Amplifier-switching device "Helios-001-stereo".
Amplifying and broadcasting equipmentSince 1986, the amplifier-switching device "Helios-001-stereo" has been produced by the Kazan Plant of Writing Devices. UCU of the highest group of complexity provides amplification of music or speech programs and allows sounding medium-sized concert halls. UCU consists of a pre-amplifier with a mixing console for eight inputs; two-channel ULF unit, with a 12-band tone block; two AS `` Helios-100 ''. The UCU provides: indication of overload in case of short circuit, overheating; octave graphic equalizer for 16 frequencies; 31; 62; 125; 250; 600 Hz; one; 2; four; eight; sixteen; 30 kHz; LED level indicator; mixing console, stereo phone jack, eight-channel switcher; buttons for turning on each of the 8 channels; regulators of treble and bass tone, volume and reverberation signal; the ability to connect program sources and select any of them by switching; switching modes pseudo-quadro, stereo, mono, phasing of the speaker. UCU cases are made of metal and lined with artificial leather. Rated output power 2x100 W. The range of sound frequencies is 20 ... 20,000 Hz. SOI 0.3%. Input sensitivity: high-impedance 775 mV, medium-impedance 245 mV, microphone 10 mV. Signal-to-noise ratio 70 dB. Tone adjustment range LF ± 12, HF ± 12 dB. Speaker impedance 4 ohms. Power consumption 510 watts. Dimensions: preamplifier 490x440x160 mm, amplifier with tone control 490x400x160 mm, AC 1174x557x440 mm. Weight 12, 22 and 52 kg.
