3
THA 275 PnP
The amplifi er power cable must be fi tted with
a fuse no more than 30 cm from the battery (see
Fig. 2a) 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
installation drawing). Observe the maximum power
handling capacity (music output). Do not connect
loudspeakers to earth, use only the referenced
terminals.
Amplifi er THA 275 PnP
The amplifi er is particularly suited for connecting to
vehicle-specifi c plug-and-play adapters.
For the connection to car sound systems with ISO
connection, use only Blaupunkt PnP 25 or PnP 55
adapters (part no. 7 607 622 010 or 7607 622 011).
Application options and loudspeaker connection:
Stereo mode
Max power
Max power
RMS power
RMS power
2 x 150 watt / 4 Ω
2 x 180 watt /
2
Ω
2 x 75 watt / 4 Ω
2 x 90 watt /
2
Ω
Fig. 4
Fig. 4
Bridge mode
Max power
RMS power
1 x 400 watt /
4
Ω
1 x 190 watt /
4
Ω
Fig. 4
Fig. 4
RMS power acc. to CEA-2006
(<1% HD/+14.4 V)
Frequency
response
10 Hz - 30,000 Hz
Signal-to-noise
ratio
> 95 dB @ RMS power
Signal-to-noise
ratio
> 78 dB @ 1 w/ 1 kHz
Distortion factor
(RMS)
< 0.05%
Stability
2 Ω (4 Ω in bridge mode)
Input sensitivity
0.3 - 8 V
Input sensitivity
Direct AUX IN
0,3 V
Low-pass fi lter
(Low Pass)
50-250 Hz
High-pass fi lter
(High Pass)
10-250 Hz
Bass boost
0 dB to +12 dB
Inputs
2 x Cinch/RCA
2 x HighLevel speaker PnP
1 x Direct Aux inputs,
3.5 mm stereo
Outputs
2 x loudspeaker
ENGLISH
Warranty
We provide a manufacturer warranty for our products
bought within the European Union. You can view the
warranty terms at
www.blaupunkt.de
or request them
directly from:
Blaupunkt GmbH
Hotline
Robert-Bosch-Str. 200
D-31139 Hildesheim, Germany
Recommendation:
The performance of an amplifi er can only be as good
as its installation. A correct installation increases the
overall performance of your car sound system. The THA
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.
Safety notes
Please observe the following safety notes
during the installation 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 1.5 mm
2
(A.W.G 16).
- 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.
Installation and connection instructions
With respect to accident safety, the THA 275 PnP must
be secured in a professional way.
When selecting the installation location, select a dry
location that offers suffi cient air circulation for cooling
the amplifi er.
The installation surface must be suitable to accept the
accompanying screws and provide a fi rm support.
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