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Amplifier switching device "Bark-001-stereo" from I-kv 1985 produced Novokahovsky PSZ "Sokol". UCU is intended for high-quality phonogram amplification. It provides a stepwise adjustment of volume and timbre with the ability to change the frequency response using high and low frequency filters, there is a soft turn on system that prevents unpleasant clicks when the amplifier is turned on and off, protection against short circuits in the network, and overload of the amplifier channels. It is possible to simultaneously connect two sets of speakers to the UCU or stereo headphones. UCU is distinguished by a low noise level, low intermodulation and harmonic distortion, high phase and frequency response linearity. Rated output power 2x50 watts. The frequency range of 20 ... 25000 Hz. Harmonic factor 0.1%. SOI - 0.15%. The separation of stereo channels at a frequency of 1000 Hz - 50 dB. Signal-to-noise ratio for LV 86 dB. Power consumption 150 watts. UCU dimensions - 452x372x118 mm. Weight 15 kg.