Harman Kardon Radiance 2400: Constant Beamwidth sound, Chromecast and AirPlay

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Harman Kardon Radiance 2400 – system in 2.1 configuration or just trifonik. A pair of ultra-thin (5 cm wide and 6 cm deep) floor speakers with a height of 1.8 m are used as front satellites. Inside each there is a row of specially calibrated 1.25-inch broadband speakers – that’s where such dimensions come from.

The system supports Constant Beamwidth technology, originally patented by Harman for professional equipment. This is a special radiation pattern setting designed to provide the same sound to all listeners in the room. Harman claims that Radiance 2400 owners will no longer have to search for the “listening sweet spot”.

At the base of each satellite are wireless receivers, digital converters and amplifiers, complemented by Harman Digital Loop Amplifier technology. It is designed to compensate for the disadvantages of class D amplification. At low frequencies, an active 200-watt 10-inch subwoofer operates.


The signals for the acoustics are generated by the Harman Kardon Radiance digital hub. In fact, it is a wireless preamplifier with connectors for connecting audio sources. In addition, it supports Chromecast and AirPlay, that is, it is capable of being completely independent.


In addition to applications for streaming audio, the digital hub can be controlled via a built-in LCD display, a complete remote control with a Bluetooth connection, or from a smartphone.

Earlier this year, the Radiance 2400 was awarded Best of Innovation at CES 2021 in the High-Performance Home Audio or Video category, but will be available from October.

The Harman Kardon Radiance kit will cost £ 4,000 in the UK.

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