Our take on the JL Audio TR400-CXi

by Buck Pomerantz

You need great speakers to turn the audio signals from your car stereo into music. The Evolution™ TR series speakers take advantage of JL Audio's extensive research and obsessive testing to deliver excellent performance at prices any audio enthusiast can afford. Evolution™ TR speakers come in a wide range of sizes so you can improve the sound in almost any vehicle.

JL Audio's TR400-CXi 4" speakers use mica-filled long-excursion polypropylene woofers for enhanced upper bass response that'll really fill out your drums and guitars. The 1/2" woven textile dome tweeters broadcast all the little details that bring your music to life. Ferrofluid cooled tweeters and butyl rubber surrounds mean that these speakers will bring you great music for many years to come.

Highlights:

2-way 4" speakers (pair)
injection-molded mica-filled polypropylene woofer
butyl rubber surround
1/2" textile dome tweeter
includes adapter plates for mounting in 4"x6" openings
4-ohm impedance
10-35 watts RMS power range
frequency response: 71-22,000 Hz
sensitivity: 84.5 dB
depth: 1-7/8"
warranty: 1 year
Our 60-day money-back guarantee

Priced per pair

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and specs chart | What’s in the box? | In-depth notes

Features and Specs

General
Design Loading...	2-way
Tweeter Design Loading...	1/2" Dome
Tweeter Composition Loading...	Textile
Woofer Composition Loading...	IM Mica-filled poly
Woofer Surround Loading...	Butyl rubber
Parts Warranty Loading...	1 Year
Labor Warranty Loading...	1 Year
Specifications
Sensitivity Loading...	84.5 dB at 1 watt
Frequency Response Loading...	71 - 22k Hz
RMS Power Range (Watts) Loading...	10-35
Peak Power Handling (Watts) Loading...	70
Impedance (Ohms) Loading...	4
Top-mount Depth (Inches) Loading...	1 7/8
Bottom-mount Depth (Inches) Loading...	N/A
Cutout Diameter or Length (inches) Loading...	3 11/16

Product Research

What's in the box?

Download owner's manual

Two 2-way speakers
Two plastic 4x6 adapter frames
8 Self-tapping screws (length=1-3/16")
4 Self-tapping screws (length=5/16")
8 Speed clips
2 Grilles
2 Grille frames
Butyl adhesive putty for grilles
2 Crimp-on 2.8mm female quick slides
2 Crimp-on 5.2mm female quick slides
Owner's Manual
Cutout template

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Features

Woofers: The JL Audio Evolution TR-series coaxial speakers feature injection-molded, mica-filled polypropylene cone woofers with 1" voice coils and flat symmetrical-roll spiders. The woofers use butyl rubber surrounds for reliability and strength.

Tweeters: The speakers have 1/2" treated textile dome tweeters with an integral phase plug and powerful, ferro-fluid cooled and damped neodymium magnets.

Crossovers: The TR-series coaxials use electrolytic capacitors on the 1st order high-pass filters. The woofer is unfiltered, using its engineered smooth roll-off characteristics to blend with its tweeter.

Flexible Mounting System: The speaker's 4 mounting tabs are scored to allow you to easily break them off for any application in which only 2 mounting screws are required. In addition, plastic 4x6 adapter plates are included to allow you to install these speakers into vehicles that use oval 4x6 speakers. Four 5/16" screws are supplied for attaching the speaker to the adapter plates.

Grilles: Two black metal mesh grilles and black ABS plastic grille frames are included with the speakers.

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1-6 of 6 items Sort Results By: Date Reviewed | Rating | Helpfulness

4 out of 5

Decent for the price.

Written By Doug, Oshawa, Ontario, Canada on Thursday, June 02, 2011

I bought 1 of these to replace the 3.5" Infinity Reference in my dash slot. I had to modify the opening a bit to fit the speaker in but there is a huge sound difference. I had to install a 100uF capacitor on the Infinity to keep the lower midrange from clipping the speaker out at high volumes. The TR400-CXi handles them without a problem. The highs are much clearer and the distortion I had is gone now. Where I live there aren't many shops with decent car audio but I managed to pick up one. For the price I'm definately pleased with this speaker. I haven't owned it long enough to know if it has a defect like some people are claiming but I assume it only happens to a handfuul of units. Probably ones made on a Friday LOL!! I would reccommend this speaker if someone needs a midrange fill. If it was actively crossed over properly it would sound beautiful. I've got mine hooked up at 35W from a monsoon amp in a grand prix. The guy at the store was running 150W to them and they were still holding up at moderate volumes!!

1 out of 1 people found this helpful