Power Acoustik Power PA2-120, Power PA2-240 Owner's Manual

Owner's manual

Amplifier provide high-performance sound reinforcement for you mobile audio equipment.
it's versatility enables compatibility with optional Equalizers, Frequency Dividing Network
Crossovers, and other audio processors in a customized system. The Multi-Mode bridging
capabilities allow flexibility in hosting several different speaker configurations.

To achieve optimum performance, it is highly recommended that you read this Owners

-'

Manual defore beginning installation.

2

OHM STABLE OPERATION FOR MAXIMUM EFFICIENCY
STATE-OF-THE-ART HEAT SINK FOR SUFFICIENT POWER DlSSiPATlON
GOLD PLATED LOW LEVEL INPUTS AND SCREW TERMINAL

CONNECTIONS FOR POWER, GROUND AND SENSING
FLOATING GROUND INPUTS
INPUT SENSlTiVllY CONTROL FOR PERFECT MATCH WlTH CAR STEREO
REMOTE TURN-ON

WlTH LED INDICATOR
VARIABLE LINE LEVEL INPUT ADJUSTMENT
SOFT TURN-ON CIRCUIT
CIRCUIT OVERLOAD PROTECTION

w

WARNING

High powered audio systems in a vehicle are capable of generating "Live Concert" high
levels of sound pressure. Continued exposure to excessively high volume sound levels may
cause hearing loss or damage. Also, operation of a moter vehicle whiie listening to audio
equipment at high volume levels may impair your ability to hear external sounds such as;
horns, warning signals, or emergency

vehlcles. thus constituting to a potential traffic hazard.

In the interest of safety, Consumer Electronics recommends listening

at

lower volume levels

whiie driving.

Before beginning the installation, consider the following:
a. If you plan to expand your system by adding other components sometime 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.

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.

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 llmpedance (This information
as

normally printed on the speaker magnet).

d. Consider both the length of your leads, and routing when determining the mountlng

location. Pre-Amp input Jacks requir a length of high quality shielded male to male RCA
patch cord.

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 dlssipation, 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 smaii 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 Ampiifier 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.

'

a. Select a suitable location that is convenient for mounting, is accessible for wiring, and

.4

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.

A. CONNECTING THE POWER (Fig. 1)

CAUTION:

AS

A

PRECAUTION. IT IS

ADVISABLE

TO

DISCONNECT

THE

VEHICLE'S

BATERY

BEFORE

MAKING CONNECTION

TO

THE

+I2

VOLTS

SUPPLY

WIRING.

Y

418

GAUGEOhicker if planning for additional Amplifiers) wire is recommended both the
power and ground wires. 12 Gauge, for the remote ture-on wire. Both types are
available at most Mobile Audio Dealers or

Installation Shops.

(I) GROUND: To Vehicle Chassis

To avoid unwanted ignition noise caused by ground loops, it is essential that the
Amplifier be grounded to a clean, bare, metal surface of the vehicles chassis.

NOTE:

GROUND

WIRE

SHOULD

NOT

BE

EXTENDED

MORE

THAN

3

FT.(l

METER).

(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.

(3)

Remote Turn-One Input : To Power Antenna output of Car Stereo

This Amplifier is turned "0N"remotely when the vehicle's stereo is turned 'ON"

NOTE:
IF

YOUR

RADIO

DOES NOT

HAVE

+I2

VOLT

OUTPUT

LEAD

WHEN

ME

RADIO

IS

TURNED

ON.

THE

'REM'

TERMINAL

ON

THE

AMPLIFIER

CAN

BE

CONNECTED

TO

VEHICLE'S

ACCESSORY

CIRCUIT

THAT

IS

LIVE

WHEN

THE

KEY

IS

'ON-.