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Since 1999, the subscriber loudspeaker Lira AG-347 has produced Izhevsk Radio Plant OJSC. Designed to reproduce the low-frequency channel transmission network wired radio. The rated voltage in the network is 30 V. The range of reproducible frequencies is 150 ... 10000 Hz. The average sound pressure of 0.25 Pa. Dimensions of loudspeaker 140x162x75 mm. Weight 0.9 kg.