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The Kicker 51KST2004 is a pair of KS Series 0.75" (20 mm) silk-dome tweeters rated at 10–65W RMS, supplied with in-line 12dB crossovers and multiple mounting options.
Key specifications
- Tweeter: 0.75" (20 mm) silk dome, neodymium magnet
- Recommended power: 10–65W RMS (195W peak)
- Impedance: 4 ohms
- Sensitivity: 92 dB (1W/1m)
- Frequency response: 4,500Hz–21kHz
- Crossover: in-line 12dB high-pass at 4,500Hz
- Flush mounting: 40 mm hole, 14 mm depth
- Sold as: pair
KS Series 0.75" tweeter set with crossovers
The KS Series 51KST2004 tweeters use a silk dome to reproduce high frequencies with smoothness and accuracy. Extended frequency response and high power handling make these a strong upgrade for any car audio system. Comes complete with flush, angled and surface-pod mounting options, an in-line 12dB crossover, and grilles.
Features
- Silk-dome design for smooth, natural high-frequency sound
- Four mounting options — flush, angled, surface-pod and more (hardware included)
- Extended frequency response: 4,500Hz–21kHz
- Lightweight neodymium magnets for efficient high-frequency output
- In-line 12dB high-pass crossover included
- Poly-switch protection
- Grilles included
Explore the full range in Tweeters.
Specification
| Tweeter (in,mm) | 0.75, 20 |
|---|---|
| Tweeter Dome Material | Silk |
| Rated Impedance (Ω) | 4 |
| Peak Power (watts, per ANSI/CTA-2031-A) | 195 |
| Recommended Amplifier Power (watts RMS) | 10-65 |
| Sensitivity | [1W, 1m] 92 |
| Frequency Response | [Hz] 4500-21k |
| Flush Mount Tweeter Depth (in, mm) | 9⁄16 , 14 |
| High Pass (dB), at Frequency (Hz) | 12, 4500 |
More specs
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What's Included
- Kicker 51KST2004
- 2 x KS tweeters
- 2 x KS crossovers
- 2 x flush rings
- 2 x angle rings (front and back)
- 2 x surface-mount pods with pod nuts and washers
- Long and short nuts and mounting screws
- Tweeter tool
Kicker
About the Kicker 51KST2004
From our tech experts at CEN
Tweeters handling 65w RMS for adding high-frequency detail where the factory system has none, or for replacing tweeters in an existing component set.
Who it suits
Drivers whose system sounds dull at the top, and anyone building a front stage where the tweeter needs mounting on the pillar or dash rather than down in the door.
Our tech experts advise
Placement and aiming change the sound more than the tweeter itself, and they need crossing over properly so they are not asked to play too low. get in touch if you are unsure how they would integrate with your speakers. See car audio installation.
Explore the full Kicker range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all Kicker
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Frequently Asked Questions
Q: Will these speakers fit my car?
A: Most car speakers are standard sizes, but mounting depth and fitting rings vary by vehicle. Check the size in the Specification tab against your vehicle, or contact CEN with your registration and we will confirm fitment and any adapters or fitting kits you need.
Q: Do I need an amplifier to run these speakers?
A: Not always. Most speakers will run from a standard head unit, but a dedicated amplifier lets them perform at their best, particularly for component sets and higher power handling models. The RMS figure in the Specification tab is the guide to how much clean power they can use.
Q: Do these come as a pair?
A: Unless stated otherwise, car speakers are sold in pairs. Check the product title and What's Included tab, which lists exactly what is in the box.
Q: Can CEN fit these speakers for me?
A: Yes. CEN offers professional installation from our Nottingham premises. Contact us to book an installation slot or ask for a fitting quote.
Q: How much power do the Kicker KST2004 tweeters need?
A: Kicker recommends 10 to 65 watts RMS, with a 195 watt peak rating, at 4 ohms.
Q: Do the KST2004 tweeters come with crossovers?
A: Yes. Each tweeter has an in-line 12dB crossover with a 4,500Hz high-pass point.
Q: What's in the box with the Kicker 51KST2004?
A: Two KS tweeters and two crossovers, plus flush rings, front and back angle rings, surface-mount pods with nuts and washers, mounting screws and a tweeter tool.
