Boss Audio Systems PH2KD.4 audio amplifier Manual


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Boss Audio Systems PH2KD.4 audio amplifier Manual | Manualzz
User’s Manual
CLASS D MONOBLOCK
CAR AUDIO AMPLIFIER
CLASS D 4 CHANNEL
CAR AUDIO AMPLIFIER
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ira AUDIO SYSTEMS
es XX @ € BOSS Audio Systems * 3451 Lunar Court Oxnard, CA 93030 AU Г) | О SYSTE M S
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"tech support: www.bossaudio.com/support 800.999.1236
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AUDIO SYSTEMS
CLASS D MonoBlock
Car Audio Amplifier
PH 2KD.4 CLASS D 4 Channel
Car Audio Amplifier
PH3KD
Congratulations on your
purchase of a 3085
AUDIO SYSTEMS
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 308$
AUDIO SYSTEMS
your choice for car audio
entertainment!
USER’S MANUAL
page CONTENTS
2 Introduction
Features
What is included?
General precautions
Installation precautions
Mounting the amplifier
Connecting the amplifier
Important system considerations
Tips for a safe system
oO a a BV O 0 © ю
Low level input wiring
mi
High level input wiring
8 Speaker wiring
11 Power connections
Normal and with Stiffening Capacitor
13 Troubleshooting
14 Specifications
PH3KD/PH2KD.4 Amplifier User's Manual - page 1
Specifications
CLASS D MonoBlock
CLASS D 4 Channel
Car Audio Amplifier Car Audio Amplifier
MODEL PHSKD PH2KD.4
RMS POWER 1500W X 1 200W x 4
into 4 Ohms
RMS POWER 2100W x 1 n/a
into 2 Ohms
MAX POWER 3000W x 1 500W x 4
into 2 Ohms
MAX BRIDGED POWER n/a 1000W x 2
into 4 Ohms
Min. speaker 2 Ohm Mono
impedance
Input 10k Ohm
impedance
Frequency response 10Hz-1KHz 9Hz-50kHz
Signal-to-noise ratio 105dB 105dB
Crossover/filter range
low pass 30Hz-1kHz 50Hz-500Hz
high pass n/a 50Hz-500Hz
subsonic 10Hz-45Hz n/a
Bass Boost Variable 0 -+18dB Variable 0 -+12dB
Treble Boost n/a Variable 0 -+12dB
Phase Shift Variable 0-180° n/a
Fuse rating 40A 40A
Dimensions: 8-3/4” x 5-1/8” x 1-3/4” 9-3/32” x 5-1/8" x 1-3/4”
(221x130x45mm) (231x130x45mm)
All specifications subject to
change without notice.
PHSKD/PH2KD.4 Amplifier User's Manual - page 14
Troubleshooting
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.
SYMPTOM
Amplifier will not
power up.
POSSIBLE REMEDY
Check to make sure you have a good ground connection.
Check that the Remote Input (Turn-On) has at least 3VDC.
Check that there is battery power on the (+) terminal.
Check that there is at least 12v.
Check all fuses, replace if necessary.
Make sure that the Protection LED is not illuminated. If it is lit, shut off
the amplifier briefly, and then repower it.
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.
No output.
Check that all fuses are OK.
Check that amplifier is properly grounded.
Check that the Remote Input (Turn-On) has at least 3VDC.
Check that the RCA audio cables are plugged into the proper inputs.
Check all speaker wiring.
Low output.
Reset the Level Control.
Check the Crossover Control settings.
Audio present in
only one channel.
Check the RCA interconnect cables.
Check all speaker wiring.
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.
PHSKD/PH2KD.4 Amplifier User’s Manual - page 13
Introduction
With the 3988 PHANTOM Compact
Class D series, we are introducing
one monoblock and one 4 channel
CLASS D amplifier. Both are designed
in the USA.
The monoblock model PH3KD
PHANTOM models features variable
low pass and subsonic filters and a
variable input gain control. These
amplifiers also incorporate a phase
selector switch to help compensate
for time delays in subwoofer
applications.
The 4 channel model PH2KD.4
features variable low pass and high
pass filters and a variable input gain
control.
For further flexibility in the use of a
subwoofer, a variable 0-+18dB Bass
Boost control has been included in
the PHSKD, and the PH2KD.4
features 0-to+12dB Bass Boost and
Treble Boost controls. Both models
allow you to control the subwoofer
level with the remote level control
module.
PHSKD/PH2KD.4 Amplifier User's Manual - page 2
Features
Your new PHANTOM amplifier features
the following:
* Class D operation
* MOSFET PWM (Pulse Width
Modulated) Power Supply
* Thermal, overload and speaker
short protection
* Soft turn-on circuit
* Remote turn-on/turn-off circuit
* Variable input gain control
* Nickel-plated RCA low level inputs
* Nickel-plated speaker and power terminals
* LED power and protection indicators
* Black anodized heatsink
* Remote subwoofer level control
PH3KD only:
Variable subsonic filter:
10-45Hz ,12dB/octave
* Variable low pass filter:
30-1kHz,12dB/octave
* Variable 0-+18dB Bass Boost
e 0-180° Phase Shift control
PH2KD.4 only:
e Variable high pass filter:
50-500 Hz,12dB/octave
e Variable high pass filter:
50-500 Hz,12dB/octave
e Variable 0-+12dB Bass Boost
* Variable 0-+12dB Treble Boost
What is included?
When first unpacking your new
amplifier, please check first that the
package contains all of the items
below. If something is missing, contact
the store where you purchased the
amplifier.
e Class D amplifier
e Remote subwoofer level control
e Remote subwoofer control cable
e Four (4) mounting screws
General precautions
Before installing and using your new
BOSS amplifier, please become fa-
miliar with all the information con-
tained in this manual.
Please keep this manual in a safe
place for future reference.
e Do not open or attempt to repair this
unit yourself. Dangerous high voltages
are present which may result in electric
shock. Refer any repairs to a qualified
service technician.
* To avoid risk of electronic shock or
damage to the amplifier, do not permit
any of this equipment to become damp
or wet from water or drinks. If this does
occur, immediately unplug the power
wires and send the amplifier to your
local dealer or service center as soon
as possible.
* |f 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 .
Installation precautions
Before you drill or cut any holes,
investigate your car's layout very
carefully. Take special care when you
work near the gas tank, fuel lines,
hydraulic lines and electrical wiring.
Never operate the amplifier when it is
unmounted. Attach all audio system
components securely to prevent
damage, especially in an accident.
Before making or breaking power
connections in your system, disconnect
the vehicle battery. Confirm that your
head unit or other equipment is turned
off while connecting the input jacks and
speaker terminals.
If you need to replace the power fuse,
replace it only with a fuse identical to
that supplied with the amplifier. Using
a fuse of a different type or rating may
result in damage to your audio system
or your amplifier which is not covered
by the manufacturer's warranty.
Mounting the amplifier
1. Find a suitable location in the vehicle
in which to mount the amplifier.
2. Make sure there is sufficient air
circulation around the intended
mounting location.
PH3KD/PH2KD.4 Amplifier User’s Manual - page 3
Power Connections
4-Channel Amplifier
PH2KD.4
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PH3KD/PH2KD.4 Amplifier User’s Manual - page 12
— ©
Distribution
Block
ШИ
Chassis
ground
point
Chassis
ground
point
— to REMOTE
TURN-ON
terminal of
head unit
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Stiffening
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Power Connections
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PHSKD/PH2KD.4 Amplifier User's Manual - page 11
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.
Connecting the amplifier
Before doing any wiring, look through
this manual and identify the diagrams
to follow for power, input and speaker
connections for your particular
installation. Be sure you understand
all the connections before you proceed.
1. Connect the amplifier's power
ground terminal to the closest point
on the chassis of the car. Keep this
ground wire to less than 39" (100 cm)
in length. Use 4 gauge (or heavier)
wire.
2. Connect the remote terminal to the
remote output of the head unit using
16 gauge (or heavier) wire.
3. Connect an empty fuse holder within
18" (45 cm) of the car battery, and run
4 gauge (or heavier) cable from this
fuse to the amplifier location.
The purpose of placing a fuse in this
location is to protect your vehicle’s
battery in the event that this wire
accidentally touches the chassis
ground on its run to the amplifier.
PH3KD/PH2KD.4 Amplifier User’s Manual - page 4
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-
e 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.
Important installation
considerations for using
this amplifier.
Your PHANTOM Class D am-
plifier is designed to run with
a minimum load of 2 Ohms.
Operating the PH3KD or
PH2KD.4 with a speaker im-
pedance load below 2 Ohms
may result in poor sound qual-
ity and damage to the amplifier
circuitry. Such damage is not
covered under the warranty
for this product.
The fuse ratings for these amps is:
PH3KD: 40A
PH2KD.4: 40A
Although sufficient for normal working
conditions, overloading the amp may
result in blown fuses. Please try to
avoid overloading the amp in this
manner.
Don't misuse the
level control!
Do not mistake the input level control
for a volume control! It is designed
ONLY to match the output level of
your audio source to the input level
of your amplifier.
Do not adjust this input level to
maximum unless your input level
requires it.
Ignoring these instructions will result
in an input overload to the amplifier,
and excessive audio distortion. It
can also cause the protection circuit
to engage.
Tips for making your system
as safe as possible
When making electrical connections
to the amplifier, please observe the
following:
e Always use 4GA or heavier wire for
power and ground connections.
e Wire the amplifier directly to the car
battery. Make sure there is circuit
protection (such as a fuse) on the
positive power lead within 18” of the
battery.
* When making a ground connection,
always use the shortest possible wire
to a good chassis ground point.
e Wire the remote turn-on connection
to the remote turn-on lead of your EQ
or head unit. In some cases, this may
be the power antenna lead of the head
unit.
e Fuses protect BOTH the amplifier
and the electrical system of your
vehicle from faulty conditions. If you
must replace a fuse on the amplifier,
you must use a fuse of exactly the
same type and rating. À different type
of fuse or rating may result in damage
or cause a fire.
SHOCK HAZARD! Do not open the case
of this product. There are dangerous
voltages present within the unit. There are
no user-serviceable parts within the unit.
PH3KD/PH2KD.4 Amplifier User’s Manual - page 5
Speaker Connections
4-Channel Amplifier
PH2KD.4
Tri Mode
Tri-mode operation allows you to connect this amplifier to a pair of main speakers
plus a subwoofer on one pair of output channels. The main speakers will operate
in STEREO while the subwoofer simultaneously operates in MONO.
To set up the amplifier to run in this mode, put the crossover switches in the FULL
position. Insert high pass filter
capacitors and a low pass filter (SPEAKER
inductor into the wiring as 8 OHMS RIGHT
shown below. Be sure to check N 7 Subwoofer
the table at the bottom of this ( HI E в
раде to determine the correct crossover
capacitor and inductor values
CH3
Speaker
for the crossover frequency you | | MINIMUM
| High pass filter SPEAKER
wish to achieve. Crossover IMPEDANCE
4 OHMS
CH4
Speaker
Low pass (=
filter inductor
| 7
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Component values for
6dB Passive Crossover
i ————]—
FREQUENCY INDUCTOR CAPACITOR ÓN
80 Hz 7.5mH 470uF
100 Hz 6.5mH 330uF CH2
120 Hz 5.5mH 330uF Speaker
150 Hz 4mH 220uF MINIMUM
High pass filter SPEAKER
crossover IMPEDANCE
CH1 4 OHMS
Speaker
High pass filter
crossover
Low pass
filter inductor |
SPEAKER Subwoofer
IMPEDANCE
8 OHMS
PHSKD/PH2KD.4 Amplifier User’s Manual - page 10
Speaker Connections
Low-level (RCA) input wiring is preferred for best audio performance. Always use
a high-quality RCA cable for best audio performance.
SPEAKER
IMPEDANCE cq
2-8 OHMS Speaker Ll ~
en CH3
4-Channel Amplifier Speaker
PH2KD.4
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F
SPEAKER
Mode IMPEDANCE SH!
peaker
2-8 OHMS
J
CH2
Speaker ”
Connect the Negative (-) terminal of the RIGHT
subwoofer to the CH2 (-) amplifier terminal.
Connect the Positive (+) terminal of the RIGHT
subwoofer to the CH1 (+) amplifier terminal.
RIGHT
4-Channel Amplifier Subwoofer SPEAKER
PH2KD.4 "43 OHMS
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SPEAKER
Connect the Negative (-) terminal of IMPEDANCE
the LEFT subwoofer to the CH4 (-) 4-8 OHMS
amplifier terminal. LEFT +
Subwoofer
Connect the Positive (+) terminal of
the LEFT subwoofer to the CH3 (+)
amplifier terminal.
PH3KD/PH2KD.4 Amplifier User’s Manual - page 9
Low Level Input Wiring
Low-level (RCA) input wiring is preferred for best audio performance. Always use
a high-quality RCA cable for best audio performance.
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PHSKD/PH2KD.4 Amplifier User's Manual - page 6
High Level Input Wiring
The high level input(s) should only be used when your head unit lacks RCA outputs.
If the RCA outputs are not present, connect the speaker outputs from the receiver
to the high level input connector of the amplifier. Be sure to observe polarity to
avoid audio phase problems.
NOTE: Do not connect BOTH the high level and low level inputs from your
receiver to your amplifier at the same time!
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PH3KD/PH2KD.4 Amplifier User’s Manual - page 7
Speaker Connections
Low-level (RCA) input wiring is preferred for best audio performance. Always use
a high-quality RCA cable for best audio performance.
MonoBlock Amplifier
PH3KD
45Hz 1KHz +18dB
FUSE +12V reMorE GND "3 PROTECT a я
5 ©, Lo 000 © © к == ©
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REMOTE SUBWOOFER CONTROL | FILTER FREQUENCY BOOST LEVEL
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3085 CLASS D MONOBLOCK POWER AMPLIFIER
SPEAKER —
IMPEDANCE
2-8 OHMS
SUBWOOFER
Speaker
PH3KD/PH2KD.4 Amplifier User’s Manual - page 8

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Frequently Answers and Questions

What is the maximum power output of PH2KD.4 amplifier into 4 Ohms?
500 Watts x 4 channels.
What is the input impedance of PH2KD.4 amplifier?
10k Ohms.
What is the crossover frequency range of high pass filter?
50Hz to 500Hz.
What is the bass boost range of PH2KD.4 amplifier?
0 to +12dB.
What is the maximum bridged power output of PH2KD.4 amplifier into 4 Ohms?
1000 Watts x 2 channels.
What is the minimum speaker impedance for PH2KD.4 amplifier?
2 Ohms.

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