INSTALLING YOUR TR350-CXi 
COAXIALS IN CUSTOM LOCATIONS:
Run speaker wire to the desired mounting 
location. 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. Then, cover the 
wires with a protective PVC sleeve and run them 
through the door jamb. Make sure that the wires 
will clear door hinges and other structures in the 
door. If you are unsure about any part of this 
process, please contact your JL AUDIO dealer for 
installation help.
Double check the clearance for both speakers 
before proceeding.
Cut a 3 3/16-inch (81mm) diameter hole. 
Before drilling or cutting, 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.Then, using a saber saw, hole saw or nibbler, 
make the circular cut out for the speaker. File any 
rough edges.
Once the hole is cut, place the speaker into 
the hole and mark the screw positions through 
the mounting tabs. Drill two 1/8” (3 mm) holes 
for the speaker’s mounting screws at the positions 
you have marked.
Insert the mounting clips with the flat side 
towards the speaker as shown in the diagram.
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 surface! This 
will damage your speakers. The speaker should also 
fit so that no air leaks around the mounting flange. 
Air leaks will cause a severe degradation in sound 
quality. Seal any air leaks with silicone, rope caulk or 
similar sealant material.
Connect the speaker wires, observing correct 
polarity,and install the speaker as shown. Handtighten the screws evenly to avoid bending the 
speaker frame!
Because 3.5-inch speakers are rarely used for 
custom mounting, grilles are not supplied with the 
TR350-CXi speakers. Should you need them, you 
will need to purchase aftermarket grilles 
separately.
JL AUDIO TR350-CXi 3
TR350-CXi SPECIFICATIONS:
Woofers: Injection-molded, mica-filled, polypropylene 
cone body, 0.75-inch (19mm) voice coil, symmetricalroll spider, polyether foam surround.
Tweeters:0.5-inch (12 mm) textile dome tweeter 
with integral phase plug, neodymium magnet, 
ferrofluid cooled and damped.
Continuous Power Handling:
25 Watts (RMS Method)
Frequency Response: 130 Hz - 22 KHz (± 3 dB) 
Efficiency @ 1W/1m: 83.0 dB 
Nominal Impedance: 4 ohms
Included Components and Parts:
• Two TR350-CXI 3.5-inch (90mm) 
Coaxial loudspeakers
• Four #8 x 1 inch (25mm) sheet metal screws
• Four Mounting Clips
• Two 5.2 mm female crimpable connectors
• Two 2.8 mm female crimpable connectors
GETTING STARTED:
• Turn off the audio system. It is also advisable to 
disconnect the negative (-) terminal of your 
vehicle’s battery whenever performing 
installation work.
• Before cutting, drilling or inserting any screw, 
check clearances on both sides of the planned 
mounting surface. Also check for any potential 
obstacles, such as window tracks and motors, 
wiring harnesses, etc. Check both sides of the car, 
many cars are not symmetrical!
• Always wear protective eyewear.
INSTALLING YOUR TR350-CXi 
COAXIALS IN FACTORY LOCATIONS:
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 large connector is for the 
positive terminal and the small connector is for the 
negative terminal of each TR350-CXi. You may also 
choose to run new speaker wires...refer to the 
custom installation section for details. Whichever 
method you choose, observe correct polarity in 
your connections. If you are unsure about any of 
these issues, contact your JL AUDIO dealer for 
installation assistance.
Your new speakers have been designed to install, 
without modifications, into most vehicles that accept 
a 3.5-inch speaker. Most factor y 3.5-inch speakers 
use two mounting screws which will line up with 
the mounting holes on your TR350-CXi speakers.
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 surface! This 
will damage your speakers. The speaker should also 
fit so that no air leaks around the mounting flange. 
Air leaks will cause a severe degradation in sound 
quality. Seal any air leaks with silicone, rope caulk or 
similar sealant material.
Install as shown in the diagram here. Use the 
supplied mounting clips unless the factory holes 
already feature threaded inserts. Hand-tighten the 
screws evenly to avoid bending the speaker frame!
2 JL AUDIO TR350-CXi