Precision Power A600/4, A1200/4 Owners Manual

AMPLIFIER MODELS

A600/4 A1200/4

TABLE OF CONTENTS

Congratulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Caution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

CEA Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Fuse Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Amplifier Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Tools/Parts for Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Ground Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Charging System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Current Draw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Power Wire Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Power Lock Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Amplifier Bridging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Mixed Mono Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

A600/4 Front Plate Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

A600/4 End Plate Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

A1200/4 Front Plate Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . .17

A1200/4 End Plate Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

A600/4, A1200/4 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . .21

Advanced Instrumentation Input . . . . . . . . . . . . . . . . . . . . . . . . .22

QBASS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

QBASS/QBASS PLUS Specifications . . . . . . . . . . . . . . . . . . . . .23

QBASS PLUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

TC-X Crossover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Crossover Detent Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Input Combine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

Adjusting Input Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

High Mass Internal Heatsink . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

AP-IV Protection Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

CONGRATULATIONS

Thank you for choosing

Precision Power

audio equipment. Designed and engineered in the USA, this product combines innovativ e technology with the finest materials to consistently deliver

Absolutely State of the Art

™

performance, sound quality, reliability,

and value.This

Precision Power

product reflects our commitment to offer you unparalleled performance and quality for years of dependable service and listening enjoyment.

SERVICE

Do not attempt to service

Precision Power

products yourself. Performing maintenance on your audio equipment will void the warranty. Many par ts of the

Precision Power

product are custom built to our specifications. Our factory parts are not made available to anyone else nor are they for sale. Our goal is to make sure that your

Precision Power

product will alwa ys sound as

good as the day it was purchased. Contact your

Authorized

Precision PowerTMDealer

about obtaining any warranty service

through

Precision Power

. (See the Warranty on the outside of the

back cover).

CAUTION

Extended use of a high powered audio system ma y result in hearing loss or damage. While

Precision Power

systems are capable of “Concert Level” volumes with incredible accuracy, they are also designed for you to enjoy at more reasonable levels all of the sonic subtleties created by musicians. Please observe all local sound ordinances.

FEATURES

Advanced Instrumentation Input Stage

TC-X Crossover

24dB/Octave;HP/LP/FULL; 30-4kHz Crossover

Adaptive PWM Power Supply

AP-IV

Protection Circuity

Fully Complementary Darlington Output Stage

QBASS

Bass Boost

(A600/4)

QBASS Plus

Bass Boost

(A1200/4)

High Voltage Input Capability with -12dB Attenuation Switch Gold Plated RCA Input and Output Connectors

PowerLock

Speaker and Power Wire Connectors

Mixed Mono/Stereo Operation

WHAT’S INCLUDED

Amplifier (with speaker and power plugs mounted) (4) Mounting screws and washers 2mm hex wrench

2.5mm hex wrench 3mm hex wrench

CEA SPECIFICATIONS

AA660000//44 Power Output: 50 Watts RMS x 4 at 4 ohms and <

1% THD+N

Signal to Noise Ratio: -87 dBA (reference 1 Watt into 4 ohms)

Additional Power Output: 80 Watts RMS x 4 at 2 ohm at 14.4 Supply<

1% THD+N

AA11220000//44 Power Output: 110 Watts RMS x 4 at 4 ohms and <

1% THD+N

Signal to Noise Ratio: -94 dBA (reference 1 Watt into 4 ohms)

Additional Power Output: 140 Watts RMS x 4 at 2 ohm at 14.4 Supply<

1% THD+N

SPECIFICATIONS

Nominal Power Ratings

MODEL

4ohm STEREO 2ohm STEREO 4ohm MONO

A600/4 4 X 50 4 X 75 2 X 150 A1200/4 4 X 100 4 X 150 2 X 300

General Specifications

Frequency Response 20Hz - 20kHz Power Bandwidth 10Hz - 50 kHz Total Harmonic Distortion + N <0.05% Input Topology Instrumentation Input Sensitivity 150mV - 12 Volts RMS

(with -12dB pad) Input Impedance 40 kOhms Load Impedance (stereo) 2 - 8 Ohms Load Impedance (bridged) 4 - 8 Ohms Supply Voltage 9 - 16 Volts Damping Factor >150 Slew Rate >20V/µs

QBASS

Up to +18dB @ 40Hz

QBASS PLUS

Up to +18dB Boost

@30, 36, 44, or 60Hz Crossovers 12dB/Octave Crossover Frequency 30-4kHz

Idle Current: A600/4 1.0 Amps

A1200/4 1.8 Amps

Dimensions

Length Width Height

A600/4 21-½” 10-½” 2-¾” A1200/4 24-¾” 10-½” 2-¾”

FUSE REQUIREMENTS

You will need to install an in-line fuse or circuit breaker in the power wire within 18” of the battery.This fuse or circuit breaker is to protect your vehicle from fire in case the power wire shorts to the vehicle body. If you are only using one amplifier, use the fuse rating indicated in this chart. If you are using more than one amplifier, add up the fuse ratings for all the amplifiers. This sum is the rating for your fuse or circuit breaker. You may also want to add a power distribution block near your amplifiers to distribute large gauge power cable to multiple amplifiers.

Amplifier Fuse

A600/4 50A

A1200/4 70A

AMPLIFIER STATUS LEDS

The LEDs provide the following indications:

1. Power - These LEDs illuminates the center Precision Power logo background when the amplifier power is tur ned on.

2. Short - These LEDs behind the PPI logo will flash to indicate a short on the output.

2. Thermal - These LEDs behind the PPI logo will extinguish if the amplifier is in thermal shutdown protection.

Note: Read the AP-IV Protection Circuit section for additional information regarding Short and Thermal protection.

TOOLS/PARTS FOR INSTALLATION

NOTE:TOOLS ARE NOT SUPPLIED.

Small flat blade screwdriver Phillips screwdriver (#2 or medium sized) Wire cutters Wire strippers 4 - #6 round head screws, and 1 - #8 sheet metal scre w .(or nut, bolt, flat washer, star washer) (see details) 2 - Ring connectors (large enough to accommodate your method of grounding) In-line fuse or circuit breaker Power and ground wire Speaker wire - 12-16 gauge Grommets (sized to work with the power wire y ou plan to use in y our installation) Tube of silicone sealant

WIRING

Before beginning, disconnect the negative (-) terminal of the battery prior to connecting the amplifier to the positive (+) 12V terminal to prevent a short to ground and potential damage to wiring and equipment. Some vehicle radios have an anti-theft feature where when the radio is remov ed from 12V the radio will no longer function and must be code reset.

Note: The cables running from the battery to the rear of the car should be installed on the side of the car opposite to the antenna.

When using 16 gauge wire or larger, run the speaker wires from the amplifier location through the vehicle to the front and rear speakers.

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