JL Audio E6450 owner manual Product Description, Typical Installation Sequence, Power Connections

Page 3

PRODUCT DESCRIPTION

The JL Audio e6450 is a six-channel full-range amplifier utilizing patented Absolute Symmetry™ Class AB technology for all channels.

The e6450 can be operated with a wide variety of source units and system configurations.

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 4 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 2 AWG or 1/0 AWG power wire if additional amplifiers are being installed with the e6450.

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 and remote turn-on wire from the source unit to the amplifier mounting location.

5)Run speaker wire from the speaker systems 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 (minimum 4 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 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 the power wire fuse (60A for a single e6450) 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 controls to obtain the right overall output and the desired balance in the system. See Appendix A (page 12) for the recommended input sensitivity setting method.

16)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 body during installation.

The e6450's “+12 VDC” and “Ground”

connections are designed to accept 4 AWG

power wire. 4 AWG is a minimum power

wire size for this amplifier.

If you are installing the e6450 with other amplifiers and wish to use a single main power wire, use 2 AWG or 1/0 AWG main power wire (depending on the overall current demands of all the amplifiers in the system).This 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 e6450 with 4 AWG power wire.

Please note that smaller 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.).

To connect the power wires to the amplifier, first back out the set screw on the top of the terminal block, 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 terminal block, 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.

! IMPORTANT

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 when installing amplifier systems with main fuse ratings above 60A.

FUSE REQUIREMENTS

It is absolutely vital that the main power wire(s) 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

e6450 is being run from that power wire, we recommend a 60A fuse be used. AGU (big glass fuse) or MaxiFuse™ (big plastic-body fuse) types are recommended.

No fuse is required or recommended directly before the amplifier power connection. If one is desired, we recommend the use of a 60A AGU fuse or MaxiFuse™ type.

TURN-ON LEAD

The e6450 uses a conventional +12V remote turn-on lead, typically controlled by the source unit's remote turn-on output.The amplifier will turn on when +12V is present at its “Remote” input and turn off when +12V is switched off. If a source unit does not have a dedicated remote turn-on output, the amplifier’s turn-on lead can be connected to +12V via a switch that derives power from an ignition-switched circuit.

The e6450's “Remote” turn-on connector is designed to accept 18 AWG – 12 AWG wire.To connect the remote turn-on wire to the amplifier, first back out the set screw on the top of the terminal block, using the supplied 2.5mm hex wrench. Strip 1/2 inch (12mm) of wire and insert the bare wire into the terminal block, seating it firmly so that no bare wire is exposed. While holding the wire in the terminal, tighten the set screw firmly, taking care not to strip the head of the screw and making sure that the wire is firmly gripped by the set screw.

4

JL AUDIO e6450

JL AUDIO e6450

5

Image 3
Contents N e r ’ s m a n u a l Serial Number Installation ApplicationsPlanningyour Installation Protectyour HearingFuse Requirements Typical Installation SequencePower Connections Product DescriptionInput Section Amplifier ControlsFilter Controls Bridging Considerations Amplifier Status Indicator Lights Protection CircuitryBass Boost Controls Speaker OutputsBI-AMPLIFIED System with the e6450 System ConfigurationsNo User Adjustability BI-AMPLIFIED SystemsAppendix a Appendix BAppendix C Appendix D Trouble Shooting MY Amplifier DOESN’T Turn on MY Amplifier Turns ON, but There is no OutputHOW do I Properly SET the Input Sensitivity on MY Amplifier Installation Notes JL Audio e6450 E6450MAN-CH-03-2003 Limited Warranty Amplifiers USA

E6450 specifications

The JL Audio E6450 is a versatile amplifier designed for car audio enthusiasts seeking high performance and reliability. This 4-channel amplifier is part of JL Audio's E-Series, which is known for its exceptional sound quality and robust construction, making it suitable for a wide range of audio systems.

One of the standout features of the E6450 is its compact size, allowing for easy installation in various vehicle types. Despite its small footprint, this amplifier delivers impressive power output. It can provide up to 75 watts per channel into a 4-ohm load, enabling it to drive a range of speakers effectively. Moreover, it can bridge its channels to produce 150 watts at 4 ohms, allowing for a flexible setup that can accommodate both front and rear speakers or drive a subwoofer.

The E6450 employs advanced technologies to optimize audio performance. Its sophisticated input circuitry ensures compatibility with various audio sources, including factory and aftermarket head units. The amplifier is equipped with differential-balanced inputs that help eliminate noise and interference, ensuring a clean and clear audio signal.

Another noteworthy aspect of the E6450 is its built-in crossover network. The fully adjustable high-pass and low-pass filters allow users to tailor the frequency response according to their specific audio needs, ensuring seamless integration with other components in the sound system. This feature is particularly useful for users who wish to pair the amplifier with subwoofers or other speakers that require distinct frequency ranges for optimal performance.

JL Audio has also incorporated thermal management into the E6450 to ensure longevity and reliability during operation. Its temperature-sensitive protection circuitry prevents overheating, allowing the amplifier to perform under varying load conditions without risking damage.

In terms of build quality, the E6450 is constructed with high-quality materials that are designed to withstand the rigors of vehicle use. Its robust casing provides effective protection against the elements, while the stylish design fits well with modern car interiors.

Overall, the JL Audio E6450 stands out as a reliable and high-performing amplifier suitable for both novice and experienced car audio enthusiasts. Its combination of power, advanced technology, flexible installation options, and rugged construction make it a compelling choice for enhancing your vehicle's audio system.