HELIX Blue B ONE User manual
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BONE
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1-Channel
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Dear
Customer,
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congratulations
on
your
purchase
of
this
high-quality
z
w
HELIX
amplifier.
This
series
highlights
best
quality,
excellent
manufacturing
and
state-of-the-art
technology.
After
30
years
of
experiences
in
the
research
&
develop-
ment
of
audio
products
this
amplifier
generation
sets
new
standards.
The
attractive
typical
HELIX
design
makes
this
amplifier
an
outstanding
and
top
of
the
class
product.
We
wish
you
many
hours
of
enjoyment
with
your
new
HELIX
amplifier.
Yours
AUDIOTEC
FISCHER
Team
General
installation
instructions
for
HELIX
amplifiers
To
find
out
how
HELIX
amplifiers
work
best
for
you,
read
this
manual
carefully
and
follow
the
instructions
for
instal-
lation.
We
guarantee
that
this
product
has
been
checked
for
proper
functioning
before
shipping.
Before
you
start
installation,
disconnect
the
car
battery
at
the
minus
pole.
We
would
urge
you
to
have
the
installation
work
carried
out
by
a
specialist
as
verification
of
correct
installation
and
connection
of
the
unit
is
a
prerequisite
for
warranty
cover
of
the
HELIX
amplifier.
Install
your
amplifier
at
a
dry
location
where
there
is
sufficient
air
circulation
to
ensure
adequate
cooling
of
the
equipment.
For
safety
reasons,
the
amplifier
must
be
secured
in
a
professional
manner.
This
is
performed
by
means
of
four
fixing
screws
screwed
into
a
mounting
surface
offering
sufficient
retention
and
stability.
Before
drilling
the
holes
for
the
screws,
carefully
examine
the
area
around
the
installation
position
and
make
sure
that
there
are
no
electrical
cables
or
components,
hydraulic
brake
lines
or
any
part
of
the
petrol
tank
located
behind
the
mounting
surface
-
otherwise
these
could
be
damaged.
You
should
be
aware
of
the
fact
that
such
components
may
also
be
concealed
in
the
double-skin
trim
panels/mouldings.
General
instruction
for
connecting
the
amplifiers
The
HELIX
amplifiers
may
only
be
installed
in
motor
vehicles
which
have
a
12
Volt
minus
pole
connected
to
the
chassis
ground.
Any
other
system
could
cause
damage
to
the
amplifier
and
the
electrical
system
of
the
vehicle.
The
plus
cable
from
the
battery
for
the
complete
system
should
be
provided
with
a
main
fuse
at
a
distance
of
max.
30
em
from
the
battery.
The
value
of
the
fuse
is
calculated
from
trw
maximum
total
current
input
of
the
car
audio
system.
Install
the
cabling
in
a
manner
w!lich
precludes
any
danger
of
the
leads
being
exposed
to
shear,
crushing
or
rupture
forces
.
If
there
are
sharp
edges
in
the
vicinity
(e.g.
holes
in
the
bodywork)
all
cables
must
be
cushioned
and
protected
to
prevent
fraying.
Never
lay
the
power
supply
cables
adjacent
to
leads
and
lines
connecting
other
vehicle
equipment
(fan
motors,
fire
detection
modules,
gas
lines
etc.).
In
order
to
ensure
safe
installation,
use
only
high-quality
connections
and
materials.
Ask
your
dealer
for
high
quality
accessories.
7
8
EQUIPMENT
FEATURES
AND
CONTROL
ELEMENTS
HELIX
B
ONE
1
Power/Protect
LED
2
Connecting
the
ground
cable
3
Connecting
the
remote
lead
7
Signal
outputs
8
Signal
inputs
9
Highlevel
speaker
input
10
Level
controls
for
input
sensitivity
11
Frequency
control
subsonic
filter
12
Bass-Boost
control
4
Connecting
the
battery
cable
5
Fuses
6
Speaker
terminals
13
Lowpass
control
14
Bass
remote
connector
15
Master/slave
mode
switch
16
Input
master/slave
mode
17
Output
master/slave
modus
1
Power/Protect
LED
The
Power/Protect
LED
indicates
the
operating
state
of
the
amplifier.
A
green
LED
shows
that
the
amplifier
is
ready
for
operation.
A
red
LED
indicates
that
a
malfunction
has
occurred.
A
malfunction
may
have
different
causes
as
the
HELIX
B
ONE
is
equipped
with
different
protective
circuits.
These
protections
shut
off
the
amplifier
in
case
of
overheating,
over-
and
undervoltage,
short-circuit
on
loudspeakers,
low
impedance
and
false
connection.
Please
check
for
connecting
failures
such
as
short-
circuits,
wrong
connections,
wrong
adjustments
and
over-
temperature.
If
the
amplifier
does
not
turn
on
it
is
defect
and
has
to
be
send
to
your
local
authorized
dealer
for
repair
service.
A
detailed
description
of
the
malfunction
and
the
purchase
receipt
has
to
be
attached.
2
Connecting
the
ground
cable
The
ground
cable
should
be
connected
to
a
central
ground
reference
point
(this
is
located
where
the
negative
terminal
of
the
battery
is
grounded
at
the
metal
body
of
the
vehicle),
or
to
a
bright
bare-metal
location
on
the
vehicle
chassis,
i.e.
an
area
which
has
been
cleaned
of
all
paint
residues.
Recommended
cross
section:
min.
25
mm
2•
3
Connecting
the
remote
lead
The
remote
lead
should
be
connected
to
the
automatic
antenna
(aerial
positive)
output
of
the
head
unit
(radio).
This
is
only
activated
if
the
head
unit
is
switched
ON.
Thus
the
amplifier
is
switched
on
and
off
with
the
head
unit.
4
Connecting
the
battery
cable
Connect
the
+
12
V
power
cable
to
the
positive
terminal
of
the
battery.
Recommended
cross
section:
min.
25
mm
2•
5
Fuses
The
input
fuses
are
connected
in
parallel
and
provide
protection
against
an
internal
equipment
fault,
i.e.
the
system
must
be
additionally
protected
by
a
further
line
fuse
located
in
the
vicinity
of
the
battery
(max.
distance
from
battery:
30
em
I
12
11
).
The
fuse
value
for
the
HELIX
B
ONE
is
3x
30
Amperes.
6
Speaker
terminals
To
connect
the
speaker
cables.
See
figures
on
page
1
0.
Never
connect
the
loudspeaker
cables
with
the
car
chassis
ground.
It
damages
your
amplifier.
Ensure
that
the
loudspeaker
systems
are
correctly
connected
(phase),
i.e.
plus
to
plus
and
minus
to
minus.
Exchanging
plus
and
minus
causes
a
total
loss
of
bass
reproduction.
The
plus
pole
is
indicated
on
most
speakers.
The
impedance
per
channel
should
not
be
lower
than
2
Ohms.
In
this
case
the
protection
electronics
shut
down
the
amplifier.
7
Signal
outputs
Wide
band
(fullrange)
RCA
outputs
to
connect
other
amplifiers.
8
Signal
inputs
The
HELIX
B
ONE
is
equipped
with
two
RCA
inputs.
They
can
be
connected
with
the
pre-amplifier
output/outputs
or
line
outputs
of
the
control
device
(head
unit,
processor
etc.).
In
case
only
one
of
the
signal
inputs
is
connected,
the
output
level
must
be
adjusted
with
the
GAIN
control
or
a
Y-RCA
adapter
can
be
used.
9
Highlevel
speaker
input
The
HELIX
B
ONE
is
equipped
with
four
extra
highlevel
speaker
inputs.
They
can
be
directly
connected
to
the
speaker
outputs
of
the
head
unit.
We
recommend
to
operate
the
highlevel
input
only
with
the
enclosed
connecting
cable
or
with
a
HELIX
wire
harness
(optional).
10
Level
controls
for
input
sensitivity
These
controls
can
be
used
to
match
the
input
sensitivity
of
the
individual
channels
to
the
output
voltage
of
the
connected
head
unit.
These
controls
are
not
volume
controls
and
are
solely
intended
for
the
purpose
of
sensitivity
trimming.
The
control
range
extends
from
0,2
to
6
V.
11
Frequency
control
subsonic
filter
The
adjustable
subsonic
filter
relieves
the
amplifier
and/or
the
subwoofer
from
non-repeatable
frequencies
(similar
to
a
highpass
filter).
The
control
range
extends
from
15
-
50
Hz
dB
-15
b,,,j,.~,;,._,~~-+-
10
15
20
50
100
200
(/)
(~
15Hz
50
Hz
9
10
12
Bass-Boost
control
To
raise
the
bass
signal
from
0
to
18
dB
at
45
Hz.
dB
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·
..
··.···.·.·.·.·.··.·.·.···
....
...•............
,,,,,,,.
Hz
20
:30
45 1
00
200
300
500
/ '
OdB
18dB
13
Lowpass
control
To
adjust
the
crossover
frequency
form
35
Hz
to
250
Hz.
dB
A
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0
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..
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10 15
20
50
100
200
500
1K
2K
/ \
35Hz 250kHz
14
Bass
remote
connector
To
control
the
bass
level
from
the
driver
position.
15
Master/slave
mode
switch
To
chose
the
operation
mode
of
the
amplifier.
In
the
master/slave
mode
two
bridged
HELIX
B
ONE
amplifiers
are
operated
in
oder
to
double
the
output
power.
Connection
see
figure
below.
The
regular
switch
position
is
on
,Master"
16
Input
master/slave
mode
This
input
connects
amplifiers
operated
in
slave
mode
(switch
15)
to
the
master/slave
output
of
the
amplifier
operated
in
master
mode.
17
Output
master/slave
mode
This
input
connects
amplifiers
operated
in
master
mode
(switch
15)
to
the
master/slave
input
of
the
amplifier
operated
in
slave
mode.
This
input
must
be
used
on
the
amplifier
operated
in
master
mode.
CONNECTION
OF
MASTER
AND
SLAVE
MODE
HELIX
B
ONE
from
head
unit
Slave
.y
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··~~·
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red
+
black
The
master
mode
(switch
15)
amplifier
controls
all
features
(lowpass,
gain,
bass-
boost,
subsonic)
for
both
amplifiers.
It
is
connected
to
the
plus
speaker
terminal.
The
MINUS
speaker
terminals
of
both
amplifiers
must
be
directly
connected.
Recommended
cross
section:
min.
6
mm
2.
LJ
D
In
master/slave
mode
the
impe-
dance
of
the
subwoofer
should
not
be
lower
than
2
Ohms!
The
amplifier
operated
in
slave
mode
(switch
15)
is
controlled
by
the
amplifier
operated
in
master
mode.
The
PLUS
speaker
terminal
of
the
slave
amplifier
must
be
connected
to
the
MINUS
speaker
terminal.
Dual-Mono
- + - +
D
Q
Output
power
RMS
I
max.
Mono
+
LJCS
-
at
4
Ohms
.................................................................. 1x
350
I
700
Watts
-
at
2
Ohms
................................................................ 1x
600
I
1.200
Watts
-
at
1
Ohm
.................. .......... ....... .................. ......... ... 1x
950
I
1.900
Watts
Frequency
response
................................................................ 1
0
Hz
-
250
Hz
Bass-Boost
......................................................................
0-
18
dB
I
45
Hz
Lowpass
....................................................................
35
-
250
Hz
adjustable
Subsonic
....................................................................
15
-
50
Hz
adjustable
Total
harmonic
distortion
...................................................................
<
0,1
%
Signal-to-noise
ratio
.....................................................................
>
95
dB
Damping
factor
.............................................................................
200
Input
sensitivity
.....................................................................
0,2
-6
Volts
Input
impedance
high
level
..............................................
.
...................
1
kOhm
Input
impedance
RCA
...................................................................
22
kOhms
Fuse
............................................................................
3x
30
Amperes
Dimensions
(H
xWx
D)
..........................................................
2x
10.2
x
12.6
inch
The
limited
warranty
complies
with
legal
regulations.
Failures
or
damages
caused
by
overload
or
improper
use
are
not
covered
by
the
warranty.
Please
return
the
defective
product
only
with
a
valid
proof
of
purchase
and
a
detailed
malfunction
description.
Technical
specifications
are
subject
to
change!
Errors
are
reserved!
For
damages
on
the
vehicle
and
the
device,
caused
by
handling
errors
of
the
device,
we
cannot
assume
liability.
All
HELIX
amplifiers
are
tagged
with
an
E-Certification
Number
and
also
a
CE-Certification
mark.
Thereby
these
devices
are
certified
for
a
use
inside
vehicles
inside
the
European
Union
(EU).
11
AUDIOTEC
FISCHER
Audiotec
Fischer
GmbH
Gewerbegebiet
Lake
II
•
Hunegraben
26
•
D-57392
Schmallenberg
Tel.:
+49
(0)
29
72-97
88
0•
Fax:
+49
(0)
29
72-97
88 88
E-mail:
•
Internet:
www.audiotec-fischer.com
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