Boss Audio Systems PH4000D User Manual

Troubleshooting, Specifications, Power connections

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Troubleshooting

PH3000D/PH4000D/PH5000D Amplifier User’s Manual - page 10

Specifications

PH3000D/PH4000D/PH5000D Amplifier User’s Manual - page 11

PH3000D/PH4000D/PH5000D Amplifier User’s Manual - page 6

CONTENTS

U S E R ’ S M A N U A L

PH3000D/PH4000D/PH5000D Amplifier User’s Manual - page 4

PH3000D/PH4000D/PH5000D Amplifier User’s Manual - page 3

PH3000D/PH4000D/PH5000D Amplifier User’s Manual - page 8

PH3000D/PH4000D/PH5000D Amplifier User’s Manual - page 5

PH3000D/PH4000D/PH5000D Amplifier User’s Manual - page 7

PH3000D/PH4000D/PH5000D Amplifier User’s Manual - page 9

PH3000D/PH4000D/PH5000D Amplifier User’s Manual - page 2

Introduction

Important installation
considerations for using
this amplifier.

Notes

Notes

Notes

If you experience operation or performance problems with this product, compare your
installation with the electrical wiring diagram on the previous pages. If problems persist,
read the following troubleshooting tips which may help eliminate the problems.

Low-level (RCA) input wiring is preferred for best audio performance. Always use
a high-quality RCA cable for best audio performance.

Protection LED
comes on when
amplifier is
powered up.

Check for short circuits on speaker leads.

Turn down the volume control on the head unit to prevent overdriving.

Remove speaker leads, and reset the amplifier. If the Protection LED still
comes on, then the amplifier is faulty and needs servicing.

High hiss in the
speakers.

Disconnect all RCA inputs to the amplifiers. If the hiss disappears, then
plug in the component driving the amplifier and unplug its inputs. If the
hiss disappears at this point, go on until the faulty/noisy component is
found.
It is best to set the amplifier's input level control as low as possible. The
best subjective signal-to-noise ratio is achieved in this manner. Try to set
the head unit as high as possible (without distortion) and the amp input
level as low as possible.

Squealing noise
from speakers.

Check for improperly grounded RCA interconnects.

Distorted sound.

Check that the Input Level Control is set to match the signal level of the
head unit. Always try to set the Input Level as low as possible.

Check that all crossover frequencies are properly set.

Check for short circuits on the speaker leads.

Amplifier gets
very hot.

Check that the minimum speaker impedance for the amp model is correct.

Check that there is good air circulation around the amp. In some
applications, it may be necessary to add and external cooling fan.

Engine noise
(static type)

This is usually caused by poor quality RCA cables,which can pick up
radiated noise. Use only the best quality cables, and route them away
from power cables.

Engine noise
(alternator
whine)

Check that speaker leads are not shorted to the vehicle chassis.

Check that the RCA grounds are not shorted to the vehicle chassis.

Check that the head unit is properly grounded.

The fuse ratings for these amps is:

PH3000D: 50A (25A x 2)
PH4000D: 105A (35A x 3)
PH5000D: 140A (35A x 4)

Although sufficient for normal working
conditions, overloading the amp may
result in blown fuses. Please try to
avoid overloading the amp in this
manner.

Your PHANTOM Class D am-
plifier is designed to run with
a minimum load of 1 Ohm.

Operating the PH3000D,
PH4000D or PH5000D with a
speaker impedance load be-
low 1 Ohm may result in poor
sound quality and damage to
the amplifier circuitry. Such
damage is not covered under
the warranty for this product.

Bridging Two PH5000D, PH4000D or PH3000D Amplifiers

MASTER
AMPLIFIER

Front panel

SLAVE

AMPLIFIER

Front Panel

Power Connections

Without Stiffening Capacitor

With Stiffening
Capacitor

Bridging Two PH5000D, PH4000D or PH3000D Amplifiers

SLAVE

AMPLIFIER
Rear Panel

FRONT PANEL CONNECTIONS

REAR PANEL CONNECTIONS

• If there is smoke or any peculiar odor
present during use or if there is damage
to any of the component enclosures,
immediately unplug the power cord
and send the amplifier to your local
dealer or service center as soon as
possible .

3. Mark the location for the mounting
hole screws by positioning the amplifier
where you wish to install it. Use a scribe
or mounting screw, inserted through
each of the amp's mounting holes, to
mark the mounting surface. If the
mounting surface is carpeted, measure
the hole centers and mark with a felt
tip pen.

4. Drill pilot holes in the mounting
surface for the mounting screws. Place
the amplifier in position, and attach
the amplifier to the mounting surface
securely using screws.

4. Check that the fuse holder is empty.
Then connect the fuse holder to the
"BATT+" connection on the amplifier.

5. If multiple amplifiers are being used
in your system, either:

• Run a separate pair of cables from
the battery and a chassis ground point
to each amplifier. Each (+) cable must
have its own inline fuse.

-or-

• Run a #0 cable from the fuse holder
at the battery to a distribution block
at or near the amplifier's location. Then
run separate cables from the amplifier
to this distribution block and to
independent chassis ground points.

6. Connect all line inputs and outputs
(if used) using high-quality cables.
Connect all speakers, following the
diagrams in this manual. Be sure to
observe proper polarity to avoid audio
phase problems.

7. Insert fuse(s) into the battery fuse
holder(s).

8. Recheck all connections before
powering up the amplifier.

9. Set all level controls to minimum
position, and set all crossover
controls/switches to the desired
frequency points.

10. Power up the head unit and the
amplifier. Then set the volume control
on the head unit to about 3/4 volume,
and adjust the amplifier’s input level
control(s) to just below the level of
distortion.

11. Further fine tuning of the various
controls may be necessary to obtain
best results.

Speaker Connections

MASTER

AMPLIFIER
Rear panel

SUBWOOFER

Speaker

2

Introduction

2

Features

3

What is included?

3

General precautions

3

Installation precautions

3

Mounting the amplifier

4

Connecting the amplifier

5

Important system considerations

5

Tips for a safe system

6

Low level input wiring

6

Speaker wiring

7

Power connections

Normal and with Stiffening Capacitor

8

Bridging two PHANTOM

CLASS D Amplifiers

10 Troubleshooting

11 Specifications

Congratulations on your
purchase of a

PHANTOM Class D Amplifier.

It has been designed, engineered
and manufactured to bring you

the highest level of performance
and quality, and will afford you
years of listening pleasure.

Thank you for making
your choice for car audio
entertainment!

1600W x 1

3000W x 1

4000W x 1

1 Ohm Mono

10k Ohm

Selectable 100mV-2V or 2V-8V

50Hz-150Hz

100dB

50Hz-150Hz

15Hz-40Hz

Variable 0 -+18dB

Selectable 0/180º

35A x 3

15" (381mm)

All specifications subject to

change without notice.

RMS POWER

into 4 Ohms

MAX POWER

into 2 Ohms

MAX POWER

into 1 Ohm

Min. speaker
impedance

Input
impedance

Input
sensitivity

Frequency response

Signal-to-noise ratio

Crossover/filter range

low pass

subsonic

Bass Boost

Phase Shift

Fuse rating

Dimensions:

9

-1/2

" x 2

-1/4

" x ...

(241mm x 57.2mm x...)

1800W x 1

3500W x 1

5000W x 1

1 Ohm Mono

10k Ohm

Selectable 100mV-2V or 2V-8V

40Hz-150Hz

100dB

50Hz-150Hz

15Hz-40Hz

Variable 0 -+18dB

Selectable 0/180º

35A x 4

18" (457mm)

MODEL

page

PH5000D
PH4000D
PH3000D

CLASS D MonoBlock
Car Audio Amplifiers

CLASS D MonoBlock Car Audio Amplifiers

1200W x 1

2200W x 1

3000W x 1

1 Ohm Mono

10k Ohm

Selectable 100mV-2V or 2V-8V

50Hz-150Hz

100dB

50Hz-150Hz

15Hz-40Hz

Variable 0 -+18dB

Selectable 0/180º

25A x 2

13" (330mm)

PH5000D

SYMPTOM

POSSIBLE REMEDY

PH3000D/PH4000D/PH5000D Amplifier User’s Manual - page 1

PH3000D/PH4000D/PH5000D

AMP MODE

SWITCH IN SLAVE

POSITION

AMP MODE

SWITCH IN MASTER

POSITION

To Audio Outputs of head

unit or Subwoofer outputs

of a signal processor

To Audio Inputs of
satellite amplifier
(if present)

To Audio Outputs of head

unit or Subwoofer outputs

of a signal processor

Chassis

ground

point

FUSE

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