Sony MHC-GX470 Operating Instructions - Page 27

Cleaning the cabinet Clean this system with a soft cloth slightly moistened with a mild detergent solution. Do not use any type of abrasive pad, scouring powder, or solvent, such as thinner, benzine, or alcohol. To prevent a tape from being accidentally recorded over Break off the cassette's overwrite protection tab from side A or B as illustrated. Break off the cassette tab To later reuse the tape for recording, cover the broken tab with adhesive tape. About a tape longer than 90 minutes The use of the tape with more than 90 minutes of play time is not recommended except for long, continuous recording or playback. Cleaning the tape heads Use dry- or wet-type cleaning cassette (available separately) after every 10 hours of use, before you start an important recording, or after playing an old tape. Failure to clean the tape heads can cause degraded sound quality or an inability of the unit to record or play tapes. For details, refer to the instructions of the cleaning cassette. Demagnetizing the tape heads Use a demagnetizing cassette (available separately) after every 20 to 30 hours of use. Failure to demagnetize the tape heads can cause an increase in noise, a loss of high frequency sound, and an inability to completely erase tapes. For details, refer to the instructions of the demagnetizing cassette. Specifications Main unit AUDIO POWER SPECIFICATIONS POWER OUTPUT AND TOTAL HARMONIC DISTORTION: (MHC-GX470 The United States model only) With 6 ohm loads, both channels driven, from 120 - 10,000 Hz; rated 125 watts per channel minimum RMS power, with no more than 10% total harmonic distortion from 250 milliwatts to rated output. Amplifier section North American model: MHC-GX470 Front speaker Continuous RMS power output (reference): 125 + 125 watts (6 ohms at 1 kHz, 10% THD) Total harmonic distortion: less than 0.07% (6 ohms at 1 kHz, 80 W) Subwoofer Continuous RMS power output (reference): 150 watts (6 ohms at 80 Hz, 10% THD) Total harmonic distortion: less than 0.07% (6 ohms at 80 Hz, 90 W) European and Russian models: MHC-RG590S Front speaker DIN power output (rated): 110 + 110 watts (6 ohms at 1 kHz, DIN) Continuous RMS power output (reference): 145 + 145 watts (6 ohms at 1 kHz, 10% THD) Music power output (reference): 290 + 290 watts (6 ohms at 1 kHz, 10% THD) Subwoofer DIN power output (rated): 130 watts (6 ohms at 80 Hz, DIN) Continuous RMS power output (reference): 170 watts (6 ohms at 80 Hz, 10% THD) Music power output (reference): 340 watts (6 ohms at 80 Hz, 10% THD) Others  Continued 27GB