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KEF Ci Series 4.5" Outdoor Speaker-White
KEF Ci Series 4.5" Outdoor Speaker-White 0

KEF Ci Series 4.5" Outdoor Speaker-White

Model #: Ventura 4
At a Glance
KEF Ci Series 4.5" Outdoor Speaker-White with two-way boxed sealed system and fluid cooled, anodized aluminum dome tweeter
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Get to know this product.

The Ventura line is IP65 certified, which means independent laboratory tests found them dust tight, and unharmed by jets of water. Their grilles and brackets have survived exposure to salt spray for 50 days. At KEF, we are renowned for our passion for audio excellence. All our outdoor speakers feature a fluid cooled, anodized aluminum dome tweeter and an injection molded woofer – so you can enjoy the KEF hallmarks of transparency and clarity. The flagship Ci500W adds an Auxiliary Bass Unit for deep, authoritative bass.

All Weather

  • High performance outdoor speaker.

Dome Tweeter

  • High power handling, fluid cooled, anodized aluminum dome tweeter.

Long-Throw Woofer

  • Long-throw woofer with injection molded cone and rubber surround.

Weather Resistant

  • UV treated, high impact, sealed ABS composite enclosure.

Powder Coated

  • Rust proof aluminum bracket and grille.

Ratcheting Mounting Bracket

  • Ratcheting mounting bracket for up to 180 degree rotation.

Easy Mounting

  • Two 1/4 - 20 brass inserts included for use with aftermarket mounting brackets.


Connector Type:Binding Posts


Tweeter Composition:Soft Dome
Woofer Composition: Polypropylene Cone


Crossover Type:3.5kHz
Sold As:Each


Sensitivity:88 dB



Misc. Specs

Product Weight (lbs.)5.3
Depth (in.)6.1
Width (in.)6.8
Height (in.)9
Impedance6 ohms
Woofer Size4.5
RMS Power Handling (Watts)80
Manufacturer Warranty5 Year
Maximum Power Handling (Watts)80
WarningProposition 65 Warning for California Residents