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.
The KEF Ventura 4 is a high-performance all-weather speaker designed for outdoor applications including direct exposure to sun, rain, and salt spray. The speaker features a 115mm low frequency woofer and a 19mm fluid cooled aluminium high frequency tweeter mounted in a sealed IP65 certified enclosure ensuring high quality music experiences in even the most extreme atmospheric conditions. Its performance and design characteristics make the KEF Ventura 4 the ideal choice for installations around swimming pools, patios, outdoor gardens, theme parks, car parks, and on yachts.
Weatherproof Construction – Manufactured using a proprietary plating and powder coating process, the KEF Ventura 4 had to endure 1,200 hours of direct salt spray testing and is UV protected to withstand the harshest environments with an operating temperature from -40° to +70°C.
Versatile Mounting System – An included ratcheting aluminium mounting bracket allows the speaker to be rotated 180° and the symmetrically square KEF logo can be rotated in 90° increments increasing installation options while retaining the correct finished appearance. The speaker also includes ¼-20 brass inserts for use with many aftermarket mounting systems.
Stainless Steel / Brass Hardware – The included hardware is made from materials designed to withstand the same extreme operating conditions as the speaker, ensuring the complete assembly is kept free of corrosion and discoloration.
Fluid Cooled Aluminium Tweeter – The high-power anodised aluminium tweeter is cooled by a ferro-fluid liquid greatly improving it’s thermal handling capacity and reliability.
IP65 Certification – The speaker assembly is completely sealed from dust and water ensuring that even direct salt spray will not harm any components.
Architect and Engineer Specifications
The speaker shall be designed for outdoor installations in extreme atmospheric conditions and utilise a 115mm low frequency woofer and a 19mm liquid cooled and anodised aluminium high frequency tweeter. The speaker enclosure shall be made of ABS, be treated with a UV protective finish, and have dimensions of no more than 231mm x 172mm x 173mm with a total weight of no more than 2.4kg. All supplied mounting brackets and hardware shall be constructed from aluminium, stainless steel, or brass, and support speaker installation in both vertical and horizontal configurations. The speaker shall also include ¼ – 20 inserts for compatibility with aftermarket mounting systems and be available in both black and white finishes.
The speaker shall have a frequency response of 75Hz – 20kHz and an operating temperature range of -40°C to 70°C. The speaker shall achieve a minimum pressure sensitivity of 101dB SPL at 1 meter on-axis with an input signal of 2.83 volts. The crossover frequency between the woofer and tweeter shall be 3.5kHz. The speaker shall be IP65 certified and meet numerous safety and performance standards listed by regulatory bodies around the world.
The speaker shall be the KEF Ventura 4.
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 Frequency: 3.5kHz
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
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