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The speaker system "Lira" was supposedly produced since 1988 by the Izhevsk Radio Plant. The speakers, among others, were equipped with the Sirius RE-226S radio. Closed broadband speaker. Frequency range 80 ... 16000 Hz. Frequency response in the range 125 ... 10000 Hz ± 1.5 dB. Sensitivity 87 dB / W / m. Impedance 4 ohms. Noise power 15 watts. Long-term power of 25 watts. Short-term power of 50 watts. Dimensions 300x150x150 mm. Weight 5 kg.