JL Audio MX650-CCX-SG-WH Manuel Du Propriétaire

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6  |  JL Audio - MX650-CCX / MX770-CCX Owner’s Manual  
7
CoaXIal InstallatIon ProCeDure
DiagramsA&B(page7)showtypical
installation procedures into a fiberglass panel, 
using the supplied hardware. Always follow proper 
safety procedures. Use eye-protection at all times 
and a dust mask and gloves when cutting.
1)  Choose a flat mounting surface that has 
sufficient depth and air space behind it to 
accept the speaker. 
2)  Using a hole saw or jigsaw, cut a mounting 
hole for your respective speaker model (see 
“Mounting Hole Diameter (E)” specifications, 
page 2). If using a jigsaw, tracing the supplied 
mounting template will provide you with an 
accurate line on which to cut.
3)  Run the speaker cable from the amplifier 
output to the mounting location.
4)  Place the speaker in the hole (or use the 
mounting template) and mark the screw 
hole locations using a sharp, pointed tool.
5)   Remove the speaker and drill a pilot hole (see 
Pilot Hole Recommendation chart,  
page7)ineachofthescrewlocations.
It is also advisable to use a hand-driven 
countersink tool on each hole to further 
inhibit gel-coat cracking of fiberglass panels.
6)  Connect the speaker wires from the 
amplifier to the woofer connections.  
SeeWiringDiagramonpage5.
7)  Place the speaker into the opening.
8)Whileholdingthespeakerfirmlyinits
mounting location, place the #8 x 1 1/8-inch 
Phillips pan-head mounting screws (with 
washers) and snug in a criss-cross pattern, 
then tighten with a hand screwdriver in a 
criss-cross pattern.
Non-standard installations may require different 
hardware. Always use marine-grade, stainless-steel 
fasteners to ensure a secure, reliable installation.
 
DIaGram a
DIaGram B
Fiberglass thickness
recommended Pilot Hole Drill size
0.312 in. (7.92 mm) or less
1/8 in. (3.18 mm) pilot hole
foam core / fiberglass sandwich
1/8 in. (3.18 mm) pilot hole
larger than 0.312 in. (7.92 mm)
9/64 in. (3.57 mm) pilot hole
#8 sCrew: PIlot Hole reCommenDatIons
InstallInG tHe sPeaKers
Once the mounting locations have been 
established, run speaker cables from the amplifier 
outputs to the mounting locations. If you are 
running cables through bulkheads, drill holes for 
the cable and use a urethane or plastic grommet 
to protect the wire from chafing in the hole. Make 
sure that the cables will clear any mechanical 
devices in the boat and secure them with wire ties. 
 
 
If you have any questions about the installation  
or setup of your coaxial speaker system not 
covered in this manual, please contact your  
dealer or technical support. 
 
Jl audio technical support:  
(954) 443-1100  
9:00 AM – 5:30 PM (Eastern Time Zone)
 
Monday - Friday
 
 
Do not attempt to remove the tweeter from the grille or the grille from the speaker!  
The tweeter is permanently fixed to the grille and its wiring is permanently attached to the speaker 
frame. Attempting to remove the grille or the tweeter will damage the speaker and this damage will 
not be covered under warranty.