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  1. Home
  2. Planet Audio Store
  3. Discontinued Planet Audio Car Audio & Electronics
  4. Discontinued Planet Audio Car Speakers
  5. Discontinued Planet Audio 4" Speakers

Discontinued Planet Audio 4" Speakers for your 1995 Probe close

Planet Audio 4" car speakers are sure to bring the necessary highs to your vehicle's system.

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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.
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.
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.
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.
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".
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.
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.
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.
Series
Many brands group their products into series or lines of products to help customers know the level of quality (good, better, best for example). You can filter by series and the brand using our guided browsing.

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Planet Audio TRQ422

450W Peak (225W RMS) 4" Torque Series 2-Way Coaxial Car Speakers

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Planet Audio TRQ422

450W Peak (225W RMS) 4" Torque Series 2-Way Coaxial Car Speakers

• 225 watts Peak Each, 112.5 watts RMS Each
• 1" Aluminum Dome Tweeters
• Black Poly Injection cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

No Fit Icon Doesn't fit your Probe

• 225 watts Peak Each, 112.5 watts RMS Each
• 1" Aluminum Dome Tweeters
• Black Poly Injection cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

Planet Audio TQ422

4" 2-Way Anarchy Series Coaxial Car Audio Speakers

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Planet Audio TQ422

4" 2-Way Anarchy Series Coaxial Car Audio Speakers

• Peak Power: 120W
• RMS Power: 60W
• 1" Aluminized Mylar Cone Tweeter
• Mounting Depth: 1-7/8"
• Glossy Black Poly-Injection Cone
• 4 Ohm Impedance
• Custom Tooled Grille

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• Peak Power: 120W
• RMS Power: 60W
• 1" Aluminized Mylar Cone Tweeter
• Mounting Depth: 1-7/8"
• Glossy Black Poly-Injection Cone
• 4 Ohm Impedance
• Custom Tooled Grille

Planet Audio PL43

200W Max (100W RMS) 4" Pulse Series 3-Way Full Range Car Speakers

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Planet Audio PL43

200W Max (100W RMS) 4" Pulse Series 3-Way Full Range Car Speakers

• 100 Watts Max Each, 50 Watts RMS Each
• 0.5", 1" Piezo Tweeters
• 4" Poly Injection Woofer Cone and Rubber Surround
• 4 Ohm Impedance
• Sensitivity: 85dB
• Mounting Depth: 1.55"

No Fit Icon Doesn't fit your Probe

• 100 Watts Max Each, 50 Watts RMS Each
• 0.5", 1" Piezo Tweeters
• 4" Poly Injection Woofer Cone and Rubber Surround
• 4 Ohm Impedance
• Sensitivity: 85dB
• Mounting Depth: 1.55"

Planet Audio SC42

150W 4" 2-Way Sphere Series Coaxial Car Speakers

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Planet Audio SC42

150W 4" 2-Way Sphere Series Coaxial Car Speakers

• 150 Watts Max
• 1/2", hard dome Tweeter
• Mounting Depth: 2"
• Polypropylene Midwoofer Cone
• 4 Ohm Impedance
• Sensitivity: 60dB

No Fit Icon Doesn't fit your Probe

• 150 Watts Max
• 1/2", hard dome Tweeter
• Mounting Depth: 2"
• Polypropylene Midwoofer Cone
• 4 Ohm Impedance
• Sensitivity: 60dB

 
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    Planet Audio 4" Speakers Information

    4" speakers from Planet Audio are an excellent choice for crystal clear music. Replace those factory speakers and quickly notice the difference in the sound and quality of your music and audio. When you are ready for new 4" speakers, think of Planet Audio.
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    We love people and we're ready to help you! See what separates us from our competition.

    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
    We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
    We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
    Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
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    1999 Mazda B4000

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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

    • You see only parts engineered for your exact vehicle
    • You avoid incompatible radios, speakers, or wiring
    • Installation is smoother, faster, and frustration-free
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    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.

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