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Ventura4

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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.

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.

Key Features


  • Weatherproof sealed enclosure
  • Salt spray tested for over 1200 hours
  • Operating temperature range: -40 to +70 C (-40 to +158 F)
  • Independent test lab certified IP65
  • Aluminium grille and mounting bracket, 1/4"-20 threaded inserts for mounting options
  • Stainless steel / brass hardware
  • Rotatable logo


Technical specifications

TYPE: Two-way Sealed box
NOMINAL IMPEDANCE: 6 Ohms
SENSITIVITY: 88dB (at 1m on axis for an input of 2.83v)
FREQUENCY RESPONSE: 75Hz -20kHz (±6dB)
CROSSOVER FREQUENCIES: 3.5kHz
DRIVE UNITS: HF Unit : 19mm Tweeter (Fluid Cooled Aluminium)
LF Unit : 115mm (4.5in.)
RECOMMENDED AMPLIFIER POWER: 10 - 80 Watts
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: Pair