Blaupunkt GTA 4 Special - USA Section: Advanced Features and Disposal

Bridged
loudspeaker
connections
The
GTA
amplifier
can
also
be bridged for a
mono
configura-
tion. This allows
the
amplifier
to
be used for one
or
several
subwoofers or mid-range drivers.
In
this configuration, the
amplifier
combines
the
right
and
left channel
to
a single-
channel
output
(mono output).
Note:
The
amplifier
can add the right and left signal
information
only
if
the
right
as
well
as
the
left
RCA
connection were
carried out.
Caution:
In
a bridge circuit, the
amplifier
load
must
be
4
ohm
or
higher.
A lower
load
leads
to
an
overheating
or
switch-off
of the amplifier
and
can
cause
permanent damages.
Adjusting the type
and
range of the
frequency
crossovers
With the
GTA
4
Special,
the type
of
frequency crossover
(i.e.
"Low
Pass"
or
"Hi-Pass") and the desired entry frequency can
be adjusted.
For
example,
if
a pair
of
subwoofers
is
to
be
connected,
the
low-pass
settings shown are required
(Fig.
3).
The entry frequency
is
dependent upon the frequency
range
of
the
loudspeakers
(see
recommended frequency
range
of
the loudspeakers).
High-Pass
At a setting
of
80Hz,
the
amplifier
has
a frequency range
of
80
Hz
to
25,000
Hz.
Low-pass
frequency control
This
control
is
active
if
the switch
is
in the position
"Low-Pass'~
and
allows
for setting the desired entry frequency.
Example:
At a setting
of
150
Hz,
the
amplifier
has
a frequency range
of
1
0
Hz
to
150
Hz.
Bass
boost
The
bass
boost
control
is
used
to
adjust
the
bass
response
of
the
amplifier.
The setting options are:
0
dB
I
+6
dB
I+
12
dB.
Power-on indicator
(POWER
I
PROTECTION)
Green
LED:
Output
stage on,
regular
operating status.
Red
LED:
Output
stage
is
electronically
switched
off
due
to
an
error.
Recycling
and
disposal
"t:(
Please
use
the
return and
collection systems
avail-
~
able
to
dispose
of
the product.
-
Subject
to
changes
GTA
4
Special
Edition
2011
I
47