Precision Power PCX 440, PCX 480, PCX 4125, PCX 5800 Owners Manual

PrecisionPower 9235 South McKemy Street, Tempe, Arizona 85284 www.precisionpower.com

8900-4007

PCX 440

PCX 480

PCX 4125

PCX 5800

NEW! Advanced Instrumentation Input Stage.
NEW! TC-X Crossover 12dB/Octave; HP/LP/FULL; 30-4kHz Crossover.

Adaptive PWM Power Supply. (PCX 440, PCX 480, PCX 5800)
Fully Regulated PWM Power Supply.(PCX 4125)
Fully Complimentary Triple Darlington Output Stage.

AP-IV Protection Circuitry. (PCX 440, PCX 480, PCX 5800)
AM-V Protection Circuitry. (PCX 4125)

Forced Air Thermal Management.

QBASS™ Bass Boost (PCX 440)
QBASS Plus™ Bass Boost. (PCX 480, PCX 4125, PCX 5800)

High Voltage Input Capability with -12dB Attenuation Switch.
Gold Plated RCAInput and Output Connectors.
PowerLock™ Speaker and Power Wire Connectors.
Mixed Mono/Stereo Operation.
3-Yr Warranty; installed by an Authorized PrecisionPower Dealer.
Designed and Handcrafted in the USA.

Power Bandwidth 10 Hz - 50 kHz
Total Harmonic Distortion > 0.02 %
S/N Ratio < 110dB
Input Topology Instrumentation
Input Sensitivity 150mv - 12 Volts RMS
Input Impedance 10k Ohms
Load Impedance (stereo) 2 - 8 Ohms
Load Impedance (bridged) 4 - 8 Ohms
Supply Voltage 11 - 15 Volts
Damping Factor > 500
Slew Rate > 50 V/µS

QBASS™ Up To +12dB @ 40Hz
QBASS PLUS™ Up To +18dB Boost

@ 30, 36, 44, or 60Hz
Crossovers 12dB/Octave
Crossover Frequency 30-4kHz
Idle Current: PCX 440 2 Amps

PCX 480 2.5 Amps

PCX 4125 3 Amps

PCX 5800 2.5 Amps

MODEL 4ohm STEREO 2ohm STEREO 4ohm MONO

PCX 440 4 X 40 4 X 80 2 X160
PCX 480 4 X 80 4 X 160 2 X 320
PCX 4125 4 X 125 4 X 250 2 X 500
PCX 5800 4 X 50 4 X 100 2 X 200

4ohm MONO 2ohm MONO

5/Ch. 1 X 200 1 X 400

* ALL POWER RATINGS SHOWN ARE TESTED @ 12V; 4 ; 20-20kHz

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1

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 screw
(or nut, bolt,flat washer, star washer) [see detail]
2 - Ring connectors (large enough to accommodate your
method of grounding)
In-line fuse or circuit breaker - see fuse chart below
Power and ground wire - see Power Wire Calculator on page 4
Speaker wire - 12-16 gauge
Grommets (sized to work with the power wire you plan to use
in your installation)
Tube of silicone sealant

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

Maximum Fuse Rating

PCX 440

PCX 480
PCX 4125
PCX 5800

26 3

50 Amp
70 Amp

100 Amp

80 Amp

Before beginning, disconnect the negative (-) terminal of the battery prior to
working on the positive (+) terminal to prevent a short to ground. This is important,
unless you want to spend the rest of your life with a nickname like "Sparky," or
"Smokey." Reconnect the negative terminal only after all connections have been
made.

Warning! A Main Fuse must be installed within 18" of battery!

24 5

Once you have run both the power and ground wires, it's time to connect the
cables to the amplifier. Cut off excess wire and, using wire strippers, strip the ends
of the power and ground cables approximately 1/4 inch. Locate the PowerLock
power and ground connector (supplied). With a small flat bladed screw driver,
loosen the screws before attempting to insert the cables. Insert the wires into the
appropriate hole, and tighten the screws. Once the wires are secure, the

P o w e rL o c k ™ may be plugged into the amplifier. The Power/Ground
P o w e rL o c k ™ will accommodate 6 gauge wire for the PCX 440 and PCX 480,

and 4 gauge wire for the PCX 4125 and PCX 5800.

Power/Ground PowerLock™

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