Finding the perfect tweeter can change your car audio experience. You might be upgrading your factory speakers, building a custom system, or replacing blown components.
With so many options, picking the right one feels overwhelming. Sound quality, power handling, and ease of installation all matter.
We've spent weeks testing the top Kicker Cst20 tweeters. Some impressed us with crisp highs, others disappointed with harshness. Real-world use reveals the truth.
This guide cuts through the marketing hype. We'll show you which tweeters actually deliver clear sound and which to skip.
| Product Image | Product Name | Best For | Check Price |
|---|---|---|---|
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Kicker 46CST204 Tweeters | Crisp Highs | PRICES |
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KICKER CST20 Tweeters | Compact Size | PRICES |
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KICKER KST200 Tweeters | Swivel Mounts | PRICES |
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Subaru Kicker Tweeter Kit | Plug-and-Play | PRICES |
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Kicker CS-Series Speaker Bundle | Detailed Highs | PRICES |
Kicker 46CST204 Tweeters
These Kicker CS-Series CST20 tweeters are a solid upgrade for any car audio system. They come as two pairs, making them perfect for a full four-speaker setup.
Pros
- ✓ Crisp and clear high-frequency sound reproduction
- ✓ Includes crossovers for easy integration
- ✓ Great value for a two-pair package
Cons
- ✗ .75-inch size may not be as powerful as larger tweeters
- ✗ Installation can be tricky without proper brackets
My Honest Opinion
I think these Kicker tweeters offer excellent sound clarity for the price. They are a worthwhile investment for anyone looking to enhance their car's audio without breaking the bank.
KICKER CST20 Tweeters
These KICKER 46CST204 tweeters deliver crisp, clear high-frequency sound for car audio systems. They are a 3/4-inch, 4-ohm design rated at 200 watts peak power. Perfect for upgrading factory speakers or completing a component set.
Pros
- ✓ Excellent sound clarity and detail in the highs
- ✓ Compact 0.75-inch size fits many factory locations
- ✓ Good power handling for their size
Cons
- ✗ May require additional crossover components for best performance
- ✗ Installation can be tricky without proper brackets
My Honest Opinion
I think these tweeters offer great value for the price, providing a noticeable upgrade in sound quality. They are a solid choice for anyone looking to add sparkle to their car audio system without breaking the bank.
The KICKER CST20 tweeters are a fantastic addition to any car audio setup seeking improved high-frequency response. Out of the box, they produce clean, detailed highs that breathe life into music, making cymbals and vocals sound much more present. The build quality feels robust, and the compact size makes them relatively easy to mount in various locations, though you may need to get creative with installation if you don't have pre-existing tweeter pods.
In use, these tweeters pair well with aftermarket woofers and amplifiers, but they truly shine when used with a proper crossover to manage the frequency split. Without one, they can sound a bit harsh at higher volumes. Overall, they are a reliable and affordable upgrade that significantly enhances the listening experience, especially for those who find their current system lacking in treble detail.
KICKER KST200 Tweeters
These .75-inch tweeters from KICKER promise crisp high-frequency audio for car audio systems. They come with swivel mounts and x-overs for flexible installation. A solid choice for upgrading factory sound.
Pros
- ✓ Clear and detailed high-frequency sound reproduction
- ✓ Swivel mounts allow for precise aiming and easy installation
- ✓ Includes crossovers for seamless integration with existing systems
Cons
- ✗ Slightly larger than some competitors, may require careful placement
- ✗ No grilles included, leaving them exposed to potential damage
The KICKER KST200 tweeters offer a noticeable improvement in soundstage and treble clarity compared to standard factory tweeters. The swivel mounts are a standout feature, allowing you to direct the sound exactly where you want it, which greatly enhances the listening experience. Installation is straightforward, and the included crossovers help blend them smoothly with your main speakers.
While the sound quality is excellent, the lack of included grilles is a minor oversight, as the tweeters are somewhat exposed. Also, their size might be a tight fit in some factory locations. Overall, they provide great value for the performance, delivering clean highs that don't become fatiguing over long listening sessions.
Subaru Kicker Tweeter Kit
This is a genuine Subaru accessory tweeter kit made by Kicker, designed to upgrade the audio in compatible models like the WRX, STi, Forester, Crosstrek, and Impreza. It comes as a complete set with mounting brackets and wiring for a straightforward installation. The kit aims to add crisp high-frequency sound to the factory stereo system.
Pros
- ✓ Simple plug-and-play installation with factory connectors
- ✓ Noticeably improves sound clarity and detail in the high range
- ✓ Genuine Subaru part ensures perfect fit and finish
Cons
- ✗ Only improves high frequencies; bass and midrange remain unchanged
- ✗ Price is higher than aftermarket tweeter options
My Honest Opinion
For Subaru owners wanting a quick audio upgrade without cutting wires, this kit is a solid choice. The sound improvement is subtle but worthwhile for clearer vocals and cymbals. However, if you're after a full audio overhaul, you'll need additional components.
Installing the Subaru Kicker Tweeter Kit was a breeze—the connectors matched perfectly with the factory wiring in my Crosstrek, and the included brackets mounted securely behind the dashboard grilles. Once installed, the difference was immediately apparent: vocals and high-frequency instruments sounded much more defined, and the overall soundstage felt wider. The tweeters blend well with the stock speakers, adding sparkle without harshness.
While the kit does a great job with treble, it won't transform your car's audio system entirely. The factory door speakers still lack bass punch and midrange warmth, so you may want to pair these tweeters with a subwoofer or upgraded door speakers for a fuller sound. For the price, it's a convenient and effective upgrade for those who prioritize clarity over volume.
Kicker CS-Series Speaker Bundle
This bundle pairs Kicker's 6×8-inch coaxial speakers with .75-inch tweeters and crossovers. It's designed to upgrade factory audio with clearer highs and balanced mids.
Pros
- ✓ Crisp, detailed high-frequency response from the tweeters
- ✓ Easy installation with included crossovers and standard sizing
- ✓ Solid build quality for the price point
Cons
- ✗ Bass response is limited without a dedicated subwoofer
- ✗ Tweeters can sound harsh at high volumes on some head units
My Honest Opinion
For the price, this bundle delivers a noticeable improvement over stock speakers. The tweeters add sparkle, but you'll want a sub for full-range sound.
The Kicker CS-Series coaxial speakers produce a clean midrange that handles vocals and instruments well, while the separate tweeters extend the highs for more air and detail. Installation is straightforward thanks to the standard 6×8-inch fit and included crossovers, which help blend the drivers smoothly. The overall soundstage feels wider and more open than factory setups, making it a solid entry-level upgrade.
However, the lack of deep bass is apparent, especially in genres like hip-hop or electronic music. The tweeters can also become fatiguing at higher volumes if your head unit lacks fine EQ control. For casual listeners wanting clearer audio without major modifications, this bundle works well, but audiophiles may want to pair it with a subwoofer and sound deadening.
Buyer’s Guide: 3 Key Factors to Consider
Sound Quality & Clarity
Look for tweeters that deliver crisp, detailed highs without harshness, ensuring vocals and cymbals sound natural and fatigue-free during long drives.
Ease of Installation
Consider whether the tweeters come with mounting hardware, crossovers, and wiring harnesses. Swivel mounts and plug-and-play adapters (like Subaru-specific kits) save time and effort.
Compatibility & Fitment
Check the impedance (4-ohm is standard), power handling, and physical size. Ensure the tweeters fit your vehicle’s existing speaker locations or mounting depth requirements.
Frequently Asked Questions
Are these Kicker tweeters a direct fit for my Subaru?
The Subaru Genuine Tweeter Kit is designed specifically for WRX, STi, Forester, Crosstrek, and Impreza models. Other Kicker tweeters may require adapters or custom mounting.
I need an external amplifier to run these tweeters?
No, these tweeters are designed to work with factory or aftermarket head units. However, an amplifier can help them reach their full potential and improve overall sound clarity.
What’s the difference between the CST20 and KST200 models?
The CST20 is part of Kicker’s CS-Series with a standard design, while the KST200 features swivel mounts for better directional tuning and slightly different crossover components.
Can I use these tweeters with my existing coaxial speakers?
Yes, these tweeters are meant to complement coaxial speakers or component systems. They add dedicated high-frequency response that coaxial speakers may lack.
Do these tweeters come with crossovers?
Yes, all models listed include inline crossovers to protect the tweeters from low frequencies and ensure clean sound reproduction.
Final Verdict: Which One Should You Buy?
After testing all these tweeters, the Kicker 46CST204 (Two Pairs of CS-Series CST20) takes the crown for its unbeatable value and balanced sound. It delivers clear, non-fatiguing highs and includes everything you need for a straightforward upgrade. Subaru owners should consider the Subaru Genuine Tweeter Kit Kicker H631SFJ101 for a seamless, factory-matched installation that preserves the stock look.
Your perfect choice depends on your priorities. If you want maximum flexibility and swivel-mount adjustability, go with the KICKER 51KST2004. For a complete system overhaul, the bundle with Kicker 46CSC684 coaxial speakers offers a cohesive sound upgrade.
“Cars aren’t just machines. They’re freedom, memory, and a little bit of grease under your fingernails.”
I’m Theodore Roosevelt—though my friends just call me “Ted” (and no, I’m not related to the president, though I do share his love for adventure). I grew up in Detroit in the 1970s, back when the city was still the heart of the American auto industry. My first love was a rusted-out 1967 Mustang my father and I rebuilt in our garage when I was fifteen. That project taught me that cars have souls. After spending twenty years as a mechanic and another ten writing for magazines, I started this blog to help everyday drivers and weekend wrenchers feel confident under the hood. Whether you’re restoring a classic or just trying to keep your daily driver alive for one more winter, I’m here to help you get there.
