Iset subscriber loudspeaker.

Subscriber loudspeakers.DomesticSince the beginning of 1990, the Iset subscriber loudspeaker has been produced by the Shadrinsky Telephone Plant. The Iset subscriber loudspeaker is a standard radio channel for listening to one broadcasting program transmitted over wired radio broadcasting networks. The receiver is designed for an input voltage of 30 V. Power consumption is 150 mW. The range of reproducible sound frequencies is 250 ... 5000 Hz. Loudspeaker weight 430 gr.