JL Audio 250 Bedienungsanleitung
Lesen Sie kostenlos die 📖 deutsche Bedienungsanleitung für JL Audio 250 (11 Seiten) in der Kategorie Autoverstärker. Dieser Bedienungsanleitung war für 8 Personen hilfreich und wurde von 2 Benutzern mit durchschnittlich 4.5 Sternen bewertet
Seite 1/11
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 (Eastern Time Zone).
JL AUDIO 250/1
monoblock subwoofer amplifier
owner’s manual
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.
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 heat sink fins 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 the supplied
screws so that it does not come loose in the event
of a collision or a sudden jolt to the vehicle (10 lbs.
of aluminum traveling at 60 MPH will hurt you).
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.
JL AUDIO 250/1 3
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.
2JL AUDIO 250/1
JL AUDIO 250/1
monoblock subwoofer amplifier
Amplifier Input Section
Input Sens.
Input Voltage
Low/High
Left Ch. Right Ch.
Signal Sensing
Off/On
Output Mode
Full-Range/Low-Pass/High-Pass
Left Ch. Right Ch.
Amp LP Filter
Mode/Slope
Off/12dB/24dB
Filter Freq. (Hz)
Bass Control
LF Boost (dB)
Off/30Hz
Infrasonic Filter
+1 +13
+3
+7
+10
Preamp Output Section
Remote Turn-On
Connector
(pg. 6)
Chassis Ground
Connector
(pg. 5)
+12 V Power
Connector
(pg. 5)
+12VDC Ground Remote
Positive
Subwoofer
Outputs
(pg. 10)
Negative
Subwoofer
Outputs
(pg. 10)
Selects
Boost Level
for Bass EQ
(pg. 9)
Left and Right
Preamp Output Jacks
(pg. 8)
Left and Right
Input Jacks
(pg. 7)
Selects Low-Pass
Filter Frequency for
Amplifier Channel
(pg. 8)
Input Sensitivity
Control
(pg. 7)
Input Voltage
Range Selector
(pg. 7)
Infrasonic Filter
On/Off Switch
(pg. 9)
Signal Sensing
Turn-On
On/Off Switch
(pg. 6)
Amplifier Low-
Pass Filter Slope
Selection/Defeat
(pg. 8)
Preamp Output
Mode Selector
(pg. 8)
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.
The 250/1's “+12 VDC” and “Ground”
connections are designed to accept 8 AWG -
4 AWG power wire. 8 AWG is a minimum
power wire size for this amplifier.
If you are installing the 250/1 with other
amplifiers and wish to use a single main power wire,
use 4 AWG, 2 AWG or 1/0 AWG main power
wire (depending on the overall current demands of
all the amplifiers in the system).This 4 AWG,
2 AWG or 1/0 AWG power wire should terminate
into a distribution block mounted as close to the
amplifiers as possible and should connect to the
250/1 with 8 AWG or 4 AWG power wire.
Please note that smaller AWG numbers mean
bigger wire and vice-versa (1/0 AWG is biggest,
2 AWG is smaller, then 4 AWG, then 8 AWG, etc.).
To connect the power wires to the amplifier,
first back out the set screw on the top of the
amplifier, using the supplied 2.5 mm hex wrench.
Strip 1/2 inch (12 mm) of insulation from the end
of each wire and insert the bare wire into the
receptacle on the front panel of the amplifier,
seating it firmly so that no bare wire is exposed.
While holding the wire in place, tighten the set
screw firmly, taking care not to strip the head
of the screw.
The ground connection should be made using
the same gauge wire as the power connection
and should be kept as short as possible, while
accessing a solid piece of sheet metal in the vehicle.
The surface of the sheet metal should be sanded at
the contact point to create a clean, metal-to-metal
connection between the chassis and the termination
of the ground wire.The use of a star washer to lock
down the connection is advisable.
Any wires run through metal barriers (such as
firewalls), must be protected with a high quality
rubber grommet to prevent damage to the
insulation of the wire. Failure to do so may result in
a dangerous short circuit.
Many vehicles employ small (10 AWG -
6 AWG) wire to ground the battery to the
vehicle chassis and to connect the alternator's
positive connection to the battery.To prevent
voltage drops, these wires should be upgraded to
4 AWG (or larger) when installing amplifier
systems with total fuse ratings exceeding 60A.
FUSE REQUIREMENTS
It is absolutely vital that the main power
lead to the amplifier(s) in the system be fused
within 18 inches (45 cm) of the positive battery
post connection.The fuse value at each power
wire should be high enough for all of the
equipment being run from that power wire.
If only the 250/1 is being run from that power wire,
we recommend a 30A fuse be used. AGU (big glass
fuse) or MaxiFuse™ (big plastic-body fuse) types
are recommended.
No fuse is required directly before the amplifier
power connection. If one is desired, we recommend
the use of a 30A AGU fuse or MaxiFuse™ type.
IMPORTANT
!
JL AUDIO 250/1 5
PRODUCT DESCRIPTION
The JL Audio 250/1 is a monoblock subwoofer
amplifier utilizing proprietary and patented Class D
technology. Its frequency response is limited to the
range below 500 Hz. It is not designed
for driving midrange speakers or tweeters.
Every aspect of its operation has been optimized
for low-frequency amplification. For detailed
specifications, please refer to Appendix E (page 19).
TYPICAL INSTALLATION SEQUENCE
The following represents the sequence for a
typical amplifier installation, using an aftermarket
source unit. 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 (minimum 8 AWG) 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. Use 4 AWG, 2 AWG or
1/0 AWG power wire if additional amplifiers are
being installed with the 250/1.
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 to the amplifier
mounting location.
5) Run speaker wire from the speaker system to
the amplifier mounting location.
6) Find a good, solid metal grounding point close
to the amplifier and connect the negative power
wire to it using appropriate hardware. Use the same
size power wire as the wire connected to the
“+12V” connection (min. 8 AWG), no longer than
36 inches (90 cm) from the amplifier to the ground
connection point. In some vehicles, it may be
necessary to upgrade the battery ground wire.
(See page 5 for important notice).
7) Securely mount the amplifier using the
supplied screws.
8) Connect the positive and negative power
wires to the amplifier. A fuse near the amplifier is
not necessary.
9) Connect the remote turn-on wire to
the amplifier.
10) Connect the RCA input cables to
the amplifier.
11) Connect the speaker wires to the amplifier.
12) Carefully review the amplifier’s control
settings to make sure that they are set according to
the needs of the system.
13) Install power wire fuse (30A for a single
250/1) and reconnect the negative battery
post terminal.
14) 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.
15) Make necessary adjustments to the input
sensitivity control to obtain the right overall output
and the desired balance between the subwoofer
output and the satellite (mid and high-frequency)
output. See Appendix B (page 13) for the
recommended input sensitivity setting method.
16) Enjoy the fruits of your labor with your
favorite music.
4JL AUDIO 250/1
Produktspezifikationen
| Marke: | JL Audio |
| Kategorie: | Autoverstärker |
| Modell: | 250 |
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