Power Acoustik lt1920 Guia Do Utilizador
3
PLANNING YOUR SYSTEM
Before beginning the installation, consider the following:
a. If you plan to expand your system by adding other components somrtime in the future,
a. If you plan to expand your system by adding other components somrtime in the future,
ensure adequate space is left, and cooling requirements are met.
b. Should you use high or low inputs?
Your Amplifier has been designed to accept either High-Level (speaker outputs from your
radio) or Low-Level (Pre-Amp outputs from your radio) signal source.
radio) or Low-Level (Pre-Amp outputs from your radio) signal source.
If your radio/source is equipped with Pre-Amp outputs, it is possible to utilize them to drive
the Amplifier and connecting (Amplifier) to the 2 rear speakers. Then, use the built-in
power of your radio to drive the 2 front speakers.
the Amplifier and connecting (Amplifier) to the 2 rear speakers. Then, use the built-in
power of your radio to drive the 2 front speakers.
NOTE:
DISTORTION LEVEL IS CONSIDERABLY LOWER 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 limpedance (This information
os normally printed on the speaker magnet).
os 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 requir a length of high quality shielded male to male RCA
patch cord.
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 ample heat sink for heat dissipation, and
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 of cover it so that air cannot flow around fins.
heat generated during normal operation. It has ample heat sink for heat dissipation, and
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 of cover it so that air cannot flow around fins.
Temperatures in 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 is 185’F(85’c) it is easy to see that it must
be mounted for maximum cooling capability. To achieve maximum advantage of
convection ais flow in an enclosed trunk, mount the amplifier in a vertical position, on a
vertical surface.
since the thermal shut-down point for the Amplifier is 185’F(85’c) it is easy to see that it must
be mounted for maximum cooling capability. To achieve maximum advantage of
convection ais 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.
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 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. use extreme caution, inspect underneath surface before drilling.
c. Secure the Amplifier using the screws provided.