Publicité
Usage options and loudspeaker connection:
Channels
Max. power
4 ohms
Max. power
2 ohms
RMS power
4 ohms
RMS power
2 ohms
Frequency
response
Signal-to-noise
ratio
Input impedance
Damping factor
Input sensitivity
Stability
FREQ.
(Low Pass)
Sloope
Subsonic filter
Remote control
for bass GAIN
Dimensions
WxHxD (mm)
Positive/negative connection
The cross section of the positive and negative cables must be at
least 12 mm
2
.
Use cable grommets to protect cables against sharp-edged holes.
Securely screw a standard 12 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.
Connection examples
Connecting the voltage supply ................................................... Fig. 2
Connection to car radios with RCA AUX-OUT ........................... Fig. 3
Connection to car radios with loudspeaker AUX-OUT ............ Fig. 3 *
Loudspeaker connections .......................................................... Fig. 4
Connecting the wire remote control (REMOTE GAIN) .............. Fig. 5
The switching line must be connected when connection is carried out
using the RCA jacks or the loudspeaker jacks of the car radio.
GAIN control
You can use the GAIN control to adjust the input sensitivity of the
Velocity power amplifier to the AUX-OUT voltage of your car radio's
preamp AUX-OUT.
The setting can be adjusted between 0.3 V and 8 V.
When connecting a car radio produced by another manufacturer, you
must adjust the input sensitivity in accordance with the information
provided by the manufacturer.
Please note that the GAIN control is not a control for adjusting
the volume!
REMOTE GAIN
Connection for the supplied wire remote control (5 m).
This gives you the convenience of controlling the bass GAIN remotely
(see Fig. 5).
INPUT
Preamp inputs for the right and left channels. Please use high-quality
Velocity RCA cables for this connection.
VA 1400
1
1 x 1200 watts
1 x 1800 watts
1 x 450 watts
(THD @ < 0.02 %)
1 x 800 watts
(THD @ < 0.02 %)
10 - 250 Hz
> 100 dB/A
> 10 kOhm
> 100
0.3 - 8 V
2 ohms
50 - 250 Hz
12dB / 24 dB
10 Hz (12 dB/Oktave)
Yes
490 x 60 x 300
2
negative cable to an interfer-
AUX-OUT
AUX-OUTs for connecting an additional amplifier (formation of chains
of amplifiers). Please also use high-quality Velocity RCA cables for
this connection.
Sloope
SLOOPE
10dB
0dB
-10dB
-20dB
-30dB
-40dB
10
20
50 100 200
Settings for a subwoofer
In order to obtain the best sound when a subwoofer is connected, the
subwoofer must be separated as far as the frequencies it receives are
concerned, i.e. it must only be fed with low frequencies (bass).
1. Firstly, turn down the GAIN control on the amplifier to minimum
and set the FREQ. control to its centre position.
2. Now play some music on your car sound system that you are very
familiar with and that contains some low bass (e.g. pop music).
Now slowly increase the volume of the subwoofer by turning the
GAIN control on the amplifier in a clockwise direction until you feel
that the sound of the music is well balanced, i.e. the bass is neither
too weak nor overpowering.
3. Now listen to the relationship between deep male voices and the
upper bass and also take note of the relationship between the up-
per bass (kick bass) and the lower bass. The bass should ideally
sound crisp and have a clear low bass component, and male voic-
es should neither sound too weak nor should they billow out. You
can stop making adjustments if you are happy with the sound. If
not, move on to steps 4 and 5.
4. If male voices seem to billow out or the low bass is too weak, you
should turn the FREQ. control slightly towards minimum and then
continue making your adjustments as described in point 2 onwards.
5. If the bass sounds low but dirty and booming or the male voices
sound too weak, you should turn the FREQ. control slightly towards
maximum. Next, continue making your adjustments as described
+12V
in point 2 onwards.
If you want to precisely optimise the acoustic settings of the XOVER,
we recommend you obtain advice from a Blaupunkt dealer.
It is very important that you take into account the specifications of the
loudspeakers being used whilst you are adjusting the XOVER.
SUBSONIC
The subsonic filter is used when a subwoofer is connected to the am-
plifier. To protect the subwoofer against mechanical overload due to
low bass frequencies that fall outside our hearing range.
Integrated fuses
The fuses that are integrated in the amplifier protect the power ampli-
fier and the entire electrical system in the event of a fault. If the fuse
needs to be replaced, never bypass/bridge the fuse and never replace
it with fuse types that are designed for higher currents.
POWER ON / PROTECTION LED
Blue light on the top of the amplifier:
POWER SUPPLY -This lamp lights up when the amplifier receives a
+12-V switch-on signal from the radio. If the lamp does not light up
although the amplifier is connected correctly, there may be a short
circuit present.
4
12dB 24dB
500
1k
2k
5k
10k/Hz
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