The Yamaha A-S501 stereo amplifier offers impressive audio performance with a wide range of useful features, including a high sound quality circuit design based on the ToP-ART concept, continuously variable loudness control, and a simple yet sophisticated design. With a maximum power output of 120W x 2 and a range of connectivity options, this amplifier is a great choice for anyone looking for high-quality audio reproduction. Yamaha A-S501 Integrated Stereo Amplifier The Yamaha A-S501 stereo amplifier offers impressive audio performance with a wide range of useful features. This integrated amplifier provides connectivity with a wide range of source devices such as a Turntable, CD Player, Bluetooth adapter or TV. High sound quality circuit design based on the ToP-ART (Total Purity Audio Reproduction Technology) concept ToP-ART Design and ART Base Ensure Optimum Sound When processing and transmission of the audio signal is simple and direct there is less chance of it being affected by noise and distortion. Yamaha’s amplifier design technology called ToP-ART features an I/O (input to output) Direct Symmetrical Design, with left and right channels organised in a straight, symmetrical layout for highest signal purity. In addition, the ART (Anti-Resonance and Tough) Base bottom chassis and a solid centre bar provide high-rigidity support and vibration damping. These Yamaha design innovations contribute to this amplifiers’ rich audio reproduction with abundant musicality. Continuously Variable Loudness Control The A-S501 also features a new analogue loudness control on the front panel that uses electronic volume for higher sound quality, which lets you adjust the loudness effect as desired. Separate from the overall volume, this controls the balance of the low and high frequency sounds, providing full tonal range at any volume level, compensating for the natural loss in the human ear of high and low frequencies at soft levels. FEATURES ToP-ART (Total Purity Audio Reproduction Technology) and high quality parts I/O (input to output) Direct Symmetrical Design ART (Anti-Resolution and Tough) Base Custom-made power transformer with Aluminum-extruded heat sinks 120W x 2 (max), 85W x 2 (RMS) high power output Pure Direct Mode for Greater Sound Purity Continuous Variable Loudness Control Gold-plated speaker terminals and RCA (CD, Phono) and coaxial terminals Digital audio inputs for TV or Blu-ray Player Simple yet sophisticated design (aluminium front panel and knobs) Auto Power Standby SPECIFICATIONS A-S501 Minimum RMS Output Power (8 ohms, 20 Hz-20 kHz) 85 W + 85 W (0.019% THD) Maximum Power (4 ohms, 1kHz, 0.7% THD, for Europe) 120 W + 120 W High Dynamic Power/Channel (8/6/4/2 ohms) 130/150/185/220 W Damping Factor 240 Frequency Response 10 Hz-100 kHz +/-1.0 dB Total Harmonic Distortion (CD to Sp Out, 20 Hz-20 kHz) 0.019% (50 W/8 ohms) Signal-to-Noise Ratio (CD) 99dB (input shorted, 200 mV) Audio In / Out 8 / 2 Digital Input Yes (optical / coaxial) Subwoofer Out Yes DC out Yes Pure Direct Yes ToP-ART Yes Standby Power Consumption 0.5W Power Management (Auto Power Standby) Yes Dimensions (W x H x D) 435 x 151 x 387 mm; 17-1/8” x 6” x 15-1/4” Weight 10.3 kg; 22.7 lbs.
