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The Kicker 45KM84L is a pair of KM Series 8" (200 mm) marine coaxial speakers, rated at 150W RMS. They feature a 1" PEI dome tweeter, seven-colour LED grilles, and IP66 certification, built for boats and wakeboard towers.
This listing is the 8" model. The KM Marine range is also available in a 4" version (45KM44, 50W RMS).
Key specifications
- Size: 8" (200 mm) coaxial, sold as a pair
- Tweeter: 1" PEI dome
- Impedance: 4 ohm
- Power handling: 150W RMS, 300W peak
- Sensitivity: 92 dB 1W/1m
- Frequency response: 30 Hz – 21 kHz
- Mounting hole: 170 mm, mounting depth: 83 mm
- Lighting: seven-colour LED grilles (upgradable to 20 colours and 19 modes with KMLC)
- Protection: IP66, ASTM G154 UV and ASTM B117 salt fog tested
KM Marine 8" (200 mm) Coaxial Speaker System with White & Charcoal LED Grilles
45KM84L
KM Series speakers are built to withstand life on the water. UV-treated injection-moulded cones, Santoprene® surrounds, and UV-resistant polymer baskets maintain performance in harsh conditions. Sealed motors, locking/sealed terminal covers, and 316L stainless-steel hardware protect against splash, spray, and corrosion.
Features
- IP66 certification (protected from dust and water jets/splash)
- Four-ohm voice coil
- 1" PEI tweeter to resist corrosion
- UV-treated polypropylene woofer with Santoprene® surround
- UV-resistant polymer basket
- Locking/sealed terminal cover
- Sealed motor structure
- 316L stainless mounting hardware included
- White and charcoal grilles with seven-colour LED system included*
- Meets or exceeds ASTM standards for UV** and salt/fog exposure***
*Upgradable to 20 colours and 19 lighting modes with KMLC.
**ASTM G154 400 hr. accelerated UV test.
***ASTM B117 200 hr. salt fog test.
Recommended power: 150W RMS.
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Specification
| Speaker Size (in) | 8" |
|---|---|
| Style | Coaxial |
| Colour | Black/White |
| Impedance | (Ohms) 4 |
| RMS Power (W) | 150 |
| Peak Power (W) | 300 |
| Sensitivity | (dB @ 1W/1m) 92 |
| Frequency Response | (Hz) 30-21k |
| Height (cm) | 20.4 |
| Width (cm) | 20.4 |
| Depth (cm) | 11.8 |
| Protrusion (cm) | 3.5 |
| Mounting Hole Diameter (cm) | 17 |
| Mounting Depth | (cm) 8.3 |
| Minimum Enclosure Volume (Litres) | 17 |
| Tweeter Dome Material | PEI |
| Tweeter Design | Dome |
| Woofer Cone Material | Polypropylene |
| Woofer Surround Material | Santoprene |
| Single Or Pair | Pair |
| Grilles | Included |
| Grille Style | Sports |
| Grille Colour | Black / White |
| Waterproof Rating | ASTM B117 200 hr Salt Fog Test Compliant |
What's Included
- Kicker 45KM84L
- 2 x coaxial speakers with charcoal and white grilles
- 8 x mounting screws
- 8 x mounting screw clips
- 2 x wire connection covers
- 2 x zip ties
Kicker
About the Kicker 45KM84L
From our tech experts at CEN
Marine-grade 8 inch speakers handling 150w RMS, with UV-stable cones and corrosion-resistant hardware so they survive sun, salt and damp.
Who it suits
Boats, ribs and open vehicles, plus campers and outdoor builds where speakers live in the weather. Worth considering for any open-topped vehicle that sits outside.
Our tech experts advise
Marine installs live or die on the wiring: corrosion protection at every joint and a properly fused feed. Mounting location does more for the sound than the speaker choice. get in touch and we will talk through the layout. 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: 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: What is the difference between coaxial and component speakers?
A: Coaxial speakers combine the tweeter and woofer in one unit for a simple like-for-like upgrade. Component sets separate the tweeter and woofer with a crossover for better imaging and detail, and suit installs where sound quality is the priority.
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: Do the Kicker 45KM84L speakers light up?
A: Yes. The white and charcoal grilles include a seven-colour LED system, upgradable to 20 colours and 19 lighting modes with the KICKER KMLC controller.
Q: Are the 45KM84L speakers waterproof?
A: They carry IP66 certification (protected from dust and water jets or splash) and meet ASTM standards for UV and salt fog exposure.
Q: What size hole do the 45KM84L speakers need?
A: A 170 mm mounting hole with 83 mm of mounting depth.
