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Image Dynamics CTX108

175W 10" CTX Series Single 8-Ohm Subwoofer Driver

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Image Dynamics CTX108

175W 10" CTX Series Single 8-Ohm Subwoofer Driver

$69.99

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Dual 10" Vented Subwoofer Enclosure

CARB Compliant, 3/4" MDF Dual Enclosure Lined with Premium Carpeted Finish

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NVX 25 ft. of True Spec 12 Gauge Speaker Wire

100% OFC wire with EnvyFlex metallic jacket insulates and protects against damage from extreme conditions.

$39.99

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20 Square Feet of Sound Dampening Material

NVX Sound dampening is thicker than competitors, eliminates rattles and gives you bigger bass!

$53.99

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Image Dynamics CTX108

175 Watt Single 8-Ohm Subwoofer Driver

Looking to add some proper SQ Bass without breaking the bank? The CTX Series subwoofer drivers from Image Dynamics will allow you to accomplish just that. With a 'sweet spot' rating of 175 watts RMS of continuous power, these subwoofers will provide more than enough output and bass without having to upgrade your car's electrical system. The CTX108 features a poly-mica cone woofer and butyl-rubber surround for durability and optimum performance. In addition, the CTX series also features a conex spider with integrated tinsel leads for enhanced long linear excursion. So if you are looking to add quality bass without drying up your budget, then the Image Dynamics' CTX subwoofer series are the ones for you.

Single 8-Ohm Subwoofer drivers, like the Image Dynamics CTX108, are intended to be wired as a pair to achieve a final impedance of 4-Ohms or even 2-Ohms when wiring up four at a time. The CTX108 is designed for different wiring variations in mind, including the addition of more subwoofers - without having to spend too much.

Image Dynamics CTX108 Recommended Power Range

General Features

  • 10" Single 8-Ohm CTX Series Subwoofer
  • Power Handling:
    • Peak RMS: 350 watts
    • Recommended RMS: 175 watts
  • *Recommended Power Range: 50-350 watts
  • Poly-mica cone woofer
  • Butyl rubber surround
  • Spring loaded push terminals for easy installation
  • Conex spider with integrated tinsel leads
  • Black anodized aluminum voice coil former
  • Frequency response: 18 - 180 Hz
  • Sensitivity: 86 dB
  • Xmax: 16.0 mm
  • Mounting Depth: 5.125"
  • Cutout Dimensions: 9.125"
  • Infinite Baffle "Free Air" Ready/Compatible
  • Recommended Sealed Enclosures:
    • Audiophile (Large Box): 0.9 ft³ w/ 2lbs of Poly fill
    • Universal (Med Box): 0.75 ft³ w/ No Poly fill
    • Compact (Sm Box): 0.6 ft³ w/ 1lb of Poly fill
  • Recommended Ported Enclosures:
    • Audiophile (Large Box): 1.2 ft³ @ 28 Hz w/ 2lbs of Poly fill
    • Universal (Med Box): 1.2 ft³ @ 28 Hz w/ No Poly fill
    • Compact (Sm Box): 1.0 ft³ @ 28 Hz w/ 1lb of Poly fill
  • 1-year Manufacturer's Warranty
*For your consideration: When looking for an amplifier for just ONE CTX108, Any amplifier with a claimed RMS output of ~350 watts RMS will provide roughly half that rating at 8-Ohms (i.e. ~175 watts). Said "~350 watts" amplifier would be PERFECT for TWO CTX108.

Subwoofer Specifications

Subwoofer Series
Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.
CTX (Image Dynamics)
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
10"
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.
Not Specified by Manufacturer
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.
175 watts
Voice Coil(s)
Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.
Single
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.
8 ohms
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).
18 - 180 Hz
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".
86 dB
Xmax (millimeters)
Typically measured in millimeters, the Xmax value is the measure of a speaker cone's maximum excursion in one direction while maintaining a linear behavior.
16 mm
Subwoofer Design
This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Round / Circle
Main Cone Color
This is the color of the speaker's or subwoofer's cone.
Black
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
Subwoofer Grille
Most subwoofers are able to accommodate a universal grille; however, some subs include a grille and others have a specific, optional grille available for purchase separately. If "yes", then the subwoofer includes a grille. If "optional (sold separately)" the matching grille will need to be purchased in addition to the sub.
No
Re-Cone Kit Available
Some higher end subwoofers have replaceable cone assemblies. In case of a blown woofer, a recone kit allows for a simple replacement, as opposed to purchasing an entire new subwoofer.
No

Recommended Enclosure Specifications

Recommended Enclosure Type
This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed: These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented: These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass: These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

Ported / Vented
Sealed
Minimum Sealed Box Volume
This value indicates the minimum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
0.6 cubic feet
Maximum Sealed Box Volume
This value indicates the maximum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
0.9 cubic feet
Minimum Ported Box Volume
This value indicates the minimum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
1.0 cubic feet
Maximum Ported Box Volume
This value indicates the maximum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
1.2 cubic feet
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.
5.125"
Cutout Diameter
The actual diameter of the hole you will need to cut out if you are creating a new mounting location for this speaker, or if you are mounting a subwoofer in a box.
9.125"
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.

No

Electromechanical Parameters

Total Speaker Q Value (Qts)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including all dimensionless losses. Essentially, a high Qts value (closer to 1.0) means the subwoofer is great for sealed enclosures and a low Qts value (closer to 0) means the woofer is great in vented enclosures. A Qts of around 0.45 means the woofer will work decently in either enclosure type.
0.4930
Electrical Q Value (Qes)
The subwoofers relative damping (Q) at the resonance frequency (Fs), including electrical losses. Also called the mechanical damping of the subwoofer. The unitless measurement usually varies from 0.5 – 10.
0.5863
Electrical Resistance of Voice Coil (Re)
Amount of DC resistance of the subwoofer when measured with an ohm meter. Typically, this will read less than the impedance rating of the subwoofer.
7.80 ohms
Mechanical Q Value (Qms)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including mechanical losses. Also called the mechanical damping of the subwoofer. This unitless measurement usually varies from 0.5 – 10.
3.0980

Warranty and Return Policy

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

Summary of Customer Ratings & Reviews

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Accessory Tools and Products

Accessories added

Dual 10" Vented Subwoofer Enclosure

CARB Compliant, 3/4" MDF Dual Enclosure Lined with Premium Carpeted Finish

Your Price $88.95

Dual 10" Subwoofer Angled Truck or Hatchback Box Enclosure

CARB Compliant, 3/4" MDF Dual Enclosure Lined with Premium Carpeted Finish

Your Price $68.95

10" Subwoofer Angled Truck or Hatchback Sealed Enclosure

CARB Compliant, 3/4" MDF Sealed Enclosure Lined with Premium Carpeted Finish

Your Price $42.95

10" Sealed Subwoofer Enclosure

CARB Compliant, 3/4" MDF Sealed Enclosure Lined with Premium Carpeted Finish

Your Price $44.95

NVX 25 ft. of True Spec 12 Gauge Speaker Wire

100% OFC wire with EnvyFlex metallic jacket insulates and protects against damage from extreme conditions.

Your Price $39.99

25 ft. of Streetwires 12 Gauge Speaker Cable

You'll need speaker wire to hook up that new subwoofer!

Your Price $49.95

Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

Your Price $14.99

20 Square Feet of Sound Dampening Material

NVX Sound dampening is thicker than competitors, eliminates rattles and gives you bigger bass!

Your Price $53.99

Stinger Sound Dampening Trunk Kit

Stinger's Roadkill sound dampening series is sure to kill unwanted road noise and rattles! Enough sound dampening for your whole trunk!

Your Price $70.97

Dynamat Sound Dampening Trunk Kit

Did you know sound dampening will reduce those annoying rattles and even increase your SPL?

Your Price $97.97

2" Universal, Professional Heavy Duty Roller for Sound Damping/Dampening

Universal rubber roller to make it easy to install sound dampening.

Your Price $7.99

Car Stereo and Speaker Installation Tool Kit

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

Your Price $16.99

Cordless Multi-Functional Heat Tool Soldering Iron Kit

Continuous working lock allows you to work without holding down trigger.

Your Price $69.99

1mm All Purpose Solder

Solder is all purpose for use on most projects where solder is needed.

Your Price $8.99

12 oz. Can of Adhesive Spray

Spray adhesive used for adhering carpet to subwoofer boxes without bubbles.

Your Price $9.97

Spring Post Terminal Cup

Makes adding a spring post terminal to an enclosure simple! Banana clip ready!

Your Price $3.99

Gold Plated Dual Terminal Banana Plug Connector

Enables an expandable, secure connection accepting up to 8 gauge wire.

Your Price $1.99

Universal 10" Subwoofer Grille

Keep your subwoofer safe from accidental damages with this amazing grill.

Your Price $16.21

Universal 10" Subwoofer Grille

Keep your subwoofer safe from accidental damages with this amazing grill.

Your Price $17.95

10" Protective Waffle Subwoofer Grille

Keep your subwoofer looking amazing while keeping it safe.

Your Price $4.99

Scosche SPL Meter

Monitor the noise level of your new car audio system with this SPL meter measuring from 60-135 dB.

Your Price $21.99

Impedance Meter / Signal Generator

Easy to locate tuning frequencies of passive radiators and ported enclosures

Your Price $299.99

1 Image Dynamics CTX108 Subwoofer

Mono Amp

2 Channel Amp - Bridged

2 Image Dynamics CTX108 Subwoofers

Mono Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

3 Image Dynamics CTX108 Subwoofers

Mono Amp

4 Image Dynamics CTX108 Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

Browse 1 question and 2 answers
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Why did you choose this?
Sonic Electronix Store
Pure and simply, the price. Black Friday deal of $37 each, just can't be beat. By going with 4 of the 8 ohm version, I can keep my final amp load at 2 ohms and the amp won't have to work as hard, thus keeping it cooler. These subs should be able to take 250 watts each and amps putting out legit 1000 watts, not BS 'max power' watts, at 2 ohms can be found for reasonable prices. Plus, if I want more, I can get another 4 and run an amp that puts out 2000 watts at 1 ohm! Now we're talkin'! :D
Eric S on Nov 27, 2015
These are the smoothest most articulate subs. Great if you want small enclosure size and high excursion with the ability to wire up multiple subs to a single channel. This is my fourth Image Dynamics Sub (Second Car), It's safe to say I'm hooked on them.
Jarred S on Mar 10, 2015

Product Summary

Manufacturer

Model Number

CTX108

UPC

065248262313

Weight

9.00lbs

Internal SKU

ctx108

Internal Product ID

22190

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 CTX108

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