Owner's Manual
Installation & System Wiring
It
is
important
to
read this manual thoroughly before starting your installation and always plan
accordingly. Before installing any Wavtech product, disconnect the negative (ground) wire from the
vehicle's battery
to
avoid damage
to
the vehicle
or
yourself. Following
all
guidelines
will
help provide
years
of
enjoyment
with
your Wavtech
bassFREQ
audio interface.
Ground Connection
(GND):
The
GND
terminal must be connected
to
a metal
part
of
the vehicle
that
is
welded
to
the vehicle body with ground plane back
to
the main battery ground attachment
point
(a.k.a.
chassis
ground). This wire should be a minimum
of
18AWG and
as
short
as
possible
to
minimize potential
for
noise to
enter
the
system. The
chassis
ground connection
point
should have all
of
the paint removed
and
be
scuffed
to
the
bare metal. The ground wire should be terminated by a ground specific interlocking
terminal
such
as
the included
EARL
terminal
or
ring terminal securely bolted
to
the vehicle
with
star
or
lock washer and
nut
to
prevent from coming loose. Avoid using factory ground points
to
reduce the
chance
of
induced noise from
other
components.
Power Connection (+12V): The constant power connection should be made
at
the vehicle battery when
possible. For direct battery connection, a 1-amp fuse must be installed in-line
with
the power wire within
18"of
the battery and securely connected to
the
positive battery terminal
bolt
with
a ring terminal.
If
connecting
to
another available constant +12V power source, a 1-amp in-line fuse must
be
added
at
the
connection point. The power wire should
be
a minimum
of
18AWG.
Do
not
install the
Fuse
until
all
other
system connections have been made.
Speaker Level
Input
(SPK):
Connect the speaker wires from the source
unit
to
corresponding terminals on
the interface.
Use
the
SPK
input
if
your source
unit
is
not
equipped
with
RCA
outputs. Always ensure the
correct polarity
of
each channel when making these connections,
as
failure
to
do
so
can
severely
effect
sound performance.
Remote
Input
(REM
IN):
If
the source unit
has
a remote
output
wire (provides +12V only when turned on),
connect
it
to
the
REM
IN
terminal.
If
a remote lead is unavailable, all Wavtech interfacesalso provide
automatic turn-on via DC-offset and audio signal detection. While auto turn-on will
work
in most
applications, there may be some
cases
were a +12V trigger is needed
for
satisfactory results. These signal
detect functions
can
also be individually defeated via internal jumpers
if
necessary.
Remote
Output
(REM
OUT):
Use
the remote
output
to
provide a +12V
trigger
to turn on amplifiers
or
other
components. This +12V
output
is
generated internally by the interface when turned on
either
by
REM
IN
or
signal sensing, and
will
provide over S00mA
of
constant current
for
external devices.
Remote Level Control
(RLC}:
Connect the remote
to
the
bassFREQ's
RLC
port
with
the supplied
16.4ft/5m cable. Plan cable routing before mounting the remote
to
ensure proper length.
If
additional
length
is
required, a standard 8-conductor
CATS
or
CAT6
ethernet
cable
or
extension may be used.
The
cable may also be shortened and re-terminated
with
a
RJ45
connector and
ethernet
crimping tool.
System Examples
Example-1: Speaker Level Input from OEM Radio
0
RLC
REM
OUT
Note: When using a receiver's internal power
IC
to
drive speakers directly, note
that
its speaker
outputs
will
likely clip
below the maximum master volume level. Adjust gain settings accordingly
for
optimum unclipped volume range.
Example-2: Speaker Level Input from OEM Amplifier
DDDDDD
RLC
REM
OUT
Note: In vehicles where the factory radio
has
a fixed level
or
digital
output
to
a factory
amplif
ier, signal
for
the
bassFREQ's
speaker level
input
should be connected
at
the amplifier's output.
3