Yamaha Quality Yamaha has a high reputation for HiFi components. The A-S201 was created by taking advantage of this rich experience and high technological expertise. Based on the concept of Natural Sound for reproducing all music as it really sounds and built with scrupulous care from circuit design to basic sound production. This entry level model still reproduces high sound quality and musically rich sound. Natural Open Sound The A-S201 with 100W (8 ohms 40Hz-20kHz 0.2%) THD× 2 high drive power thats above its class has a high sound quality design that minimises the length of signal routes and optimises the circuit layout. Positioning the power transformer near the power amp circuit reduces power loss while improving peak power supply capacity to enable high volume output. The signal ground and power supply ground are connected at one point eliminating mutual interference to achieve a higher S/N ratio. The result is sound filled with clarity and a feeling of openness. Engaging the Pure Direct Switch causes the audio signal to bypass the control circuits for bass and treble balance and the back buffer amp. This improves sound quality while maintaining full output capacity. Shortening the signal route improves sound purity helping to reproduce even the most delicate musical nuances. Sophisticated Design The A-S201 inherits the simple and sophisticated design style that Yamaha HiFi audio is famous for. With an elegant hair line finish it harmonises beautifully with other HiFi audio equipment. The operating buttons and volume knobs also show a commitment to simplicity and ease of use. The A-S201 has one MM phono input terminal for connecting a record player. A total of five input terminals mean that it can be the central unit for different types of audio systems. And its large screw-type speaker terminals provide firm connections with thick speaker cables. A power management function automatically cuts off the power (switches to standby mode) when the amplifier has not been operated for a long time. It can be set to 2 4 8 or 12 hours or off. In addition power consumption during standby is only 0.5W achieving good energy saving performance. Features Yamaha high sound quality created by rich experience and tradition and high technological expertise Pure Direct Mode for greater sound purity Simple and sophisticated design Phono MM terminal for vinyl playback Screw-type speaker terminals Speaker selector and speaker terminals for two systems Simple design remote control Head phone terminal Specifications Maximum Power: (4 ohms 1kHz 0.7% THD for Europe) 140 W + 140 W Maximum Power: (8 ohms 1 kHz 10% THD) 100 W + 100 W High Dynamic Power/Channel: (8/6/4/2 ohms) 125 W/150 W/165 W/180 W Frequency Response: 10 Hz-100 kHz(0 ± 0.5 dB / 0 ± 3.0 dB) Total Harmonic Distortion: (CD to Sp Out 20 Hz-20 kHz) 0.2% Signal-to-Noise Ratio: (CD) 100 dB (S: 500 mV) Input Sensitivity: (CD) 500 mV / 47 k-ohms Standby Power Consumption: 0.5 W Dimensions: (W x H x D) 435 x 141 x 333 mm; 17-1/8" x 5-1/2" x 13-1/8" Weight: 6.7 kg; 14.8 lbs.
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