See all parts that fit your 2004 Cooper
4" 2-Way Reference X Series Coaxial Car Audio Speakers
• Peak Power: 210W
• RMS Power: 70W
• 1" Edge-Driven Textile Dome Tweeter
• Mounting Depth: 1-7/8"
• Plus One Woofer Cone Technology
• True 4 Ohm Impedance
• Sensitivity: 92dB
Install a New Car Stereo and Retain Factory Antenna in select 2000-2017 vehicles from BMW, Mercedes-Benz, Ford
$11.99
List price $13.99
Install a new Single-DIN car stereo in select 2002-2008 Cooper convertible
$17.99
List price $33.99
600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers
$79.96
List price $119.99
720W Peak (180W RMS) 6x9” DS Series 3-way 4-ohm Coaxial Car Speakers with Integrated Midrange
$119.99
List price $139.99
680W Peak (120W RMS) 6.5" HED Series 3-Way Coaxial 4-ohm Speakers
$79.99
List price $95.99
440W Peak (80W RMS) 6.5" SXE-Series 2-way 4-ohm Component Speakers with Mylar-Titanium Tweeters
$64.99
List price $77.99
180W Peak (90W RMS) 5.25" Formula Series 2-Way 4-ohm Coaxial Car Speakers
$29.99
List price $69.99
• Peak Power: 210W
• RMS Power: 70W
• 1" Edge-Driven Textile Dome Tweeter
• Mounting Depth: 1-7/8"
• Plus One Woofer Cone Technology
• True 4 Ohm Impedance
• Sensitivity: 92dB
These speakers are specially designed with true 4ohm technology. The impedance of these speakers are 3ohms, but when you pair them with thin factory wiring, the impedance will naturally rise up to a true 4ohms resulting in a maximum amount of power draw from your 4ohm rated factory receiver, aftermarket deck, or external amplifier. What it comes down to is efficiency. If you need a speaker that will get the most out of your current sound system, the Reference X series is for you.
Each of the Reference X speakers features plus one woofer cone technology. This means the cone has been designed to be slightly larger than comparable speakers, giving you even more output on the same amount of power. This drastically increases the efficiency of the speaker, and also extends the frequency response even lower to give you that nice thump you’ve been looking for.
Want an easy upgrade for your factory speakers without going over your budget? The Infinity Reference X Series is for you. Its engineered to bring your factory audio system to life, or to add clarity and depth to an aftermarket system. With innovative, patented technologies, and the kind of premium quality and construction that you would expect from the worlds top-selling premium car speaker brand, Infinity Reference X speakers will transform your listening experience into something amazing.
Sonic Electronix, one of the leaders in car audio, recently visited Harman, the premium global audio and infotainment group, at their research and development locations in Northridge, California and Detroit, Michigan. The purpose of these visits was to utilize and combine the powerful brand of Harman and the industry leading knowledge behind Sonic Electronix to begin working together on developing future car audio projects.
Priced Per Pair
|
(newest, current model)
|
|
(previous model, replaced by Infinity REF-4022cfx)
|
Single DIN Digital Media Receiver with Bluetooth and Amazon Alexa
$129.99
List price $150.00
Single DIN Digital Media Receiver with Bluetooth, Built-in Alexa (Sirius XM Ready)
$199.00
List price $250.00
Single DIN CD Receiver with Bluetooth and Built-in Alexa (Sirius XM Ready)
$199.00
List price $240.00
12" Single DIN Floating Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay, Android Auto, Backup Camera (SiriusXM and iDataLink Maestro Ready)
$769.99
10.1" Single DIN Floating Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay and Android Auto
$309.99
List price $349.99
10.1" Single DIN Floating Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay, and Wired Android Auto (SiriusXM Ready)
$899.99
List price $999.99
Single DIN CD Receiver with Bluetooth, HD Radio and SiriusXM Ready
$249.99
List price $280.00
Best selling similar products
• 150 watts Peak Each, 35 watts RMS Each
• 1-3/8" PEI (Polyetherimide) Dome Midranges
• 1/2" PEI (Polyetherimide) Dome Tweeters
• Woven Aramid Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB
$89.99
List price $107.99
Infinity REF407F (INFSPKRF407FUS)
• 105 watts Peak Each, 35 watts RMS Each
• 1/2" Textile Edge Driven Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB
$87.95
List price $139.95
• 135 watts Peak Each, 45 watts RMS Each
• 3/4" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB
(35)
$90.00
List price $99.99
Manufacturer:
Model Number:
REF-4002cfx
Weight:
4.50lbs
Internal SKU:
ref-4002cfx
Internal Product ID:
61825
| 5 star |
|
86% |
| 4 star |
|
14% |
| 3 star |
|
0% |
| 2 star |
|
0% |
| 1 star |
|
0% |
| Durability | ||
| Value | ||
| Features | ||
| Design | ||
| Usability |
Great speakers
I had been using the 3.5" infinitys on my motorcycle, but upgraded to the four inch. These speaker are driven by a zune MP3 player and a 300 watt nvx amp. The sound is awesome.
41 found this helpful
93 lexus ls400
i have this in all 4 doors of my lexus on my stock amp and my kenwood deck and it keeps up with my 15" sub i have on 780 rms. im wanting to mod my front doors and put the 5.25" version in and re-use my 4" i have now in a custom spot under my dash.
35 found this helpful
Great value
They're bad a$$. I use it in my plumbing truck and I'm thinking about putting it in a crank it up contest..
35 found this helpful
Great product
Great sounding speakers real good price fast free shipping great product
11 found this helpful
Amazaing little Speakers !
I put this from my Suzuki Jimny and explode de radio ...now is real sound, to be a small speakers they sound Amazing !!1 full of bass and beauty trebles....just an amazing upgrade to my 4X4
2 found this helpful
Great speaker's
Grant speakers replaced my speakers on my 1985 Goldwing. Sound great with my 1200watt amp. Crisp clear sound.
1 found this helpful
Very good speakers
These speakers are incredible for their size! They are super loud and decent bass again for their size! I have mine powered off the deck but would really like to see how they perform with an amp!! Great purchase if it's the size you need
1 found this helpful
NVX SDBSK2 1.38 Square Feet Damping Kit
Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks!
(48)
$14.99
List price $18.74
NVX SDBPRO20 20 Square Feet Damping Kit
Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks! (4.5mm Thick)
(4)
$109.99
List price $143.99
NVX SDBBP40 36 Square Feet Damping Kit
Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks! (91mil Thick)
(39)
$114.99
List price $131.99
Eliminates speaker panel distortion and reduces door vibration, rattles and squeaks!
(51)
$39.99
List price $47.99
NVX SDRLR1 Sound Damping Rubber Roller
Universal Professional Heavy Duty Roller for Sound Damping
(127)
$10.99
List price $13.99
NVX SDRLR2 Sound Damping Rubber Roller
Universal Professional Heavy Duty Roller for Sound Damping
(19)
$11.99
List price $14.99
NVX 25 ft. of True Spec 16 Gauge Speaker Wire
100% OFC wire with EnvyFlex metallic jacket and noise eliminating twisted-pair technology to provide crystal clear sound.
(57)
$14.99
List price $29.99
Belva 23 ft. of True Spec 16 Gauge Speaker Wire
100% Copper Clad Aluminum and PVC blended jacket for easy installation and high strand count for maximum audio quality
(20)
$12.99
List price $24.99
Belva BTK106 Trim Panel Remover
Six Piece Professional-Grade Installer Panel Removal Tool Kit for Car Stereo/Speakers
(46)
$14.99
List price $19.99
Belva BTK105 Trim Panel Remover
Five Piece Professional-Grade Installer Panel Removal Tool Kit for Car Stereo/Speakers
(73)
$11.99
List price $18.99
• 225 watts Peak Each, 75 watts RMS Each
• 1" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB
• Mounting Depth: 2.04"
(17)
$59.99
List price $71.99
Compact Control Surface For Color Grading Apps (Formerly Euphonix MC Color)
$1499.99
List price $1699.95
Compact Music Production Controller w/ Large LCD Screen And MPC Software for Mac & PC
$399.00
List price $999.00
In-Ear Stereo Earphones with Molded Construction (Silver + White)
$12.99
List price $19.99
Cancel
Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:
Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.
