Factory car speakers are infamous for being underwhelming. Built from cheap paper cones and powered by low-output factory head units, they muddy your favorite tracks and distort at the slightest hint of volume. If you want crisp highs, punchy mid-bass, and clear vocals without breaking the bank, upgrading to high-quality aftermarket drivers is the single most effective step you can take. Among the most popular factory-replacement options on the market, the kicker 46csc464 stands out as a top-tier choice for vehicles requiring 4x6-inch speakers.

But simply swapping a single pair of speakers is only the beginning. To truly transform your vehicle's acoustic environment, you need to understand how different speakers, amplifiers, line output converters, and subwoofers work together to build a cohesive audio experience. In this ultimate guide, we will review the kicker 46csc464, explore the entire Kicker CS and premium KS series lineups, and show you how to design a high-performance system from scratch.

1. Unpacking the Kicker 46CSC464: Specs, Design, and Performance

The kicker 46csc464 is a 4x6-inch, 2-way coaxial speaker designed specifically to replace factory dashboard, pillar, or door speakers in older vehicles and compact trucks (such as classic Chevrolet, GMC, and Dodge models). It delivers a massive leap in clarity, depth, and overall volume compared to stock paper drivers.

Key Technical Specifications

• Power Handling: 50 Watts RMS (150 Watts Peak per speaker)
• Impedance: 4-Ohm
• Frequency Response: 50 Hz – 20,000 Hz
• Sensitivity: 88 dB (1W / 1m)
• Tweeter: 1/2-inch PEI (Polyetherimide) balanced dome
• Woofer: Polypropylene cone with UV-treated polyester foam surround
• Mounting Depth: 1-11/16 inches (Top Mount)

Why the Design Matters

When evaluating budget car speakers, durability is just as important as sound quality. The construction of the kicker 46csc464 focuses on long-lasting performance in harsh automotive environments. The UV-treated foam surround ensures that prolonged exposure to direct sunlight—which is common for dash-mounted setups—won't dry out, rot, or crack the speaker cone over time.

Additionally, Kicker incorporates Extended Voice Coil (EVC) technology into the woofer motor structure. This design allows for precise linear excursion, meaning the speaker cone can move further and more accurately. This results in tighter, cleaner mid-bass response and prevents the voice coil from rubbing or overheating when you turn up the volume.

Another crucial design feature is the "zero-protrusion" tweeter. Many budget 2-way coaxial speakers feature tweeters that stick out past the mounting basket. This protrusion can prevent factory speaker grilles from fitting properly, forcing you to modify your vehicle's interior. Kicker resolved this by utilizing a low-profile PEI dome tweeter that sits perfectly flush with the basket edge, allowing for a seamless, factory-style installation.

The Sound Signature

The kicker 46csc464 excels in high-frequency detail and vocal clarity. Because of its compact 4x6-inch size, it is physically incapable of producing deep, chest-thumping bass—no speaker of this size can. However, the mid-bass response is incredibly tight and clean, making it a perfect vocal and instrumental reproducer. It acts as an excellent front soundstage anchor, handling crucial frequencies that bring life to vocals, acoustic guitars, and brass instruments.

2. Navigating the CS-Series Lineup: Coaxial vs. Component Speakers

While the kicker 46csc464 is the perfect solution for 4x6-inch slots, Kicker’s CS Series offers a wide array of sizes and configurations to cover every speaker location in your car, SUV, or truck. Upgrading all your factory speakers to the same acoustic family creates a coherent sound signature where frequencies transition smoothly throughout the cabin.

Coaxial CS-Series Speakers

Coaxial speakers place the tweeter directly on a post in the center of the woofer cone. This single-unit design makes installation exceptionally easy, as they slide directly into factory mounting holes.

• kicker 46csc654 (6.5-Inch Coaxial): This is the most popular size for modern vehicle front and rear doors. Handling up to 100 Watts RMS, the 46csc654 features a larger woofer surface area that extends the low-end frequency response down to 40 Hz, adding much-needed depth to drums and basslines.
• kicker 46csc54 (5.25-Inch Coaxial): Perfect for older vehicles or rear pods, this 5.25-inch speaker provides excellent mid-bass punch in a slightly smaller footprint.
• kicker 46csc354 (3.5-Inch Coaxial) & kicker 46csc44 (4-Inch Coaxial): These highly compact drivers are ideal for shallow dashboard mounts or rear pillar applications where space is extremely tight.
• kicker 46csc674 (6.75-Inch Coaxial): Designed for oversized door speaker locations often found in Japanese and European imports.
• kicker 46csc684 (6x8-Inch Coaxial): A specialized oval speaker built to fit standard Ford and Mazda door openings.
• kicker 46csc6934 (6x9-Inch 3-Way Coaxial): This massive oval speaker features a dedicated 2-inch polypropylene midrange driver in addition to a 1/2-inch tweeter. It is highly recommended for rear decks and front doors of trucks, delivering massive volume and excellent vocal separation.

Component CS-Series Speakers

If your vehicle features separate factory tweeter pods located on the A-pillars, upper doors, or dashboard, a coaxial speaker might not be the best choice. Instead, you should opt for a component system.

The kicker 46css654 is a 6.5-inch component speaker system that separates the woofer and the tweeter into distinct units. It includes an external 12dB/octave passive crossover network to filter precise frequencies to each driver. By mounting the woofers in the lower doors and placing the tweeters up higher on the dash or A-pillars, you raise the overall "soundstage". This makes it feel as though the vocalist is singing directly in front of you on the dashboard, rather than down at your ankles.

3. Step Up to Audiophile Quality: Kicker CS Series vs. KS Series

As you plan your car audio upgrade, you may wonder if you should stick with the budget-friendly CS Series or step up to Kicker's premium KS Series. Understanding the structural differences between these lines is crucial for making the right purchase.

While the CS series (including the kicker 46csc464) is engineered to deliver remarkable performance at an accessible price point, the KS series is designed for audiophiles looking for smoother high-frequency transitions and warmer midrange dynamics.

Core Differences Explained

Tweeter Composition

PEI tweeters, like those in the CS Series, are made of a lightweight, rigid polymer. They excel at producing sharp, crisp high frequencies that can easily cut through loud road noise or rushing wind when you drive with the windows down. However, they can sometimes sound slightly harsh or "bright" at maximum volumes.

Conversely, silk dome tweeters, featured in KS Series models like the kicker 47ksc6904 (6x9-inch coaxial) and the kicker 47ksc404 (4-inch coaxial), offer a much smoother, natural, and warmer high-end response. This reduces ear fatigue during long road trips and provides a more faithful reproduction of acoustic and vocal recordings.

Woofer Surround

The polyester foam surrounds on the CS series are highly flexible and require very little power to move, making them exceptionally efficient. The KS series utilizes synthetic rubber surrounds. Rubber is stiffer and offers better control over the woofer cone during intense excursions, allowing the speaker to handle higher continuous wattage and deliver tighter mid-bass control when amplified.

High-End Components

For those seeking the absolute pinnacle of Kicker's speaker technology, the kicker 47kss6904 6x9-inch component system represents a massive step up. It features advanced crossovers, high-power silk tweeters, and heavy-duty voice coils designed for high-end multi-channel amplifiers.

The Verdict: If you are running your speakers directly off a stock head unit or a budget aftermarket receiver, the CS Series (e.g., kicker 46csc464) offers the best value and performance. If you plan to install a high-power external amplifier and prefer a smooth, natural sound, investing in the KS Series is well worth the upgrade.

4. Powering Your Upgrade: Amplifiers, LOCs, and Integration

Even the best speakers will underperform if they are starved of clean, adequate power. Factory head units typically output only 10 to 15 Watts RMS per channel, and they distort heavily at high volumes. Feeding a speaker like the kicker 46csc464 its full 50 Watts RMS with an aftermarket amplifier will lower distortion, clean up vocals, and dramatically increase mid-bass punch.

Integrating with a Factory Radio

If you want to keep your factory touchscreen or dashboard radio, adding an amplifier can be tricky. You must convert the high-level speaker signals coming out of the factory radio into low-level RCA signals that your new amplifier can accept. This is where a high-quality line output converter (LOC) is required.

The kicker 46kisloc2 is a premium, 2-channel passive line output converter designed specifically to integrate with modern "smart" vehicle stereos. Unlike cheap, generic LOCs that use bulky internal coils (inductors) that roll off your bass and introduce muddy interference, the KISLOC2 uses a modern, inductor-free circuit design that ensures a flat 20Hz to 20kHz frequency response.

Key features of the kicker 46kisloc2 include:

• DC-Offset Signal Sensing: It automatically detects when your factory radio is turned on and instantly generates a robust 12-volt remote turn-on output to switch your amplifiers on. This saves you from having to hunt down a switched accessory wire under your steering column or fuse box.
• Smart Radio Compatibility: It applies a precise 60-ohm load to the speaker output lines. This tricks modern factory radios (which have open-circuit protection) into thinking speakers are still connected, preventing them from shutting down or throwing error codes.

Adding a Subwoofer Amp

If you want a dedicated amplifier for your low-end bass, you need a high-efficiency mono block. The kicker 46cxa4001 (often referred to as the CXA400.1) is a compact, Class-D mono subwoofer amplifier that punches far above its weight class.

It delivers:

• 150 Watts RMS at 4-Ohms
• 300 Watts RMS at 2-Ohms
• 400 Watts RMS at 1-Ohm

Because of Kicker’s FIT+™ (Fail-safe Integration Technology-PLUS), the kicker 46cxa4001 can accept up to 40 Volts of speaker-level input directly into its RCA ports using simple wire-to-RCA adapters. This means that if you are only adding a subwoofer to your system, you can bypass an external LOC entirely—the amp will tap directly into your factory rear speaker wires, reject alternator noise, and turn on automatically.

5. Completing the Sonic Spectrum: Adding Serious Bass

No matter how high-quality your new dashboard kicker 46csc464 speakers or door-mounted kicker 46csc654 speakers are, they simply do not have the cone area to reproduce deep, low-frequency bass. To round out your audio system, you must add a dedicated subwoofer.

If you drive a truck, a compact hatchback, a Jeep, or simply want to keep your valuable cargo space, a massive custom subwoofer box is out of the question. For these applications, the kicker 46cwtb104 is an exceptional space-saving solution.

Inside the Kicker 46CWTB104 Tube Subwoofer

The kicker 46cwtb104 is a weather-resistant, 10-inch tube subwoofer system designed to fit into tight spaces without sacrificing raw output.

What makes this tube subwoofer unique is its dual-cone design:

1. Active Subwoofer: A high-performance 10-inch CompR subwoofer on one end of the tube.
2. Passive Radiator: A secondary, passive reflex cone mounted on the opposite end.

In a standard sealed enclosure, the air inside acts like a spring, limiting how far the woofer cone can move. In a ported enclosure, you get more volume, but the port tube occupies a lot of physical space and can create distracting "port noise" (huffing). The passive radiator in the kicker 46cwtb104 moves in harmony with the active sub, functioning exactly like a port but using physical cone surface area rather than an open air column. This gives you the high output and deep extension of a ported box in an incredibly compact, highly durable ABS plastic enclosure.

Pairing the Amp and Sub

Because the kicker 46cwtb104 is a 4-ohm enclosure rated for 400 Watts RMS, it pairs beautifully with the kicker 46cxa4001 mono amplifier. The CXA400.1 will deliver a clean, highly efficient 150 Watts RMS at 4-Ohms. This setup provides a well-balanced, musical bass response that easily blends with your CS-Series door and dash speakers.

If you want to extract every ounce of power from the kicker 46cxa4001, you can opt for Kicker's 2-ohm or dual-voice-coil versions of their enclosures, which allows the amplifier to run down to 2-Ohms or 1-Ohm, delivering a massive 300 to 400 Watts RMS directly to your subwoofer.

6. Frequently Asked Questions (FAQ)

Can I run the Kicker 46CSC464 directly off my factory radio?

Yes! The kicker 46csc464 is highly efficient with an 88 dB sensitivity rating. It is designed to sound significantly cleaner, louder, and more detailed than factory speakers even when powered by low-wattage stock head units.

What are the best settings for Kicker CS Series speakers?

If you are running your speakers off an aftermarket radio or amplifier, it is highly recommended to set a High-Pass Filter (HPF) on small speakers like the 46CSC464. Setting your HPF between 80 Hz and 100 Hz prevents these small speakers from attempting to reproduce deep bass notes. This eliminates distortion at high volumes, protects the voice coils, and allows your dedicated subwoofer to handle the low end.

Do I really need the Kicker 46KISLOC2 line output converter?

If you are keeping your factory radio and adding an amplifier that does not have high-level signal inputs, yes. The kicker 46kisloc2 is also highly recommended because it generates a 12V remote turn-on signal automatically and ensures a perfectly flat frequency response, preserving your music's bass and high-end clarity.

Can I mix Kicker CS and KS series speakers in my vehicle?

Absolutely. A very common setup is to install warmer, smooth-sounding KS Series speakers (like the kicker 47ksc404) in the dashboard or front doors where they are closer to your ears, and use high-efficiency CS Series speakers (like the kicker 46csc654) in the rear doors for clean ambient fill.

Is the Kicker 46CWTB104 waterproof?

It is weather-resistant. The thick ABS plastic construction and sealed terminal connections make it highly resistant to splashes, dust, and moisture. It is highly popular for open-cabin vehicles like Jeeps, UTVs, boats, and truck beds, though it should not be completely submerged in water.

Conclusion

Building an excellent car audio system is all about choosing matched components that work in harmony. Swapping out your dull, muddy factory dashboard drivers for the kicker 46csc464 establishes a crisp, energetic front soundstage. Upgrading your side doors with matching kicker 46csc654 coaxial speakers or kicker 46css654 components ensures full, uninterrupted midrange and high frequencies throughout the cabin.

By integrating these speakers with the intelligent kicker 46kisloc2 line output converter, you can maintain your factory dashboard controls while feeding clean audio signals to your gear. Finally, supplementing the low end with the space-saving kicker 46cwtb104 tube subwoofer powered by the compact kicker 46cxa4001 mono amp delivers the deep, emotional impact that makes every drive feel like a live concert. With Kicker's versatile lineup, a premium audio experience is well within reach for any budget.