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Image Dynamics CTX-4

4" 2-Way CTX Series Coaxial Car Audio Speakers

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$79.99

with warranty

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The Affordable Solution for the Autosound Enthusiast:

For those seeking out the industry's most affordable and well balanced speakers, consider the Image Dynamics CTX4. The CTX series offers incredible acoustic detail and beautiful tonal qualities that is rarely found in speakers of the same price range. Whether you are planning on powering the speakers directly off of the car stereo or with an aftermarket amplifier, the Image Dynamics CTX4 coaxial speakers will handle the power gracefully.

Image Dynamics CTX speakers have been carefully designed, meticulously engineered, and properly built with ideal materials. The final result is a well balanced speaker that sound brilliant in just about every installation. Experience the CTX sound today!

  • 4" CTX Series 2-Way Car Speakers
  • Power Handling:
    • Peak: 200 watts per pair / 100 watts each
    • RMS: 100 watts per pair / 50 watts each
  • Mica-Polymer cone
  • Butyl rubber surround
  • Silk dome tweeter
  • High-energy neodymium tweeter magnets
  • 4 ohms impedance
  • High temperature and high power voice coil
  • Sensitivity: 87 dB
  • Frequency Response: 100-22,000 Hz
  • Top-mount depth: 1-15/16"
  • Also found as: CTX 4
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Priced Per Pair

Speaker Specifications

Series
This is the manufacturer product line of speakers.
CTX (Image Dynamics)
Priced Per
Car Speakers are typically sold in pairs so you will receive 2 speakers for each speaker purchase on speakers marked "Priced Per Pair". If a speaker is marked "Priced Per Each" then the speaker is sold individually and each purchase you make will result in 1 speaker. High-powered tweeters, midrange and full-range pro audio for car speakers are typically sold per each speaker.
Pair
Speaker Size
Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
4"
Design
The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
2-way
Tweeter Design
Designs such as cone, dome, semi-dome, balanced dome, and whizzer are most popular. Cone tweeters are simple, efficient and typically are the most reasonably priced. Dome tweeters are used in most home speakers, and provide a smoother and more accurate sound. Semi-dome design is one with a dome placed inside a cone. A Balanced dome driver is a semi-dome with equal reproduction area given the cone and dome portions of the driver. A whizzer tweeter is a separate tweeter cone driven by the voice coil of the woofer.
Dome
Tweeter Composition
Materials such as polypropylene, silk, cloth, and paper are the most common, where as many more recent tweeters are now manufactured with composites such as Aluminum, Titanium, Mylar, and other materials.

PEI is an acronym for "Polyetherimide" which is an amorphous, amber transparent, high-performance thermoplastic.

Silk
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Poly-Mica
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Butyl Rubber
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
100 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
50 watts
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
87 dB
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
100 - 22,000 Hz
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
4 ohms
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

Yes
Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
1-15/16"
Bottom-Mount Depth
The depth when installed from the bottom of the mounting surface. Measured from the bottom of the speaker's magnet to the top of the mounting holes on the rim of the speaker.
2-1/16"
Cutout Dimensions
Refers to the dimensions of the hole, measured in inches or millimeters, required to contain the speaker.
3-5/8" x 3-5/8" 
Speaker Grilles
A grating or screen of metal or plastic bars or wires, mounted in front of a speaker as protection. If yes, the speakers will include matching speaker grilles. If no, there are no grilles included.
Yes

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
80%
4 Star
20%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.8
Value
5.0
Features
5.0
Design
4.2
Usability
5.0
Terry H

Saint Charles, MO

Overall
Durability
Value
Features
Design
Usability
Very good 4 inch speakers!

January 8, 2014

I bought a set of these back in November to go along with a set of Image Dynamics CTX65cs comps. These CTX4 coaxials blend in so well with the 6.5 that I forgot I had them so I never wrote a review until now. To really tell how they sound I had to fade my system to the rear and when I did I found that these sounded almost as good as the larger front speakers (just lacking the mid bass) but 4 inch speakers normally don't produce the 60 to100hz range anyway. So to sum it up, if you have factory 4 inch speakers in the rear and you want to upgrade your rear fill, then get these and you will never buy another set. Yes, they sound that good.

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chris

lake elmo, mn

Overall
Durability
Value
Features
Design
Usability
nice speaker

September 17, 2013

Well constructed, nice upper midrange and smooth, not too shiney highs. Recommended.

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D

Portland

Overall
Durability
Value
Features
Design
Usability
Best speakers made!

December 25, 2012

These 4" image dynamics are one of a kind...i have an 88 2 door toyota pick up with 2 10" shallow mount MB quart subs.. 2 6.5" Image dynamics chameleons in fiberglass kickpods in the front- all powered on a 600watt crossfire amp with clarion DRX-9255 head unit...though this system all read packs a punch all i was missing was a little more tweet and mid bass...the 4" image dynamics ctx-4 did the job perfectly..i put them in the factory slots in my dash facing the riders and they sound amazing...they dont need any capacitors or bass removers because these small speakers "slam" iv personaly never heard any 4" speaker louder...not only this but the speaker sounds extremly clear...no distortion what so ever...i would highly recommended the this speaker to anybody who appreciates good sound...the quality of speaker I would compare this to is klipsch...it sounds amazing! I highly suggest buying these 4's or any image dynamics product!

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mayollo

PR

Overall
Durability
Value
Features
Design
Usability
Great Value!

April 17, 2012

This small speakers have a crisp and clear sound and they also have a great price!

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Matthew

Takoma Park, MD

Overall
Durability
Value
Features
Design
Usability
Oh the beauty of audiophile sound at such an amazing price!

October 8, 2011

I have a 2002 Subaru Forester. While the front panels are 6.5", they decided to be evil and make the rear panels 4". Then they went a step further and placed them so you can't install larger speakers with out dropping some serious cash on a custom install. Never fear, SonicElectonix and Image Dynamics to the rescue!

Pros:
Audio Quality: Simply put these speakers sound beautiful. I was originally going to get the DLS Performance 124s, but after my offer of $50 for the Image's was accepted, my choice was easy. What these speakers lack in bass (as expected from 4 inchers) they more than make up for in mids and highs. The silk dome tweeters are adjustable (although if you have to use the grill like I do, they can't be angled up as far as I would like) and sound amazing. I have Polk Audio db series speakers in the front and frankly, music sounds better in the back.
Construction: The poly-mica woofers feel exceptionally durable and man oh man does that silk make all the difference in the world.
Frequency Response: Really exceptional for 4" speakers. Nothing in the price range can come close to handling what the amp/head unit throws at it. Also the built in bass blockers are
Power Handling: Again, At the price I paid you're looking at 30-35 RMS average load, but with the CTX-4s you get a nice meaty 50. Perfect for my amp (also I was assured by the wonderful tech support agent that 50 was lowballing and they can handle much more).
Price: Rocks. Nuff said.

Cons: They are 4" speakers. But that can't be helped (the car that died on my had Inifinity Kappa 929.1s on the rear deck so hiphop just isn't the same).
The tweeter can't be angled as high as I would like with the speaker grill on. (I'm really searching for cons here)
Silk tweeters are delicate and won't last as long as ones made from other materials. Oh well, that just means I'll get to go through the joy of picking out another amazing product fron sonicelectronix!
Design: The grills look kinda silly. Again, I'm reaching here.

Overall: I would recommend these speakers to ANYONE stuck with 4inchers. My set up (Alpine Head, Alpine Power Pack (soon to be installed DLS or Focall 6.5" front pane)l and Image Dynamics CTX-4's in the back cost me around $400 total in parts, and aside from Subaru's strange connecters for the rear speakers that required my friends help, total install time was less than an hour. In my humble opinion the Images fit right in.

Purchase with confidence.

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Accessory Tools and Products

Accessories added

Streetwires 50 ft. of True Spec 16 Gauge Speaker Wire

You need speaker wire to connect your speakers!

Your Price $29.99

Belva 23 ft. of True Spec 16 Gauge Speaker Wire

100% Copper Clad Aluminum, PVC blended jacket for easy installation and high strand count for maximum audio quality

Your Price $12.99

16-14 AWG Butt Connectors

These blue butt connectors are ideal when connecting thicker speaker wire your new aftermarket speakers!

Your Price $4.99

16-14 AWG Blue T-Tap Adapters

Allows for fast and easy splicing of wires by easily tapping into the cable.

Your Price $4.49

16-14 AWG Quick Disconnect Connectors

These blue quick disconnect connectors make it easy to connect and disconnect speaker wire your to your new aftermarket speakers!

Your Price $7.99

Dynamat Xtreme Speaker Kit 10415

Enough sound dampening for 2 speakers!

Your Price $14.95

Stinger Roadkill Speaker Kit

Use this to eliminate rattle from your speakers!

Your Price $13.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $14.99

Xscorpion 9-Piece Nylon Plastic Pry and Chisel Tool Set

Easily removes dash/trims, door clips, panels and pins, rubber grommets and vehicle emblems.

Your Price $14.99

Xscorpion WDCR2 Window and Door Clip Remover

Removes and installs handle and window crank clips.

Your Price $6.99

3 in 1 Wire Quick Splice T-Tap and Butt Connector Crimper + Wire Cutter

Used for cutting copper and aluminum wires up to 8 gauge.

Your Price $21.99

NVX SDRLR1 Sound Dampening Rubber Roller

Install your Sound Dampening with ease! This heavy duty rubber roller is designed specifically to install your NVX products!

Your Price $7.99

3/4" Depth Extender for 4" Speakers

Add 3/4" of extra space when installing your speakers.

Your Price $6.99

XTC 4" Round Foam Speaker Baffles

Creates a tight, acoustic seal behind the speaker to enhance the sound quality.

Your Price $8.99

4" x 6" to 4" Speaker Adapters

Perfect fit for 4" speakers!

Your Price $7.99

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Product Summary

Manufacturer

Model Number

CTX-4

Weight

4.00lbs

Internal SKU

ctx4

Internal Product ID

22331

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Image Dynamics CTX-4