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Focal Integration IFBMW-S (Open-Box, Damaged Packaging)

Plug & Play Line 2-Way 4" Component BMW Dedicated Kit

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Plug & Play Line 2-Way 4" Component BMW Dedicated Kit

• 2-Way 4" Component BMW Dedicated Kit
• 40 W RMS at 4 ohm
• 100% plug and play (original connectors)
• Quick installation

No Fit Icon Doesn't fit your Courier

• 2-Way 4" Component BMW Dedicated Kit
• 40 W RMS at 4 ohm
• 100% plug and play (original connectors)
• Quick installation

Rockford Fosgate Power T3-BMW2

Power Series 100W Peak (50W RMS) 4" 2-Way Component Car Speakers for select 2006-up BMW

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Power Series 100W Peak (50W RMS) 4" 2-Way Component Car Speakers for select 2006-up BMW

• 100 Watts Max Each, 50 Watts RMS Each
• 1" silk dome tweeter
• 4" Glass Fiber Sandwich cone woofer with Nomex Honeycomb core
• 4 Ohm Impedance
• Sensitivity: 87 dB
• Midwoofer Mounting Depth: 1.66"

No Fit Icon Doesn't fit your Courier

• 100 Watts Max Each, 50 Watts RMS Each
• 1" silk dome tweeter
• 4" Glass Fiber Sandwich cone woofer with Nomex Honeycomb core
• 4 Ohm Impedance
• Sensitivity: 87 dB
• Midwoofer Mounting Depth: 1.66"

Focal Integration IFBMW-C

Plug & Play Line 2-Way 4" Coaxial BMW Dedicated Kit

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Plug & Play Line 2-Way 4" Coaxial BMW Dedicated Kit

• 2-Way 4" Coaxial BMW Dedicated Kit
• 40 W RMS at 4 ohm
• 100% plug and play (original connectors)
• Quick installation

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VIP Product Get $48.00 in rewards to spend later

No Fit Icon Doesn't fit your Courier

• 2-Way 4" Coaxial BMW Dedicated Kit
• 40 W RMS at 4 ohm
• 100% plug and play (original connectors)
• Quick installation

Polk 4-Inch 135W Speakers with Kicker CS Series 4-Inch Coaxial Speakers

270W Peak (90W RMS) 4" DB+ Series 2-way Marine/UTV Certified Coaxial Speakers with IP55 Rating for Car, Powersports or Marine Audio Package

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270W Peak (90W RMS) 4" DB+ Series 2-way Marine/UTV Certified Coaxial Speakers with IP55 Rating for Car, Powersports or Marine Audio Package

• 135 Watts Max Each, 45 Watts RMS Each
• 0.75" shallow tweeter design
• Polypropylene UV tolerant cone
• 4 Ohm Impedance
• Sensitivity: 90dB
• Mounting Depth: 1.79"

No Fit Icon Doesn't fit your Courier

• 135 Watts Max Each, 45 Watts RMS Each
• 0.75" shallow tweeter design
• Polypropylene UV tolerant cone
• 4 Ohm Impedance
• Sensitivity: 90dB
• Mounting Depth: 1.79"

Focal Integration IFBMW-S

Plug & Play Line 2-Way 4" Component BMW Dedicated Kit

Go to item page Right Arrow Icon of Right Arrow

Plug & Play Line 2-Way 4" Component BMW Dedicated Kit

• 2-Way 4" Component BMW Dedicated Kit
• 40 W RMS at 4 ohm
• 100% plug and play (original connectors)
• Quick installation

VIP Star Icon

VIP Product Get $63.00 in rewards to spend later

No Fit Icon Doesn't fit your Courier

• 2-Way 4" Component BMW Dedicated Kit
• 40 W RMS at 4 ohm
• 100% plug and play (original connectors)
• Quick installation

(4) Kicker 44KSC404 KSC404 4" 300 Watt 2-Way Car Stereo Speakers

2 Pairs (4 Total) 300W Peak (150W RMS) 4" KS Series 2-Way Coaxial Package

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2 Pairs (4 Total) 300W Peak (150W RMS) 4" KS Series 2-Way Coaxial Package

• 150 Watts Max Each, 75 Watts RMSEach
• 1/2" Silk Balanced Dome Tweeter
• Polypropylene Cone
• 4 Ohm Impedance
• Sensitivity: 88 dB
• Mounting Depth: 1-13/16"

No Fit Icon Doesn't fit your Courier

• 150 Watts Max Each, 75 Watts RMSEach
• 1/2" Silk Balanced Dome Tweeter
• Polypropylene Cone
• 4 Ohm Impedance
• Sensitivity: 88 dB
• Mounting Depth: 1-13/16"

(4) KICKER 43CSC44 4" 600 Watt 4-Ohm 2-Way Car Audio Coaxial Speakers

2 Pairs (4 Total) 300W Peak (100W RMS) 4" CS Series 2-Way Coaxial Package

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2 Pairs (4 Total) 300W Peak (100W RMS) 4" CS Series 2-Way Coaxial Package

• 150 Watts Max Each, 50 Watts RMS Each
• 1/2" Polyether imide (PEI) balanced dome tweeter
• Polypropylene mid-woofer cone material
• 4 Ohm Impedance
• Sensitivity: 88dB
• Mounting Depth: 1-13/16"

No Fit Icon Doesn't fit your Courier

• 150 Watts Max Each, 50 Watts RMS Each
• 1/2" Polyether imide (PEI) balanced dome tweeter
• Polypropylene mid-woofer cone material
• 4 Ohm Impedance
• Sensitivity: 88dB
• Mounting Depth: 1-13/16"

Diamond Audio VSP4BMW - Open Box, Great

BMW® Specific 2-Way 4” Component Speaker Set

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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 Courier

• 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"

    Clear all

    All About Discontinued 4" Speakers


    4” Car Speakers

    4" car speakers, also known as 4" coaxial speakers, are designed to fit into small spaces in your vehicle, such as the doors or dashboard. Marine and power sport vehicles commonly use 4" speakers because of their durability and reliability in harsh environments. As far as factory-installed car speakers go, the maximum tweeter size is 4 inches. They can produce highs, mids, and lows, allowing for crisp vocals and a thumping bass.

    4" car speakers typically have two components: a woofer and a tweeter. The woofer produces low-frequency sounds, such as bass and drums. At the same time, the tweeter handles high-frequency sounds, like vocals and cymbals. Some 4" speakers have a built-in crossover network that divides the audio signal and sends the appropriate frequencies to the woofer and tweeter.

    Upgrade your car's sound system with these convenient and affordable 4" car speakers. Though diminutive in size, they can produce high-quality audio with crisp vocals. Sonic Electronix carries a wide variety of aftermarket 4-inch automobile speakers from industry-leading brands, including NVX, Kicker, JL Audio, JBL, Rockford-Fosgate, Alpine, Kenwood, Cerwin-Vega, and many more.

    4" Speakers Frequently Asked Questions (FAQ)
    4" speakers, also known as 4-inch speakers, are compact audio drivers designed to reproduce mid-range frequencies in car audio systems. They are a common speaker size found in various vehicles, especially in the dashboard or door panels. 4" speakers are often used as factory or OEM speakers due to their small size and ability to fit in tight spaces. These speakers play a crucial role in delivering clear vocals and mid-range frequencies, contributing to a balanced soundstage. While they may not produce deep bass like larger subwoofers, 4" speakers are essential for achieving a well-rounded and enjoyable listening experience.
    Upgrading to aftermarket 4" speakers offers several advantages over factory speakers. Aftermarket speakers typically feature higher-quality materials and construction, resulting in improved sound clarity and accuracy. The use of premium components, such as polypropylene or mica-infused cones and silk or Mylar dome tweeters, enhances the overall sound performance. Aftermarket 4" speakers can handle more power, reducing distortion at higher volumes and delivering a cleaner sound. Additionally, some aftermarket 4" speakers come with swivel or pivot tweeters, allowing you to adjust the sound direction for better sound staging. Upgrading to aftermarket speakers also allows for customization, as you can choose speakers that match your preferred sound signature. Overall, the upgrade to aftermarket 4" speakers significantly enhances the audio quality and listening pleasure in your car.
    To determine if 4" speakers are compatible with your vehicle, you'll need to check the available space for speaker installation. Measure the diameter and mounting depth of the existing speakers or speaker locations in your car's dashboard or door panels. Most 4" speakers have standardized measurements, but some vehicles may have unique speaker mounting requirements. If your car came with factory-installed 4" speakers, it's usually a straightforward replacement with aftermarket 4" speakers. However, some vehicles may have non-standard speaker sizes or mounting configurations, requiring additional adapters or modification for a proper fit. To ensure compatibility and a hassle-free installation, consider consulting a car audio professional or using an online fitment guide.
    While 4" speakers can reproduce mid-range frequencies with clarity, they are not designed to produce deep bass like larger subwoofers or woofers. Their compact size limits their ability to move a significant volume of air required for low-frequency reproduction. However, many 4" aftermarket speakers are designed with improved bass response compared to factory speakers. They use advanced engineering and materials to optimize the mid-bass performance, providing a more balanced sound. Additionally, if you seek enhanced bass, consider pairing 4" speakers with a subwoofer or a larger speaker system. The combination of 4" speakers for mid-range and high frequencies, along with a dedicated subwoofer for low frequencies, can result in a more robust and satisfying audio experience with full-range sound reproduction.
    The installation of 4" speakers can vary depending on your car's make and model, as well as your level of experience with car audio installations. If your vehicle has straightforward and accessible speaker locations for 4" speakers, you may be able to handle the installation yourself with the right tools and know-how. Many aftermarket 4" speakers come with installation instructions and mounting accessories, making the process more manageable. However, some vehicles may have more challenging installation requirements, such as custom mounting brackets or adapters. If you are unsure about the installation process or lack experience, it's advisable to seek professional installation. Car audio experts can ensure a proper and secure fit for optimal sound performance and prevent any damage to your vehicle's interior. Professional installation also provides peace of mind knowing that your new 4" speakers are set up correctly for the best audio experience.

    If you're searching for exceptional audio upgrades for your car, look no further. Our extensive collection of high-performance 4” speakers guarantees that you'll find only the best products to elevate your in-car listening experience. Don't settle for mediocre sound quality - explore our range now and discover the perfect 4” speakers that will transform your drive into a concert-like experience!

    Advantages of 4” Speakers:

    Despite their compact size, 4” speakers offer a multitude of advantages that make them an ideal choice for car audio enthusiasts. One of the key benefits of these speakers is their versatility in installation. Due to their smaller footprint, they can be easily mounted in various locations within your vehicle, making them suitable for cars with limited space for speaker placement. Additionally, their compact design allows them to integrate seamlessly into the existing audio system.

    4” speakers are also known for their excellent mid-range performance, which is crucial for reproducing vocals and instruments with exceptional clarity and detail. By adding 4” speakers to your setup, you can enhance the overall sound quality and fill in the soundstage for a more immersive listening experience.

    At Sonic Electronix, we take pride in offering a wide selection of premium 4” speakers from top-notch brands in the industry. Our team of audio experts is ready to assist you in finding the best 4” speakers that match your preferences and vehicle requirements. Whether you seek improved vocal clarity or a well-balanced soundstage, we have the perfect 4” speakers to suit your audio aspirations.

    For personalized guidance and expert advice, don't hesitate to contact our knowledgeable staff at 1-502-200-8010. Our audio specialists are dedicated to helping you create the ultimate car audio setup that caters to your unique audio preferences and driving style.

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    1979 Ford Courier

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    1989 Ford Probe

    2005 Mazda MX-5 Miata

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    1978 BMW 320i

    2010 Jeep Compass

    2003 Ford Excursion

    2018 BMW X5

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    • Vehicle produced after 2005: Inside driver's side door
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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
    • You get the correct accessories the first time

    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.