Protected acoustic systems "Stella" are designed to convert electrical signals into sound vibrations and are used for sound reinforcement of designated areas up to and including category 1.
The "Stella" series systems have ultra-low side electromagnetic radiation. This allows them to be used as part of sound reinforcement systems at a short distance from the boundary of the controlled area of the protected facility without the mandatory use of active protection systems.
Advantages of the system
Ultra-low electromagnetic radiation; High quality of speech and music reproduction; Three types of performance - 4, 8 and 16 W.
Specifications
Operating frequency range, Hz
Stella-2
Stella-4
Stella-8
80 - 17000
60 – 17000
80 – 20000
Unevenness of the amplitude-frequency characteristic in the operating frequency range, no more than, dB
16
16
16
Sinusoidal electric power, no less than, W
2
4
8
Nominal electrical resistance, Ohm
16±1
4±1
8±1
Sound pressure level at a distance of 1 m from the acoustic system when supplying a power of 1 W, no less than, dB