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Rockford Fosgate Power T142C

4" 2-way Speakers


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Rockford Fosgate Power T142

OUR PRICE: $149.95

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Rockford Fosgate Power T142C

4" 2-way Speakers


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Car Stereo and Speaker Installation Tool Kit

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NVX SDSK2 Speaker Kit

Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks!



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  • Rockford Fosgate is known for great technology in their speakers and the T142C will not disappoint you. The T142C offers a superior music experience that will last long and be tough for years to come.
    • 4" 2-way Speakers
    • Power Handling:
      • Peak: 160 watts per pair / 80 watts each
      • RMS: 80 watts per pair / 40 watts each
    • Injection-molded polypropylene cone woofer
    • Polyurethane surround
    • Proprietary cold-rolled steel basket
    • Aluminum dome tweeter
    • Neodymium tweeter magnet
    • Integrated 12dB/oct. crossover
    • Swivel tweeter housing
    • Sensitivity: 85 dB
    • Frequency Response: 80 Hz - 22 kHz
    • Mounting Depth: 1.6"
    • 1-year warranty

    Priced Per Pair

    Product History:

    Rockford Fosgate T142 thumbnail
    (newest, current model)
    Rockford Fosgate T142C thumbnail
    (previous model, replaced by Rockford Fosgate Power T142)

    Speaker Specifications

    This is the manufacturer product line of speakers.
    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.
    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.
    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.
    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.
    Tweeter Size
    Refers to the size of the tweeter. Typically, smaller tweeters produces less output with higher frequency response.
    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.

    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.
    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.
    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.
    80 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.
    40 watts
    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".
    85 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).
    80 - 22000 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.

    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.
    Cutout Dimensions
    Refers to the dimensions of the hole, measured in inches, required to contain the speaker.
    Hi-Res Audio Compatible
    This feature refers to if the product is capable of Hi-Res Audio (HRA) playback.
    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.
    Number of Speakers
    This is the number of speaker that is included in the package. Each purchase will result in receiving the number of speakers indicated here. Please note that some items will have multiple woofers in the same enclosure. For sets of component speakers, this number will refer to the number of sets of speakers (For example, 2 would indicate the purchase includes 2 woofers and 2 tweeters).

    Please refer to the product image and description for further details about the speaker.

    Specials with this Item

    Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!

    Warranty and Return Policy

    Parts Warranty Duration
    1 year
    Labor Warranty Duration
    1 year
    Warranty Provider
    Sonic Electronix

    Summary of Customer Ratings & Reviews

    Rating Distribution

    5 Star
    4 Star
    3 Star
    2 Star
    1 Star

    Average Attribution Rating


    Portland, OR

    Keeps Up!

    October 16, 2009

    This is a good little 4" speaker they're in the back of my camaro sitting next to 2 P3s. I'm waiting on a four channel amp to replace the one running my 4 front speakers so I faded all the sound to the rear of my vehicle. It's just these and the P3s right now and they are doing an alright job keeping up considering they're running off the HU and the P3s are getting 1500rms from an Autotek mean machine 1500. Granted I turned the bass way way down but when My MB Quart PVIs and the new Rockford Power 6.5s get there amp it will be a well balanced setup. Would def recommend these 4s there cheap and you could amp them just don't have to.

    7 of 8 found this helpful

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    demorest georgia

    bang for buck!

    November 26, 2009

    great performance! would highly recommend this speaker.

    5 of 6 found this helpful

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    Longmont, CO


    October 18, 2009

    Great pair of 4in speakers bought them for a 66 catalina and they sounded amazing running off my pioneer deck, very loud clean, and crisp sounding speakers would recommend to anyone looking for some nice 4in speakers.

    5 of 6 found this helpful

    Was this review helpful to you?

    Rockin Jeep

    Burlington Ma

    Rockford Fosgate Power T142C

    June 9, 2009

    Rockford Fosgate is known for quality stereo components and these speakers live up to their name, well built and sound great I run them through an amp they are crystal clear with no distortion.

    5 of 7 found this helpful

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    house springs, MO

    really hits the highs

    July 31, 2007

    I replace the stock 4" speakers in my camaro with these. really made a difference and the highs that it hit sounded amazing. the only downfall to all 4" speakers is they can't handle that much power but sounded great anyway!

    4 of 5 found this helpful

    Was this review helpful to you?

    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 $24.99

    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

    Car Stereo and Speaker Installation Tool Kit

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

    Your Price $20.99

    NVX XTGSP2 Tone Generator and Speaker Polarity Tester

    Perfect for safely troubleshooting and testing audio systems

    Your Price $19.99

    Belva Five Piece Installer's Panel Removal Tool Kit

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

    Your Price $15.99

    Xscorpion WDCR2 Window and Door Clip Remover

    Removes and installs handle and window crank clips.

    Your Price $8.99

    Universal Wire Puller & Grabber

    Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!

    Your Price $7.99

    Encore Universal Four Door Power Door Lock Kit

    Add Power Door Locking and Unlocking while you have the Door Panels removed

    Your Price $29.99

    NVX SDSK2 Speaker Kit

    Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks!

    Your Price $14.99

    Stinger Roadkill Speaker Kit

    Use this to eliminate rattle from your speakers!

    Your Price $10.99

    NVX Sound Dampening Rubber Roller

    Install your Sound Dampening with ease using this heavy duty rubber roller!

    Your Price $7.99

    XTC 4" Round Foam Speaker Baffles

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

    Your Price $7.99

    16-14 AWG Butt Connectors

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

    Your Price $6.99

    16-14 AWG Blue T-Tap Adapters

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

    Your Price $12.99

    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 $13.26

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    Product Summary


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    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: Rockford Fosgate Power T142C