01.11.2010 13:46:54 Uhr

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Blaupunkt GTA 4 Special Edition 2011 Manual

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