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Since May, 1990, the Mayak plant in Kiev produced the Mayak 15AS-222 and Mayak 15AS-222-1 loudspeakers. Broadband closed-circuit speakers. The range of reproduced sound frequencies is 100 ... 16000 Hz. Irregularity of the frequency response in the frequency range 100 ... 16000 Hz - 14 dB. Sensitivity 90 dB. 4 ohm impedance. Rated power 10 watts. Long-term power 15 watts. Short-term power of 20 watts. Used dynamic head 10 GDSH-1-4. External dimensions of AC 270x265x248 mm. Weight 4.5 kg. These speakers were equipped with Beacon M-240S-1 tape recorders and some others.