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Since its inception, the TAD Reference One has become the established reference for speaker systems in the new era of high definition audio. This ultra high end speaker system based on highly advanced technology developed by TAD (Technical Audio Devices), is used by creators of studio monitors in several leading recording studios around the world.
It employs carefully selected materials and parts, benefits from relentless attention to detail and engineering, and is backed by our unmatched design theory and testing ability.
The result is a sound field of flawless purity that achieves unprecedented professional audio artistry.
The TAD Reference One realizes richly resonant sound that has no equal. 



The CST (Coherent Source Transducer) enables us to achieve our goal for the TAD Reference One: "reproduction with controlled directivity over a wide frequency range from a single point with uniform phase". The design of the midrange cone is based on detailed calculations that result in the unique shape that produces superior acoustic characteristics and precise control of the directivity of the concentric mounted tweeter.
This configuration unifies the acoustic center of the tweeter and midrange and reconciles the phase and directional characteristics through the crossover range. The CST Driver is thus a large step forward for coaxial speakers, enabling ultra wide range reproduction of 250Hz to 100kHz, accompanied by a directivity pattern which neatly dampens without disruption across all bands. The result is extremely clear and stable imaging, a wide frequency response and incredibly rich and natural sounding reproduction. CST technology allows unprecedented wide-range reproduction and directivity control.



Model No



Three-way bass-reflex floor-standing

Drive Units

LF: 25cm (10 in.) x 2

Midrange/Tweeter: concentric

16 cm (6 1/2 in.) MF / 3.5 cm (1 3/8 in.) HF

Performance Data

Frequency response: 21 Hz to 100 kHz

Crossover frequencies: 250 Hz and 2 kHz

Unit polarity: LF (+), MF (+), HF (+)

Maximum input power: 300 W

Sensitivity: 90 dB (2.83 V @ 1 m)

Rated impedance: 4 Ω

Physical Data

Weight: 150 kg (330 lb)

Dimensions: 554 mm (21 3/4") (W) × 1,293 mm (50 7/8") (H)
× 698 mm (27½") (D)


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