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Acoustic system "150ÐС-001" (Electronics) was produced presumably since 1988. The AU is designed for high-quality playback of music and speech programs in stationary living conditions. A distinctive feature of the speaker system is the use of an acoustic transformer (Hale radiator) as an MF / HF radiator, and a passive radiator located on the front wall of the speaker housing in the LF link. The recommended power of a high-quality domestic amplifier is 50 ... 150 W. Installation option - floor. Characteristics: Frequency range: 40 ... 25000 Hz. Sensitivity: 91 dB. Irregularity of the frequency response in the range of 100 ... 8000 Hz: ± 4 dB. Harmonic distortion at a sound pressure level of 90 dB in the frequency range: 250 - 1000 Hz: 2%. 1000 - 2000 Hz: 1.5%. 2000 - 8000 Hz: 1%. Resistance: 8 ohms. Long-term power: 150 watts.