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The three-program "Arfa-301" prefix has been produced since 1981 by the Rybinsk Instrument-Making Plant. ,86e6f450b8cc469628ba70bf2947b049The set-top box is designed to work together with a subscriber loudspeaker and works in a three-program wire broadcasting network with a voltage of 30 or 15 V. In the PT there is an adjustment of the sensitivity of HF channels. ,86e6f450b8cc469628ba70bf2947b049The attachment can be installed on a table or attached to a wall. ,86e6f450b8cc469628ba70bf2947b049The sensitivity of the HF channels is 0.25 V. The rated output power is 250 mW. ,86e6f450b8cc469628ba70bf2947b049The range of reproducible sound frequencies at the output of the set-top box is 160 ... 6300 Hz. ,86e6f450b8cc469628ba70bf2947b049Power consumption from the network 2.5 W. ,86e6f450b8cc469628ba70bf2947b049The dimensions of the attachment are 270x121x42 mm, weight is 1.5 kg.,86e6f450b8cc469628ba70bf2947b049,null,ru,null,null,null,null