Ventura 4

Weatherproof, IP65 certified and salt spray tested, marine quality Ventura Series outdoor models can flood your pool, garden or yacht with high quality sound, even in the most extreme atmospheric conditions.

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Ventura 4


On the patio, by the pool, or on your yacht, the KEF Ventura 4 all-weather outdoor speaker pair lets you enjoy your music with no compromises. KEF Ventura Series is over-tested to out-perform the competition in even the most extreme weather environments: extreme heat & cold, beach environments, humidity… They’ll continue to bring you beautiful sound for years to come.


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Additional information


Two-way Sealed box

Nominal impedance

6 Ohms


88dB (at 1m on axis for an input of 2.83v)

Frequency response

75Hz -20kHz (±6dB)

Crossover frequencies


Drive units

HF Unit : 19mm Tweeter (Fluid Cooled Aluminium)
LF Unit : 115mm (4.5in.)

Product external dimensions

H x W x D
231 x 172 x 173 mm (9 x 6.75 x 6.8 in.) Cabinet only
235 x 172 x 203.2 mm (9.25 x 6.75 x 8 in.) With bracket and knobs

NET weight

2.4kg (5.3lbs)

Unit measurement



Ventura 4 Independent test laboratory certified IP65. GP Acoustics (UK) Ltd, reserve the right, in line with continuous research and development, to amend or change the specifications without prior notice. E. & O.E.