JL Audio 300 Bedienungsanleitung
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OWNER’S MANUAL
300 W CLASS-A/B FOUR-CHANNEL FULL-RANGE AMPLIFIER
300/4v3
Thank you for purchasing a JLAudio amplifier
for your automotive sound system.
Your amplifier has been designed and manufactured to exacting
standards in order to ensure years of musical enjoyment in your
vehicle. For maximum performance and extended warranty
coverage, we highly recommend that you have your new amplifier
installed by an authorized JLAudio dealer. Your authorized
dealer has the training, expertise and installation equipment
to ensure optimum performance from this product. Should you
decide to install the amplifier yourself, please take the time
to read this manual thoroughly so as to familiarize yourself
with its installation requirements and setup procedures.
If you have any questions regarding the instructions in this
manual or any aspect of your amplifier’s operation, please
contact your authorized JLAudio dealer for assistance. If you
need further assistance, please call the JLAudio Technical
Support Department at (954) 443-1100 during business hours.
2 | JL Audio - 300/4v3 Owner’s Manual 3
Cooling Efficiency Considerations:
Your JL Audio amplifier employs an
advanced type of heat management, called
RealSink™. This feature takes advantage of
convection and radiation effects to remove
heat from the amplifier circuitry. For optimum
cooling performance, the vertical heat sinks
located at the back of the amplifier should be
exposed to as large a volume of air as possible.
Enclosing the amplifier in a small, poorly
ventilated chamber can lead to excessive heat
build-up and degraded performance. If an
installation calls for an enclosure around the
amplifier, we recommend that this enclosure
be ventilated with the aid of a fan. In normal
applications, fan-cooling is not necessary, but
you still need to follow some basic guidelines:
• Amplifier mounted vertically with heat sink fins
pointing up: Optimum
• Amplifier mounted horizontally,
right side up: Good
• Amplifier mounted horizontally, but upside
down: Fair (not recommended if there is
less than 1 inch (2.5 cm) clearance above the
amplifier heat sinks)
• Amplifier mounted vertically with heat sink fins
pointing laterally: Fair
• Amplifier mounted vertically with heat sink fins
pointing down: Poor (not recommended)
If mounting the amplifier under a seat,
make sure there is at least 1 inch (2.5 cm) of
space above the amplifier’s outer shell to permit
proper cooling.
Safety Considerations:
Your amplifier needs to be installed in a dry,
well-ventilated environment and in a manner
which does not interfere with your vehicle’s safety
equipment (air bags, seat belt systems, ABS brake
systems, etc.). You should also take the time to
securely mount the amplifier using appropriate
hardware so that it does not come loose in the
event of a collision or a sudden jolt to the vehicle.
Stupid Mistakes to Avoid:
• Check before drilling any holes in your
vehicle to make sure that you will not be
drilling through a gas tank, brake line, wiring
harness or other vital vehicle system.
• Do not run system wiring outside or underneath
the vehicle. This is an extremely dangerous
practice which can result in severe damage to
your vehicle and person.
• Protect all system wires from sharp metal
edges and wear by carefully routing them,
tying them down and using grommets and
loom where appropriate.
• Do not mount the amplifier in the engine
compartment, under the vehicle, on the roof
or in any other area that will expose the
amplifier circuitry to the elements.
PROTECT YOUR HEARING!
We value you as a long-term customer. For
that reason, we urge you to practice restraint in
the operation of this product so as not to damage
your hearing and that of others in your vehicle.
Studies have shown that continuous exposure to
high sound pressure levels can lead to permanent
(irreparable) hearing loss. This and all other
high-power amplifiers are capable of producing
such high sound pressure levels when connected
to a speaker system. Please limit your continuous
exposure to high volume levels.
While driving, operate your audio system in
a manner that still allows you to hear necessary
noises to operate your vehicle safely (horns,
sirens, etc.).
SERIAL NUMBER
In the event that your amplifier requires
service or is ever stolen, you will need to
have a record of the product’s serial number.
Please take the time to enter that number in
the space provided below. The serial number
can be found on the bottom panel of the
amplifier and on the amplifier packaging.
Serial Number:
INSTALLATION APPLICATIONS
This amplifier is designed for operation in
vehicles with 12V, negative-ground electrical
systems. Use of this product in vehicles with
positive ground and/or voltages other than 12V
may result in damage to the product and will void
the warranty.
This product is not certified or approved for
use in aircraft.
Do not attempt to “bridge” the outputs of this
amplifier with the outputs of a second amplifier,
including an identical one.
PLANNING YOUR INSTALLATION
It is important that you take the time to read
this manual and that you plan out your
installation carefully. The following are some
considerations that you must take into account
when planning your installation.
Front Channel
Input Voltage
Range Selector
(pg. 6)
Front Channel
Filter Slope
Selection
(pg. 8)
Front Channel
Filter Frequency
Range Selector
(pg. 8)
Front Channel
Left and Right
Input Jacks
(pg. 6)
Rear Channel
Left and Right
Input Jacks
(pg. 6)
Front Channel
Input Mode
Selector
(pg. 6)
Remote Turn-On
Connector
(pg. 6)
Chassis Ground
Connector
(pg. 6)
+12 V Power
Connector
(pg. 5)
Front Channel
Speaker Outputs
(pg. 8)
Rear Channel
Input Voltage
Range Selector
(pg. 6)
Rear Channel
Filter Slope
Selection
(pg. 8)
Rear Channel
Filter Frequency
Range Selector
(pg. 8)
Rear Channel
Input Sensitivity
Control
(pg. 7)
Rear Channel
Speaker Outputs
(pg. 8)
Front Channel
Filter Cuto
Frequency Selector
(pg. 8)
Front Channel
Filter Mode
Selector
(pg. 7)
Rear Channel
Filter Mode
Selector
(pg. 7)
Rear Channel
Filter Cuto
Frequency Selector
(pg. 8)
Front Channel
Input Sensitivity
Control
(pg. 7)
Bridged
Left Right
+12VDC Ground Remote Front Filter Controls Front Input Section Front Speaker Outputs
Bridged
Left Right
Rear Speaker Outputs
Left Ch. Right Ch.Filter Freq. (Hz)
Filter Slope
Freq. Range Input Voltage Input Sens. Input Mode
12dB | 24dB
Filter Mode
Off | LP | HP
x1 | x10 Low | High
Rear Input Section
Left Ch. Right Ch.
Input Voltage Input Sens.
Low | High 2ch | 4ch
50
60
75
95
130
200
500
30 0 /4v3
Four-Channel Full-Range Amplifier
Rear Filter Controls
Filter Freq. (Hz)
Filter SlopeFreq. Range
12dB | 24dB
Filter Mode
Off | LP | HP
x1 | x10
50
60
75
95
130
200
500
4 | JL Audio - 300/4v3 Owner’s Manual 5
14) Make necessary adjustments to the input
sensitivity controls to obtain the right
overall output and the desired balance
in the system. See Appendix C (pages 16, 17)
for the recommended input sensitivity
setting method.
15) Enjoy the fruits of your labor with your
favorite music.
POWER CONNECTIONS
Before installing the amplifier,
disconnect the negative (ground) wire
from the vehicle’s battery. This will prevent
accidental damage to the system, the vehicle
and your person during installation.
Bridged
Left Right
+12VDC Ground Remote
Front Filter Controls Front Input Section Front Speaker Outputs
Bridged
Left Right
Rear Speaker Outputs
Left Ch. Right Ch.Filter Freq. (Hz)
Filter Slope
Freq. Range Input Voltage Input Sens. Input Mode
12dB | 24dB
Filter Mode
Off | LP | HP
x1 | x10 Low | High
Rear Input Section
Left Ch. Right Ch.
Input Voltage Input Sens.
Low | High 2ch | 4ch
50
60
75
95
130
200
500
30 0 /4v3
Four-Channel Full-Range Amplifier
Rear Filter Controls
Filter Freq. (Hz)
Filter SlopeFreq. Range
12dB | 24dB
Filter Mode
Off | LP | HP
x1 | x10
50
60
75
95
130
200
500
+12V Battery Connection
You will need to connect a power wire to
the vehicle’s positive battery terminal, using an
appropriate power ring or specialized battery
terminal connector, such as the JLAudio
XB-BTU or XD-BTS. This connection must
be tight and corrosion-free to ensure proper
connectivity. This wire MUST be fused
appropriately for safety. Any power wires run
through metal barriers (such as firewalls), must
be protected with a high quality insulating
grommet to prevent damage to the insulation
of the wire. Failure to do so may result in a
dangerous short circuit.
Power Wire Requirements
The 300/4v3’s “+12 VDC” and “Ground”
connections are designed to accept 4 AWG power
wire. 4 AWG pure copper wire is recommended
for any power wire run longer than 72 inches (180
cm). For runs shorter than 72 inches, 8 AWG pure
copper power wire is acceptable.
If you are installing the 300/4v3 with other
amplifiers and wish to use a single main power
wire, use 2 AWG or 1/0 AWG pure copper
wire as a main power wire. This 2 AWG or
1/0 AWG power wire should terminate into a
fused distribution block mounted as close to
the amplifiers as possible and should connect to
the 300/4v3 with 4 AWG or 8 AWG pure copper
power wire.
Please note that lower AWG numbers mean
bigger wire and vice-versa (1/0 AWG is the largest,
2 AWG is smaller, then 4 AWG, then 8 AWG, etc.).
IMPORTANT
!
We do not recommend the use of “copper-
clad aluminum wire” or “CCA” wire because
this wire is significantly less conductive than
pure copper wire. Only use pure copper power
wire, such as JLAudio’s Premium Power Wire.
Tinned copper wire (silver color) is acceptable as
the tin-plating is only a very minor component
of the wire.
Fuse Requirements
The installation of a fuse on the main
power wire, within 18 wire inches (45 cm)
of the positive battery terminal is vital to
protect the wire and the vehicle from fire in
the event of a collision or short-circuit. The
fuse value at each power wire should be just
high enough for all of the equipment being run
from that power wire. Do not use a fuse with
a value that far exceeds the total fuse rating
of the electronics connected to the wire.
If only the 300/4v3 is being run from that
power wire, we recommend a 40A fuse be
used. AGU (big glass fuse) or MaxiFuse™ (big
plastic-body fuse) types are recommended.
If other amplifiers are also being powered from
a main power wire and exceed 80 amps in total
fuse rating, we recommend the use of an ANL
(large-blade) fuse and holder at the battery plus
a fused distribution block near the amplifiers.
Each amplifier must be fused independently at the
outputs of the fused power distribution block. We
recommend appropriately rated MaxiFuse™ fuses
and a JLAudio fused distribution block.
Please consult with your JLAudio
dealer to make sure that the wire, fuse
holder and fuse ratings are appropriate for
your system’s needs. The safety of your
installation depends on appropriate power
connections and fuse protection.
PRODUCT DESCRIPTION
The JLAudio 300/4v3 is a four-channel full-
range amplifier utilizing patented Absolute
Symmetry™ Class A/B technology for all
channels. All channels benefit from JLAudio’s
exclusive R.I.P.S. power supply design which
optimizes the output of each channel pair for any
impedance between 1.5 and 4 ohms per channel.
The 300/4v3 can be operated in the
following modes:
1) As a full-system amplifier in bi-amp mode with
one pair of channels driving subwoofers in low-
pass mode (75W x 2 or 150W x 1) and the other
pair of channels driving main speakers in high-
pass mode (75W x 2).
2) As a four-channel satellite amplifier in a
bi-amplified system, delivering high-passed
signals to front and rear speaker systems.
The 300/4v3’s flexible input and crossover
sections permit operation with a wide variety
of source units and system configurations. The
300/4v3 can operate with a single pair of stereo
inputs or with separate inputs for front and rear
channels, if the source unit is equipped with front
and rear outputs.
TYPICAL INSTALLATION SEQUENCE
The following represents the sequence for
a typical amplifier installation, using an
aftermarket source unit or OEM Interface
processor (like the CleanSweep® CL441dsp).
Additional steps and different procedures may
be required in some applications. If you have
any questions, please contact your authorized
JL Audio dealer for assistance.
1) Disconnect the negative battery post
connection and secure the disconnected cable
to prevent accidental re-connection during
installation. This step is not optional!
2) Run power wire from the battery location
to the amplifier mounting location, taking
care to route it in such a way that it will
not be damaged and will not interfere with
vehicle operation. 4 AWG is recommended
for wire runs greater than 72 inches (180
cm) in length. Use of 8 AWG power wire is
acceptable for shorter runs, such as from a
power distribution block to the amplifier or
from a trunk-mounted battery. Use a 2 AWG
or 1/0 AWG main power wire with a fused
power distribution block when additional
amplifiers are being installed with the 300/4v3
and powered from the same main power wire.
3) Connect power wire to the positive battery
post. Fuse the wire with an appropriate fuse
block (and connectors) within 18 inches (45
cm) wire length of the positive battery post.
This fuse is essential to protect the vehicle.
Do not install the fuse until the power wire
has been connected to the amplifier.
4) Run signal cables (RCA cables) and remote
turn-on wire from the source unit or interface
processor to the amplifier mounting location.
5) Run speaker wire from the speaker systems to
the amplifier mounting location.
6) Find a good, solid, bare metal grounding
point close to the amplifier and connect the
negative power wire to it using appropriate
hardware. Use minimum 8 AWG power wire,
no longer than 36 inches (90 cm) or 4 AWG
wire up to 60 inches (150 cm) long from the
amplifier to the ground connection point. In
some vehicles, it may be necessary to upgrade
the battery’s ground wire as well. (See page 6
for important notice).
7) Securely mount the amplifier using
appropriate hardware.
8) Connect the remote turn-on wire and the
positive and negative power wires to the
amplifier’s power connector plug. Then insert
the power connector plug into the amplifier’s
power connector receptacle, pushing firmly.
9) Connect the RCA input cables
to the amplifier.
10) Connect the speaker wires to the speaker
connector plugs and insert the plugs firmly
into the speaker connector receptacles.
11) Carefully review the amplifier’s control
settings to make sure that they are set
according to the needs of the system.
12) Install power wire fuse (40A for a
single 300/4v3) and reconnect the negative
battery post terminal.
13) Turn on the source unit at a low level
to double-check that the amplifier is
configured correctly. Resist the temptation
to crank it up until you have verified the
control settings.
Produktspezifikationen
| Marke: | JL Audio |
| Kategorie: | Autoverstärker |
| Modell: | 300 |
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