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
470
SF,
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
80
Hz,
the
amplifier
has
a frequency range
of
80
Hz
to
30,000
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
~
Please
use
the
return and collection systems avail-
A able
to
dispose
of
the product.
-
Subject
to
changes
GTA
470
SF
I 47
To Next Page
Loading...
Need help?
General