Blaupunkt Stereo Amplifier EMA 255 User Manual

 

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Bitte nutzen Sie zur Entsorgung des Produktes die 
zur Verfügung stehenden Rückgabe- und Sammel-
systeme.

Änderungen vorbehalten.

We provide a manufacturer's warranty for products bought 
within the European Union. For devices purchased outside 
the European Union, the warranty terms issued by our re-
spective responsible domestic agency are valid. The warranty 
terms can be called up from www.blaupunkt.com.

The performance of an amplifi er can only be as good as its in-
stallation. A correct installation increases the overall perform-
ance of your car sound system. The EMA amplifi er should be 
installed by a trained person. If you would to install it yourself, 
please read these installation instructions very carefully and 
allow yourself suffi

  cient time for the installation.

In conclusion, allow us a few words about the topic of health 
protection: 
During the playback of music in your vehicle, please consider 
that continuous sound-pressure levels above 100 dB can 
lead to permanent damages to the human ear and even to 
loss of hearing. Using today's high-performance systems 
and loudspeaker confi gurations allows for reaching sound-
pressure levels above 130 dB.

Please observe the following safety notes during the instal-
lation and connection.

Disconnect the negative pole of the battery! Observe the 
safety notes of the vehicle manufacturer.

When you drill holes, ensure that you do not damage any 
vehicle components.

The cross section of the plus and minus cable may not 
be less than 6 mm

2

.

Use cable glands for holes with sharp edges. 

An incorrect installation can result in malfunctions of the 
electronic vehicle systems or your car sound system.

With respect to accident safety, the EMA 255 must be secured 
in a professional way.

When selecting the installation location, select a dry loca-
tion that offers sufficient air circulation for cooling the 
amplifi er.

The  EMA 255 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 fi rm support.

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The amplifi er power cable must be fi 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 amplifi er and battery. 
The fuse of the amplifi er protects only the amplifi er, not the 
vehicle battery.

Use loudspeakers with 2 - 4 Ω 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.

Stereo mode
Max power

2 x 110 W / 4 Ω 

Fig. 4, 5

Mono mode
Max power

1 x 330 W / 4 Ω

Fig. 6

Stereo mode 
Max power

2 x 160 W / 2 Ω

Fig. 4, 5

Stereo mode
RMS power

2 x 55 W / 4 Ω

Fig. 4, 5 

Mono mode
RMS power

1 x 165 W / 4 Ω

Fig. 6

Stereo mode
RMS power

2 x 80 W / 2 Ω

Fig. 4, 5 

10 Hz - 30,000 Hz

> 85 dB @ RMS power

> 75 dB @ 1 W / 1 kHz

< 0.08 %

2 Ω (4 Ω in bridge mode)

0.2 - 10 V

Low-pass fi lter 
(Low Pass)

50 - 250 Hz

High-pass fi lter 
(High Pass)

80 Hz

0 dB / 6 dB / 12 dB

Dimensions
W x H x D (mm)
W x H x D (")

184 x 52.5 x 183
7.25 x 2.1 x 7.2

You can select between 2 diff erent audio inputs;

Cinch (RCA)

Hi level (loudspeaker connections)

Use only one of the audio inputs; otherwise, it may lead to 
audio interferences.

The preamplifi er outputs are connected to the cinch (RCA) 
sockets 

1

 via a shielded sound cable. 

With control via the loudspeaker outputs, the input connec-
tions of pos. 

2

/

3

 are fed to the closest loudspeaker cables 

(front or rear) on the left and right. They are separated and 
connected to the input connections. The polarity of the + or - 
connections must be observed. Bridge output stages (BTL) can 
also be connected directly without an additional adapter.

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EMA_255_22LG.indd   5

EMA_255_22LG.indd   5

29.07.2011   9:15:51 Uhr

29.07.2011   9:15:51 Uhr