Planet Audio BB4.150 User Manual
CONTENTS
BB4.150 MOSFET Amplifier User’s Manual - page 1
U S E R ’ S M A N U A L
2 Introduction
2 What is included?
3 Features
3 About 2 Ohm operation
4 General precautions
4 Installation precautions
4 Mounting the amplifier
5 Connecting the amplifier
6 Low level input wiring
7 4CH Power and Speaker wiring
4CH Mode
8 4CH Power and Speaker wiring
Bridged Mode
9 4CH Power and Speaker wiring
TriMode
10 Troubleshooting
11 Specifications
Congratulations on your
purchase of a Planet Audio
BB2 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 Planet
Audio your choice for car audio
entertainment!
page
BB4.150
Four Channel
Digital Audiophile
Car Audio
Power Amplifier
®
BB4.150 MOSFET Amplifier User’s Manual - page 2
Introduction
The Planet Audio BB4.150 is part of
the new lineup of BB2 (”Big Bang
Squared”) amps, all designed in the
USA. In addition to this four channel
MOSFET amplifier, the series includes
high power CLASS D amps.
The BB4.150 features a variable low
pass crossover on each pair of
channels, variable input gain controls
and input sensitivity selectors. They
also incorporate a fixed high pass
crossover for added system flexibility.
For further flexibility in the use of a
subwoofer, 0-+12dB Bass Boost
control has been included on all
amplifiers. You can control the
subwoofer level with the remote level
control module.
Planet Audio understands that
amplifiers are placed in many different
kinds of installations, so we
incorporated a very flexible system of
controls in these amplifiers in order to
help you integrate the amp into your
system regardless of the nature of your
input source.
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.
• BB4.150 amplifier
• Remote subwoofer level control
• Four (4) mounting screws
BB4.150 MOSFET Amplifier User’s Manual - page 3
Features About 2 Ohm operation
Your new BB2 amplifier features the
following:
• Digital audiophile operation
• Bridgeable outputs
• Tri-Mode capable
• MOSFET PWM (Pulse Width
Modulated) Power Supply
• 2 Ohm stable stereo operation
with output power increase
• Thermal and speaker short
protection
• Soft turn-on circuit
• Remote turn-on/turn-off circuit
• Variable input gain control
• Variable low pass crossovers
• Variable high pass crossovers
• Variable 0 to +18dB Bass Boost
• Nickel-plated RCA low level and
high level inputs
• LED power and protection
indicators
• Black anodized heatsink
Your BB2 amplifier has been designed
to operate efficiently at loads down
to 2 Ohms. This means that you can
install four 8 Ohm speakers per
channel, when using parallel wiring.
Increasing the number of woofers per
channel at low frequencies (below
100Hz) produces an acoustic coupling
effect. This acoustic coupling effect
increases your power output by about
3dB per speaker, or the equivalent of
an additional 10W per speaker.
When operating at 2 Ohms, the
amplifiers will increase their output
power by approximately 50%. The
current draw will also increase by
about the same amount, so be sure
you have enough current to run the
amplifiers into a 2 Ohm load.
If you lack adequate current, your
music reproduction will be distorted.
BB4.150 MOSFET Amplifier User’s Manual - page 4
General precautions
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.
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.
Before installing and using your
new Planet Audio amplifier, please
become familiar with all the information contained in this manual.
Please keep this manual in a safe
place for future reference.
• 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.
• 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 wire 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.
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.
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.
Do not flush-mount or recessmount this amplifier. In order to
facilitate cooling, air must be able to
flow in to the bottom panel of the
amplifier. The amplifier is designed
to “hover” above the mounting
surface for this purpose.
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