Owner's Manual
WIRING
DIAGRAM
See
page
26
for amplifier wiring diagrams.
INSTALLATION
AND
MOUNTING
MTX
recommends your new
THUNDER
Series amplifier
be
installed
by
a
12
volt installation specialist.
Any
deviation from specified installation instructions
can
cause serious
damage
to
the
amplifier,
speakers and/or vehicle's electrical system.
Damage
caused from improper installation
is
NOT
covered under warranty.
Please
verify
all
connections prior
to
system turn
on.
1.
Disconnect
the
vehicle's negative battery cable.
2.
Determine
the
·mounting
place for your
MTX
amplifier.
Keep
in
mind
there should
be
sufficient
air flow for proper cooling. Mark the mounting holes from
the
amplifier
to
be
drilled. Before
drilling
make
sure
all
vehicle wires,
gas
lines,
brake
lines
and
gas
tank
are
clear
and
will not
interfere with installation. Drill the desired holes
and
mount
the
MTX
amplifier.
3.
Install a positive
(+)
power cable from
the
vehicle's battery through
the
firewall using a grommet
or
firewall bushing to
avoid
cable
damage
from sharp
edges
of
the
firewall.
Run
the
cable through
the
interior of
the
vehicle
and
connect it
to
the
amplifier's
(+BATT)
terminal.
Do
not connect
to
the
battery at this time.
NOTE:
Use
only proper
gauge
wire for
both
positive
and
negative connections.
4.
Install a circuit breaker
or
fuse
within
18
inches of
the
battery.
This
effectively lowers
the
risk
of severe
damage
to
you
or your vehicle
in
case
of
a short circuit
or
accident. Make
sure
the
circuit breaker
is
switched
Off
or
the
fuse
is
taken out of
the
fuse
holder untill
all
connections
are
made.
Now connect your positive power cable
to
the
positive battery terminal of
the
battery.
5.
Grounding -
Locate
a proper ground point
on
the
vehicle's chassis
and
remove
all
paint, dirt
or
debris
to
reveal a
bare
metal surface. Attach the ground wire
to
that contact point. Connect
the
opposite
end
of
the
ground wire
to
the
(G
NO)
terminal
on
the
MTX
amplifier.
6.
Connect a
Remote
Turn-On
wire from
the
source unit
to
the
MTX
amplifier's
(REM)
terminal. If
the
source unit
does
not
have
a dedicated
Remote
Turn-On
lead,
you
may
connect
to
the
source unit's
Power Antenna lead.
7.
Supply
the
signal
to
your
MTX
amplifier
by
connecting
the
signal cables using
high
quality
RCA
to
the
corresponding outputs at the source unit
and
inputs of
the
amplifier.
8.
Connect your speakers
to
your
MTX
amplifier's speaker terminals using
the
correct
gauge
speaker wire.
Your
MTX
amp
can
drive a
2Q
(THUNDER75.4
&
THUNDER500.1)
and
1Q
(THUNDER1000.1)
minimum
load
for optimum
power.
9.
Double
check
all
previous installation steps,
in
particular, wiring
and
component connections.
Once
verified, reconnect the vehicle's negative battery cable, turn
the
circuit breaker
On
or place
the
fuse
in
the
fuse
holder.
NOTE:
Gain
Levels
on
the
amplifier should
be
turned
all
the
way down (counter clockwise) before
proceeding with adjustments.
MTX.COM