Bedienungsanleitung JL Audio C7-350cm (Seite 5 von 8) (Englisch)

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C7-350cm: Installation

SPEAKER WIRING

If you will be using the factory speaker wires, it

may be necessary to change the terminations. This

may be accomplished by using an adaptor plug

or simply by cutting the factory connector off and

using the supplied crimp connectors to terminate

the speaker wires. The larger connector is for the

positive terminal and the smaller connector is for the

negative terminal of the C7-350cm.

If you choose to run new speaker wires, protect

all wiring from sharp edges by carefully routing

them, securing them and using grommets and loom

where appropriate. If you are running wires into a

door, use existing factory wiring boots whenever

possible. If you are drilling new holes, file their edges

and install rubber grommets into each hole. Wires

running into car doors should be covered with a

protective, flexible PVC sleeve. Make sure that the

wires will clear door hinges and other structures in

the door.

SPEAKER INSTALLATION

The speakers should be installed in one of the

following ways depending on location:

Factory Location: Your new speakers have been

designed to install, without modifications, into most

vehicles that accept a 3.50-inch (90 mm) speaker.

Most factory 3.50-inch speakers use four mounting

screws which will line up with the mounting holes

on your woofers.

It is absolutely vital that the speaker frame fits into

the mounting hole cleanly. This must be checked

prior to tightening the screws. Do not force the

frame into a hole that is too small. Do not tighten the

speaker onto an uneven mounting surface. This will

damage your speakers. The speaker should also fit so

that air does not leak around the mounting flange.

Air leaks will cause a severe degradation in sound

quality. Seal any air leaks with an automotive-grade

sealant material. Hand-tighten the screws evenly in

a criss-cross pattern to avoid bending the speaker

frame or stripping the mounting screw holes. (See

Diagram C).

CROSSOVER CONSIDERATIONS

Passive crossover networks are not included with

C7 drivers, as they are designed for active systems.

Actively configured systems allow all filtering and/or

equalization to be configured prior to reaching the

amplifier, thus avoiding the technical compromises

of passive crossover networks. The result is

linear, crystal clear audio output and minimal

distortion. For optimum performance, we strongly

recommend the use of a high-quality DSP and a

dedicated amplifier channel.

Custom Location: Select a desired mounting

location with an even surface. Tightening a

speaker onto an uneven mounting surface can

damage it. Mark the center and the outline of the

speaker’s mounting hole. Before drilling or cutting

on your interior panels, use a utility knife to cut

any fabric, vinyl or leather from hole locations.

These materials can easily be snagged by a drill or

a saw, causing damage to the panel and possible

bodily injury. Drill a pilot hole in the center of the

proposed speaker mounting hole. Then, using

an appropriate cutting tool, make the circular

cut out for the speaker. File any rough edges.

After cutting the hole, check to see that

the speaker frame fits into its mounting

hole cleanly. Do not force the frame into a hole

that is too small. Once the speaker is in place, use

the holes on the speaker’s mounting flange to

mark the panel where the four mounting screws

will be positioned (See Diagram D). Remove the

speaker and drill 7/64-inch (2.78mm) holes at each

mark. Connect the speaker wires, observing correct

polarity, and secure the speaker and grille tray to the

panel by evenly tightening by hand the provided #6

x 1.25 inch (32 mm) mounting screws. Make sure the

speaker is secured so that air does not leak around

the mounting flange. Air leaks will cause a severe

degradation in sound quality. Seal any air leaks with

an automotive-grade sealant material.

Finally, select your preferred grille style and

insert it into the grille tray, pressing around

its edge until seated firmly in the tray.

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