ET-703a TADL Announces ET-703a,
The Super High Frequency Loudspeaker for Professionals

Model	Description	Available
ET-703a	Super High Frequency Loudspeaker	June 2023

Technical Audio Devices Laboratories, Inc. (TADL) today announced its latest professional speaker product the “ET-703a'', a fine-tuned model of the ET-703 super high frequency horn tweeter, which has been highly acclaimed in the professional industry.

The ET-703a is one of the world‘s most efficient and broadband reproduction loudspeakers for super high frequencies. TAD has fine-tuned the ET-703, known as a true rear compression type horn tweeter with this triple-slit fading plug. 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. The phasing plug is triple-slit type with slit spacing of approx. 5 mm, enabling reproduction up to 45 kHz. The magnetic circuit is provided by samarium-cobalt magnet that can ensure stable output even in high-temperature operation, and the magnetic flux density can reach 2 Tesla. The ET-703a will further revolutionize the world of digital sound monitoring.

Specifications

Rated impedance	8 ohms
Frequency response	5,000 to 45,000 Hz
Voice coil diameter	35 mm (1 3/8 in.)
Equalization system	Triple-slit rear compression type
Mounting Information	Mounting on the baffle Baffle opening diameter: 81 mm (3 3/16 in.) Mounting pitch: 98 mm (3 55/64 in.) (for 4-hex socket head cap screws) On to the enclosure: 25 mm (63/64 in.) (for 2-wood screws)
Rated input power	15 W for crossover frequency at 5 kHz -12 dB/oct
Maximum input power	30 W for crossover frequency at 5 kHz -12 dB/oct
Sound pressure level	107 dB at 1 W, 1 m (anechoic conditions)
Crossover frequency	5000 Hz or higher (-12 dB/oct or higher)
Total magnetic flux	4.0 x 10-4 Wb
Magnetic flux density	2.0 Tesla
External dimension	φ80 mm x 74 mm (Depth) (φ3 5/32 in.×2 29/32 in. (Depth))
Weight	1.1 kg (2 lb 7 oz)
Accessories	Mounting flange (1), Mounting packing (1), Hex socket head cap screws (4), Washer (4), Cross-recessed head wood screw (2), Hex wrench (1), Instruction manual (1)