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

Discontinued 4" Speakers for your 2008 Expedition close

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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.
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You are currently viewing discontinued products.

Rockford Fosgate Punch P142 (Open Box, Like New)

120W Peak (60W RMS) 4" Punch Series 2-way 4-ohm Coaxial Car Speakers

No picture DISCONTINUED
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Rockford Fosgate Punch P142 (Open Box, Like New)

120W Peak (60W RMS) 4" Punch Series 2-way 4-ohm Coaxial Car Speakers

• 60 watts Peak Each, 30 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome tweeters
• Injection-molded mineral-filled polypropylene cone material with VAST technology
• Impedance: 4 ohm
• Sensitivity: 86.5 dB

No Fit Icon Doesn't fit your Expedition

11

• 60 watts Peak Each, 30 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome tweeters
• Injection-molded mineral-filled polypropylene cone material with VAST technology
• Impedance: 4 ohm
• Sensitivity: 86.5 dB

Rockford Fosgate P142 - New (Damaged Packaging, Product A+)

120W MAX (60W RMS) 4" Punch Series 2-Way Coaxial Car Speakers

P142 big DISCONTINUED
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Rockford Fosgate P142 - New (Damaged Packaging, Product A+)

120W MAX (60W RMS) 4" Punch Series 2-Way Coaxial Car Speakers

• 60 watts Peak Each, 30 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome Tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86.5 dB

No Fit Icon Doesn't fit your Expedition

11

• 60 watts Peak Each, 30 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome Tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86.5 dB

JL Audio C1-400x - New (Damaged Packaging, Product A+)

210W Max (70W RMS) 4" C1 Series 2-Way Coaxial Car Speakers

C1-400x big DISCONTINUED
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JL Audio C1-400x - New (Damaged Packaging, Product A+)

210W Max (70W RMS) 4" C1 Series 2-Way Coaxial Car Speakers

• 105 Watts Max Each, 35 Watts RMS Each
• .75" Edge-Driven Aluminum Dome Tweeter
• Mica-Filled Injection-Molded Polypropylene Cone
• 4 Ohm Impedance
• Sensitivity: 84.5 dB
• Mounting Depth: 1.81"

No Fit Icon Doesn't fit your Expedition

8

• 105 Watts Max Each, 35 Watts RMS Each
• .75" Edge-Driven Aluminum Dome Tweeter
• Mica-Filled Injection-Molded Polypropylene Cone
• 4 Ohm Impedance
• Sensitivity: 84.5 dB
• Mounting Depth: 1.81"

Rockford Fosgate Prime R14X2 (Open Box, Like New)

120W Peak (60W RMS) 4” Prime Series 2-way 4-ohm Coaxial Car Speaker

R14X2 big DISCONTINUED
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Rockford Fosgate Prime R14X2 (Open Box, Like New)

120W Peak (60W RMS) 4” Prime Series 2-way 4-ohm Coaxial Car Speaker

• 60 watts Peak Each, 30 watts RMS Each
• 1/2" Silk Dome tweeters
• Vacuum polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

No Fit Icon Doesn't fit your Expedition

14

• 60 watts Peak Each, 30 watts RMS Each
• 1/2" Silk Dome tweeters
• Vacuum polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

Rockford Fosgate Prime R14X2 - New (Damaged Packaging, Product A+)

120W Peak (60W RMS) 4” Prime Series 2-way Coaxial Car Speaker

R14X2 big DISCONTINUED
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Rockford Fosgate Prime R14X2 - New (Damaged Packaging, Product A+)

120W Peak (60W RMS) 4” Prime Series 2-way Coaxial Car Speaker

• 60 watts Peak Each, 30 watts RMS Each
• 1/2" Silk Dome Tweeters
• Vacuum Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

No Fit Icon Doesn't fit your Expedition

14

• 60 watts Peak Each, 30 watts RMS Each
• 1/2" Silk Dome Tweeters
• Vacuum Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

Hertz DCX100.3 - New (Damaged Packaging, Product A+)

120W Peak (60W RMS) 4" Dieci Series 2-Way Coaxial Car Speakers

DCX 100.3 big DISCONTINUED
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Hertz DCX100.3 - New (Damaged Packaging, Product A+)

120W Peak (60W RMS) 4" Dieci Series 2-Way Coaxial Car Speakers

• 30 Watts Max Each, 15 Watts RMS Each
• Water-repellent pressed paper cone material
• PEI dome tweeter
• 4 Ohm Impedance
• Sensitivity: 92 dB
• Mounting Depth: 1-3/4"

No Fit Icon Doesn't fit your Expedition

2

• 30 Watts Max Each, 15 Watts RMS Each
• Water-repellent pressed paper cone material
• PEI dome tweeter
• 4 Ohm Impedance
• Sensitivity: 92 dB
• Mounting Depth: 1-3/4"

Hertz DCX 100.3 (Open-box, Like New)

120W Peak (60W RMS) 4" Dieci Series 2-way 4-ohm Coaxial Car Speakers

DCX 100.3 big DISCONTINUED
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Hertz DCX 100.3 (Open-box, Like New)

120W Peak (60W RMS) 4" Dieci Series 2-way 4-ohm Coaxial Car Speakers

• 60 watts Peak Each, 30 watts RMS Each
• 0.59" PEI (Polyetherimide) Dome tweeters
• Water-repellent Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

No Fit Icon Doesn't fit your Expedition

2

• 60 watts Peak Each, 30 watts RMS Each
• 0.59" PEI (Polyetherimide) Dome tweeters
• Water-repellent Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

JL Audio C1-400x (Open Box, Like New)

100W Peak (70W RMS) 4" C1 Series 2-Way 4-ohm Coaxial Car Speakers

C1-400x big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

JL Audio C1-400x (Open Box, Like New)

100W Peak (70W RMS) 4" C1 Series 2-Way 4-ohm Coaxial Car Speakers

• 50 watts Peak Each, 35 watts RMS Each
• 0.75" Silk-suspended aluminum Edge-Driven Dome Tweeters
• Mica Injected Polypropylene - MIPP cone material
• Impedance: 4 ohm
• Sensitivity: 87.5 dB

No Fit Icon Doesn't fit your Expedition

8

• 50 watts Peak Each, 35 watts RMS Each
• 0.75" Silk-suspended aluminum Edge-Driven Dome Tweeters
• Mica Injected Polypropylene - MIPP cone material
• Impedance: 4 ohm
• Sensitivity: 87.5 dB

Hertz CX 100 (Open Box, Great)

240W Peak (80W RMS) 4" Cento Series 2-way 4-ohm Coaxial Car Speakers

CX 100 big DISCONTINUED
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Hertz CX 100 (Open Box, Great)

240W Peak (80W RMS) 4" Cento Series 2-way 4-ohm Coaxial Car Speakers

• 120 watts Peak Each, 40 watts RMS Each
• 0.9" Soft Tetolon Dome Tweeters
• Semi-Pressed Paper-Mica cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

No Fit Icon Doesn't fit your Expedition

4

• 120 watts Peak Each, 40 watts RMS Each
• 0.9" Soft Tetolon Dome Tweeters
• Semi-Pressed Paper-Mica cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

Diamond Audio VSP4BMW - Open Box, Great

BMW® Specific 2-Way 4” Component Speaker Set

VSP4BMW big DISCONTINUED
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Diamond Audio VSP4BMW - Open Box, Great

BMW® Specific 2-Way 4” Component Speaker Set

• 80 Watts Max Each, 40 Watts RMS Each
• (25mm Silk Dome Tweeters
• Glass Fiber Reinforced Cone
• 4 Ohm Impedance
• Sensitivity: 85.6 dB
• Mounting Depth: 1.94"

No Fit Icon Doesn't fit your Expedition

• 80 Watts Max Each, 40 Watts RMS Each
• (25mm Silk Dome Tweeters
• Glass Fiber Reinforced Cone
• 4 Ohm Impedance
• Sensitivity: 85.6 dB
• Mounting Depth: 1.94"

Hertz CX 100 - New (Damaged Packaging, Product A+)

240W Peak (80W RMS) 4" Cento Series 2-Way Coaxial Car Speakers

CX 100 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Hertz CX 100 - New (Damaged Packaging, Product A+)

240W Peak (80W RMS) 4" Cento Series 2-Way Coaxial Car Speakers

• 120 watts Peak Each, 40 watts RMS Each
• 15/16 Tetolon Dome Tweeters
• Semi-Pressed Paper + Mica cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

No Fit Icon Doesn't fit your Expedition

4

• 120 watts Peak Each, 40 watts RMS Each
• 15/16 Tetolon Dome Tweeters
• Semi-Pressed Paper + Mica cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

JL Audio C2-400x (Open Box, Like New)

100W Peak (70W RMS) 4” Evolution C2 Series 2-way 4-ohm Coaxial Car Speakers

C2-400X big DISCONTINUED
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JL Audio C2-400x (Open Box, Like New)

100W Peak (70W RMS) 4” Evolution C2 Series 2-way 4-ohm Coaxial Car Speakers

• 50 watts Peak Each, 35 watts RMS Each
• 0.75" Silk Dome Tweeters
• 2 speaker grilles included
• Mica Injected Polypropylene - MIPP cone material
• Impedance: 4 ohm
• Sensitivity: 87.5 dB

No Fit Icon Doesn't fit your Expedition

9

• 50 watts Peak Each, 35 watts RMS Each
• 0.75" Silk Dome Tweeters
• 2 speaker grilles included
• Mica Injected Polypropylene - MIPP cone material
• Impedance: 4 ohm
• Sensitivity: 87.5 dB

Hertz CX 100 (Open-box, Like New)

240W Peak (80W RMS) 4" Cento Series 2-way 4-ohm Coaxial Car Speakers

CX 100 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Hertz CX 100 (Open-box, Like New)

240W Peak (80W RMS) 4" Cento Series 2-way 4-ohm Coaxial Car Speakers

• 120 watts Peak Each, 40 watts RMS Each
• 0.9" Soft Tetolon Dome Tweeters
• Semi-Pressed Paper-Mica cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

No Fit Icon Doesn't fit your Expedition

4

• 120 watts Peak Each, 40 watts RMS Each
• 0.9" Soft Tetolon Dome Tweeters
• Semi-Pressed Paper-Mica cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

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