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Image Dynamics CTX128

175W 12" CTX Series Single 8-Ohm Subwoofer Driver

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• 350W Peak RMS
• 175W RMS
• Poly-Mica Cone Woofer
• Butyl Rubber Surround
• Conex Spider with Integrated Tinsel Leads
• Black Anodized Aluminum Voice Coil Former

Learn more about the ctx128

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Product Highlights


• 350W Peak RMS
• 175W RMS
• Poly-Mica Cone Woofer
• Butyl Rubber Surround
• Conex Spider with Integrated Tinsel Leads
• Black Anodized Aluminum Voice Coil Former

Description


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Authorized dealer

Image Dynamics CTX128

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 CTX128 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 CTX128, 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 CTX128 is designed for different wiring variations in mind, including the addition of more subwoofers - without having to spend too much.

Image Dynamics CTX128 Recommended Power Range

General Features

  • 12" 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: 16 - 180 Hz
  • Sensitivity: 86 dB
  • Xmax: 16.0 mm
  • Mounting Depth: 5.65"
  • Cutout Dimensions: 11.0"
  • Infinite Baffle "Free Air" Ready/Compatible
  • Recommended Sealed Enclosures:
    • Audiophile (Large Box): 1.5 ft³ w/ 2lbs of Poly fill
    • Universal (Med Box): 1.5 ft³ w/ No Poly fill
    • Compact (Sm Box): 1.2 ft³ w/ 1lb of Poly fill
  • Recommended Ported Enclosures:
    • Audiophile (Large Box): 2.8 ft³ @ 28 Hz w/ 2lbs of Poly fill
    • Universal (Med Box): 2.8 ft³ @ 28 Hz w/ No Poly fill
    • Compact (Sm Box): 2.2 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-Ohm (i.e. ~175 watts). Said "~350 watts" amplifier would be PERFECT for TWO CTX108.

Subwoofer Wiring Guide


Wiring Guide to Wire 1 Image Dynamics CTX128 Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Image Dynamics CTX128 Subwoofers

Mono Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Image Dynamics CTX128 Subwoofers

Mono Amp

Wiring Guide to Wire 4 Image Dynamics CTX128 Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged


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Specifications & Details


Subwoofer Specifications
Series
CTX Series
Subwoofer Size
12"
Peak Power Handling
Not Specified by Manufacturer
RMS Power Handling
175 watts
Voice Coil(s)
Single
Impedance (Per Voice Coil)
8 ohm
Frequency Response
16 - 180 Hz
Sensitivity
86 dB
Xmax (millimeters)
16 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Polypropylene-Mica
Woofer Surround
Butyl Rubber
Subwoofer Grille
No
Re-Cone Kit Available
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Minimum Sealed Box Volume
1.2 cubic feet
Maximum Sealed Box Volume
1.5 cubic feet
Minimum Ported Box Volume
2.2 cubic feet
Maximum Ported Box Volume
2.8 cubic feet
Top-Mount Depth (Mounting Depth)
5.65"
Cutout Diameter
11.0"
Shallow Mount Installation
No
T/S Parameters (Electromechanical)
Total Speaker Q Value (Qts)
0.5616
Electrical Q Value (Qes)
0.6681
Electrical Resistance of Voice Coil (Re)
7.80 ohm
Mechanical Q Value (Qms)
3.520
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

CTX128

Weight:

9.50lbs

Internal SKU:

ctx128

Internal Product ID:

22192

Product and How-to Videos


  • Car Subwoofer Size Buying Guide | What Size of Sub Should I Get?

Customer Ratings & Reviews


Image Dynamics CTX128 thumbnail image

5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Reviews

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By Anthony on August 23, 2023 Checkmark Icon Verified purchase

11 found this helpful


They Slam!

Have these powered by my NVX JAD 1200 amp at 4 ohms. They absolutely slam and are very tight and accurate in a 1.1 cubic foot sealed box. They prefer a slightly larger box so they could get better.

By Derek on March 31, 2017 Checkmark Icon Verified purchase

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