Yamaha A-S501 Black Stereo Amplifier


Expand your listening horizons with the black A-S501 Integrated Amplifier from Yamaha. Featuring up to 100W per channel of RMS power at 6 ohms, this amp is equipped with digital inputs for connecting devices like televisions and Blu-ray/DVD players. It offers dual stereo outputs, giving you the ability to power two sets of speakers in different rooms and switch between them, or have them both playing at the same time. To increase the bass output of your sound system, there’s also a terminal for connecting a subwoofer.

To reduce distortion and degradation and produce the cleanest possible sound, the A-S501 employs Pure Direct Mode. Activated via a button on the front of the unit, this mode causes input signals to bypass unused circuits and cuts off those circuits’ power supply. To further ensure quality sound, the amplifier’s continuously variable loudness control allows you to balance low and high frequency sounds so you can hear a full tonal range at any volume.

This Yamaha amplifier was built with energy efficiency in mind, and uses a power management system to switch itself to idle mode when not in use. The A-S501’s internal circuitry mirrors itself symmetrically to produce higher signal purity and lower degradation. The chassis is reinforced with a solid center bar to reduce vibration and features a brushed aluminum front panel and knobs. The system comes with a remote control for easy operation.

Categories: ,


Yamaha A-S501 Specs

RMS Output Power 6 Ohms, 20 Hz to 20 kHz, 0.038% THD: 100 W + 100 W
8 Ohms, 20 Hz to 20 kHz, 0.019% THD: 85 W + 85 W
Dynamic Power per Channel 8 Ohms: 130 W
6 Ohms: 150 W
4 Ohms: 185 W
2 Ohms: 220 W
Power Bandwidth 0.04% THD, 42.5 W, 8 Ohms: 10 Hz to 50 kHz
Damping Factor 1 kHz, 8 Ohms: ≥240
Input Sensitivity/Impedance Phono (MM): 3.0 mV / 47 kOhms
CD, etc.: 200 mV / 47 kOhms
Maximum Input Voltage Phono (MM) (1 kHz, 0.03% THD): ≥45 mV
CD, etc. (1 kHz, 0.5% THD): ≥2.2 V
Output Level and Impedance Rec Out: ≤200 mV / 1.0 kOhms
Subwoofer Out (Cut-Off Frequency: 100 Hz): 3.5 V / 1.2 kOhms
Headphone Output Impedance CD, etc. (Input 1 kHz, 200 mV, 8 Ohms): 430 mV / 470 ohms
Frequency Response With Pure Direct: 20 Hz to 20 kHz, 0±0.5 dB
Without Pure Direct: 10 Hz to 100 kHz, 0±1.0 dB
RIAA Equalization Deviation ±0.5 dB
Total Harmonic Distortion (THD) Phono (MM) to Rec Out (20 Hz to 20 kHz, 2.5 V) ≤0.03%
CD, etc. to Speakers (20 Hz to 20 kHz, 45 W, 8 Ohms): ≤0.019%
Signal-to-Noise Ratio Phono (MM) (5 mV Input Shorted): ≥82 dB
CD, etc., with Pure Direct On (200 mV Input Shorted): ≥99 dB
Residual Noise 40 μV (IHF-A Network)
Channel Separation CD, etc. (5.1 kOhms Input Shorted, 1 kHz): 65 dB or more
CD, etc. (5.1 kOhms Input Shorted, 10 kHz): 50 dB or more
Tone Control Bass
Boost/Cut (20 Hz): ± 10 dB
Turnover Frequency: 400 Hz
Boost/Cut (20 kHz): ± 10 dB
Turnover Frequency: 3.5 kHz
Loudness Control Attenuation (1 kHz, Continuous): -30 dB
Digital Audio Format PCM (2-channel), 192/176.4/96/88.2/48/44.1/32 kHz
PCM Word Depth 24-bit / 16-bit
Input 5 x RCA
1 x Phono for turntable
1 x Optical
1 x Coaxial
Output 2 x RCA
4 x Speaker terminal
1 x Subwoofer
1 x Headphone
1 x DC (accessory power)
Terminals Gold-plated RCA (CD, phono, coaxial) and speaker terminals
Cabinet (Chassis) Design: Reinforced with solid center bar
Finish: Brushed aluminum
Power Supply 120 VAC, 60 Hz
Power Consumption In Use: 240 W
Maximum: 510 W
Standby: 0.5 W
Capacitors 12,000 μF block capacitors
Dimensions (W x H x D) 17.1 x 5.9 x 15.2″ (43.5 x 15.1 x 38.7 cm)
Weight 22.7 lb (10.3 kg)
Packaging Info
Package Weight 26 lb
Box Dimensions (LxWxH) 21 x 8.5 x 7.5″


There are no reviews yet.

Be the first to review “Yamaha A-S501 Black Stereo Amplifier”

Your email address will not be published. Required fields are marked *