GARMIN JL AUDIO CF-690W (01) PDF Document

The following tools are needed for installation:

• Drill and drill bits

• Phillips screwdriver

• Wire cutter

• Wire strippers

• Crimping tool

• Speaker wire

NOTE: For customized installations, additional tools and materials may be needed.

When mounting the speakers, please observe these considerations:

• There must be sufficient clearance for the mounting depth of the speakers as specified in the product specifications.

• The mounting surface should be flat for the best seal.

• You should protect the speaker wires from sharp objects, and always use grommets when wiring through panels.

To ensure optimum performance, you must install the supplied foam gasket. The installation manual illustrates three different mounting options, each involving the speaker, gasket, and mounting surface/grille in various configurations. The essential step across all options is the use of the foam gasket.

For passive system applications, you must connect to the terminals marked “LPF” to use the built-in low-pass filter (550 Hz, at a rate of 18 dB/octave).

You must use the terminals marked “No Filter” in active system applications. For optimum performance, you should use a high-quality digital signal processor (DSP) or an active crossover and a dedicated amplifier channel. You should set your filter to low-pass at 550 Hz, at a rate of 18 dB/octave.

You should use 16 AWG (1.3 through 1.5 mm²) oxygen-free copper (OFC) speaker wire. The following tables can help determine if a larger gauge of wire is needed, accounting for terminal connection resistance. NOTE: Copper-clad aluminum (CCA) wire is not recommended.

4 Ohm Load (1 Speaker)

2 Ohm Load (2 Speakers in Parallel)

If there is no sound coming from the speakers, you should verify that all connections from the source device and/or the amplifier are connected correctly to the speaker terminals. If the speaker was installed by a professional installer, you should contact the installer for assistance.

• Verify that the correct wire polarity is observed between the source and speakers. The wires should be connected positive to positive and negative to negative.

• Verify that the speakers are attached firmly to the mounting surface.

• Verify that the source volume is not too loud for the speaker, and reduce the volume if necessary.

• Verify that the panels surrounding the speaker are not rattling.

• Verify that the source device or the amplifier are connected to the speaker terminals correctly.

• If the speaker is connected to an amplifier, verify that the input level of the amplifier is matched to the output level of the stereo. For more information, see the owner’s manual for the amplifier.