Ritm (Usilitel' NCh) 1975
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Since 1975, the low-frequency amplifier "Rhythm" has been manufactured by the Lyubertsy plant of the Electromagnetic Plant Rodina. Professional pop amplifier "Rhythm" is designed to amplify electrical signals from microphone and electromusical instruments. Nominal output power at a load of 10 ohms - 20 watts, maximum 25 watts. The range of reproduced frequencies with uneven frequency response / -1.5 dB - 60 ... 12000 Hz. Input sensitivity 1 - 25 mV, input 2 - 100 mV. The level of intrinsic noise and background is no more than -60 dB. The nonlinear distortion coefficient at the 1000Hz frequency is not more than 1.5%. The tone control at frequencies of 100 and 10000 Hz at least 12 dB. The recommended speaker power in speakers is 30 watts. The power consumed from the network is not more than 160 watts. Dimensions of the amplifier 160h420h215 mm. Weight 9 kg.
Information from collection of Valery Khartchenko