TAD also applied a triple-slit phasing plug, which was computer-designed, offering improved equalization characteristics to ensure a smooth frequency response up and above 30 kHz. The effect of surround vibration is minimized, resulting in a transparent and smooth extension to the high-frequencies. This method ensures ideal phase equalization up to the ultra-high frequency areas. Perfecting the original design of this rear compression type horn tweeter, TAD hollowed out the inside of the pole yoke to create a sound path and mounting the diaphragm from the rear.

As a result, a wider reproduction bandwidth, excellent transient characteristics, and outstanding resolution are achieved,' the company states. Furthermore, despite the large 35mm diaphragm, the diaphragm is ultra-lightweight at 0.07 g, and the high resonance frequency is as high as 45kHz. By designing the resonance frequency of the surround higher than 50kHz, the negative effects on the audible frequency band are eliminated. Using our unique vacuum evaporation technique, we have succeeded in integrating the surround and diaphragm with beryllium. 'The ET-703a is one of the world‘s most efficient and broadband reproduction loudspeakers for super high frequencies. The magnetic circuit is provided by a samarium-cobalt magnet that can ensure stable output even in high-temperature operation, and the magnetic flux density can reach 2 Tesla.Īccording to TAD, with its triple-slit fading plug, 15W rated input power (30W max.), and 5kHz or higher crossover frequency (-12 dB/oct or higher), the new ET-703a horn tweeter will further revolutionize the world of precision monitoring and high audio design. The phasing plug is triple-slit type with slit spacing of approx. The 35mm beryllium diaphragm is extremely lightweight at only 0.07gr, and in synergy with the aluminum edge-wound voice coil insulated with an anodized aluminum coating film, combines outstanding response with a wide frequency bandwidth and high input power. TAD has fine-tuned its existing ET-703, known as a true rear compression type horn tweeter with this triple-slit fading plug.

Tad speakers ce1