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BASS BOOST
Mit Hilfe des Bass Boost-Reglers kann die Basswiedergabe des Veloci-
ty-Verstärkers eingestellt werden. Der Einstellbereich reicht von 0 dB
bis +15 dB.
SUB SONIC
Das Sub Sonic-Filter dient dem Verstärkerbetrieb bei angeschlosse-
nem Subwoofer. Es kann geregelt werden um den Subwoofer vor me-
chanischer Überlastung durch tiefe nicht mehr in den Hörbereich fal-
lende Frequenzen zu schützen.
Integrierte Sicherungen (FUSE)
Die im Amplifier integrierten Sicherungen (Fuse) schützen die End-
stufe und das gesamte elektrische System im Fehlerfall. Bei dem Ein-
satz einer Ersatzsicherung bitte niemals Sicherungen überbrücken oder
gegen Typen mit höherem Strom auswechseln.
Betriebsanzeige (POWER / PROTECTION)
Blaues Licht: Endstufe an, regulärer Betriebszustand.
Rotes Licht: Endstufe ist elektronisch abgeschaltet da Fehlerfall vor-
liegt.
Änderungen vorbehalten.
Introduction (GB)
Congratulations on purchasing this high-quality car audio amplifier.
As innovators in the world of car hi-fi, we are pleased to introduce you
to the new future-oriented technology that is integrated in our Class D
amplifiers.
Class D amplifiers are considerably more efficient than standard ana-
logue technologies. The efficiency of analogue amplifiers is around
60 % whilst our digital power amplifiers convert up to 80 % of the input
energy into sound. You could describe the results as "more sound
produced from less".
Furthermore, digital amplifiers heat up so little that they can also be
installed in places that are not very well ventilated, such as beneath
the seats.
The wire remote control that is included allows you to adjust the bass
level conveniently from your seat.
To ensure that the sound quality is optimised, we recommend that the
installation of your new Velocity amplifier be carried out by an author-
ised Velocity dealer.
Please allow us to make a few comments on the issue of health:
When listening to music in your vehicle, remember that continuous
sound pressure levels of over 100 dB can lead to permanent hearing
damage and even total hearing loss. Modern high-powered systems
and high-quality loudspeaker configurations are capable of producing
sound pressure levels exceeding 130 dB.
We are convinced that you will very quickly appreciate the advantag-
es of our Class D amplifiers and we would like to take this opportunity
to wish you a lot of fun with this new component in your sound system.
We provide a manufacturer guarantee for our products bought within
the European Union. You can view the guarantee conditions at
www.blaupunkt.de or ask for them directly at:
Blaupunkt GmbH
Hotline
Robert-Bosch-Str. 200
D-31139 Hildesheim
You can also obtain further information on our Velocity series on the
Internet at http://www.velocity.de
Safety notices
Installation and connection instructions
The battery's negative terminal must be disconnected for the entire
time it takes to install and connect the device.
You must observe the vehicle manufacturer's safety notices (airbags,
alarm systems, trip computers, immobilizers) regarding this.
As regards safety in the event of an accident, the Velocity power am-
plifier must be professionally secured in position. The surface to which
it is attached must be suitable for the screws that are included and
must provide a secure hold.
When drilling holes, you must make sure that none of the vehicle com-
ponents (e.g. battery, cables, fuse box) can be damaged in the process.
The amplifier must be secured in a suitable installation location, e.g.
beneath the seats or in the car boot (see Fig. 1).
When choosing an installation location, you should select one which
is dry and which provides sufficient air circulation to cool the amplifier.
Use cable grommets to protect cables against sharp-edged holes.
Use loudspeakers with an impedance of 2-4
imum load rating (music power rating).
Use loudspeaker connecting cables up to 8 mm
speakers to earth – only use the correct terminals as indicated.
The cross section of the positive and negative cables must be at
least 16 mm
2
.
The positive cable between the battery and the amplifier must be
protected directly at the battery using a fuse holder (75 amperes).
Velocity High End Reference Amplifier VD 504
The amplifier is suitable for connection to car audio systems that are
equipped with RCA connections.
If you want to connect it to car audio systems that are equipped with
an ISO connection, please use the Blaupunkt ISO-RCA adapter.
Usage options and loudspeaker connection:
VD 504
Channels
4/3/2
Max. power
4x100 / 2x100 + 1x300 watts
4 ohms
Max. power
4x200 watts
2 ohms
RMS power
4x50 / 2x50 + 1x150 watts
4 ohms
(THD @ < 0.07 %)
RMS power
4x80 watts
2 ohms
(THD @ < 0.07 %)
Frequency
20-20000 Hz
response
Signal-to-noise
> 95 dB/A
ratio
Input sensitivity
0.3 - 8 V
Stability
2 ohms
Low pass filter
40 - 160 Hz
(Low Pass)
High pass filter
40 - 600 Hz
(High Pass)
Bass boost
+15 dB (45 Hz)
Subsonic filter
20 - 55 Hz
Remote control
for bass level
Channels 3+4
Dimensions
WxHxD (mm)
365 x 58 x 268
with end caps
465 x 65 x 279
Positive/negative connection
The cross section of the positive and negative cables must be at
2
least 16 mm
.
Use cable grommets to protect cables against sharp-edged holes.
Securely screw a standard 16 mm
ence-free earth connection point (bolt connected to the car body,
car body sheet metal) – though do not connect it to the negative
terminal of the battery. Scratch the surface down to the bare met-
al at the point at which the earth contact is made and apply graph-
ite grease.
3
Ω
. Observe the max-
2
. Do not connect loud-
Fig. 5
Fig. 5
Fig. 5
Fig. 5
2
negative cable to an interfer-
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