A.CONNECTING THE POWER(Fig.1)
4/8 GAUGE(Or thicker if planning for additional Amplifiers)wire is recommended for both the
power and ground wires.12 Gauge,for the remote turn wire.Both types are
available at most Mobile Audio Dealers or Installation Shops.
Toavoidunwantedignitionnoisecausedbyground loops,it is essential that the
Amplifier be grounded to a clean,bare,metal surface of the vehicles chassis.
NOTE:
(2)+12Volt (Fused) Constant Power:To Battery(+)
Due to the power requirements of the Amplifier,this connection should be made
directly to the positive (+) terminal of battery.For safety measure,install an in-line Fuse
Holder (not included) as close to the battery positive (+) terminal as possible with an
ampere rating:not to exceed total value of fuses in Amp.
PS2-150:10A/PS4-300:15A
(3)Remote Turn-On Input:To Power Antenna output of Car Stereo
This Amplifier is turned ON remotely when the vehicle s stereo is turned ON .
CAUTION:
AS APRECAUTION,IT ISADVISABLE TO DISCONNECT THE VEHICLE S BATTERY BEFORE MAKING CONNECTION
TO THE +12 VOLTS SUPPLY WIRING.
NOTE:
GROUND WIRE SHOULD NOT BE EXTENDED MORE THAN 3 FT.(1 METER)
IF YOUR RADIO DOES NOT HAVE +12 VOLT OUTPUT LEAD WHEN THE RADIO IS TURNED ON,
THE REM TERMINAL ON THE AMPLIFIER CAN BE CONNECTED TO VEHICLE S ACCESSORYCIRCUIT THAT IS LIVE
WHEN THE KEY IS ON .
(1)GROUND:To Vehicle Chassis
WIRING CONNECTIONS
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PLANNING YOUR SYSTEM
Before beginning the installation,consider the following:
a.If you plan to expand your system by adding other components sometime in the future,
Make sure an adequate space is left,and cooling requirements are met.
b.Speaker level or RCA,which to use and why?
If your source unit is equipped with both types of outputs,Use the RCA s for the amplifier
inputs,as this provides for increased bandwidth and you can still utilize the speaker
Outputs,for driving the (smaller) front speakers directly.
NOTE:
DISTORTION LEVEL IS CONSIDERABLYLOWER FROM PRE-AMP(LOW LEVEL) OUTPUTS,THAN SPEAKER
(HIGH LEVEL)OUTPUTS.
c.Are your components matched?The peak power rating of your speakers must be equal
or greater than the Amplifier s.They also must be 2-8 Ohms impedance(This information
is normally printed on the speaker magnet).
d.Consider both the length of your leads,and routing when determining the mounting
location.Pre-Amp input Jacks require a length of high quality shielded male to male RCA
patch cord.
MOUNTING YOUR AMPLIFIER
The mounting position of your Amplifier will have a great effect on its ability to dissipate the
heat generated during normal operation.It has an ample heat sink for heat dissipation,and it is
also designed with a thermal shut-down(for heat protection)circuit,making air to be
directed over the cooling fins will improve heat dissipation dramatically.DO NOT enclose
the amplifier in a small box or cover it so that air cannot flow around fins.
Temperaturesin car trunks have been measured as high as 175 F(80 c)in the summer time.
Since the thermal shut-down point for the Amplifier in 185 F(85 c)it is easy to see that it must
be mounted for maximum cooling capability.To achieve maximum advantage of
convection air flow in an enclosed trunk,mount the amplifier in a vertical position,on a
vertical surface.
Cooling requirements are considerably relaxed when mounting inside the passenger
compartment since the driver will not often allow temperatures to reach a critical point.
Floor mounting under the seat is usually satisfactory as long as there is at least 1 inch(2cm)
above the Amplifier s fins for ventilation.
a.Select a suitable location that is convenient for mounting,is accessible for wiring,and
has an ample room for air circulation and cooling.
b.Use the amplifier as a template to mark the mounting holes.Remove the Amplifier and
drill 4 holes.With extreme caution,inspect underneath surface before drilling.
c.Secure the Amplifier using the screws provided.
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