High sound quality circuit design based on the ToP-ART (Total Purity Audio Reproduction Technology) concept

High Quality Parts for Outstanding Audio Performance

Created by Yamaha’s Rich Experience and Tradition, and High Technological Expertise
Yamaha, with a long history of over 125 years as a musical instrument maker, also has a high reputation for HiFi components. The A-S501 is 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, even though an entry model it reproduces high sound quality and musically rich sound.
Pure Direct Mode for Greater Sound Purity

Continuously Variable Loudness Control

Gold-plated Terminals

Digital Audio Input for TV and/or Blu-ray Player

Speaker A, B or A+B Selection and Speaker Terminals for Two Systems

Subwoofer Terminal
A terminal for connecting a subwoofer is provided, allowing you to increase the bass output of your system for a more powerful sound with better overall sound quality.
Phono MM Terminal
You can connect a turntable with an MM phono cartridge to play vinyl records. This lets you enjoy not only CDs, but also analogue record sound from an amp with the latest digital/analogue technology.
Simple yet Sophisticated Design

Remote Control with Clean, Simple Design

Rotary Encoder Input Selector with LEDs
The rotary encoder makes it quick and easy to select input sources. The luxury hairline finish material offers a nice tactile feeling. LEDs clearly show which source is selected, so you can easily switch sources even in a dark room.
Auto Power Standby Function

Specifications
A-S301 |
A-S801 |
A-S501 |
||
---|---|---|---|---|
Minimum RMS Output Power (8 ohms, 20 Hz-20 kHz) | 60 W + 60 W (0.019% THD) | 100 W + 100 W (0.019% THD) | 85 W + 85 W (0.019% THD) | |
Maximum Power (4 ohms, 1kHz, 0.7% THD, for Europe) | 95 W + 95 W | 160 W + 160 W | 120 W + 120 W | |
High Dynamic Power/Channel (8/6/4/2 ohms) | 100/120/140/150 W | 140/170/220/290 W | 130/150/185/220 W | |
Damping Factor | 210 | 240 | 240 | |
Frequency Response | 10 Hz-100 kHz +/-1.0 dB | 10 Hz-100 kHz +/-1.0 dB | 10 Hz-100 kHz +/-1.0 dB | |
Total Harmonic Distortion (CD to Sp Out, 20 Hz-20 kHz) | 0.019% (50 W/8 ohms) | 0.019% (50 W/8 ohms) | 0.019% (50 W/8 ohms) | |
Signal-to-Noise Ratio (CD) | 99dB (input shorted, 200 mV) | 99dB (input shorted, 200 mV) | 99dB (input shorted, 200 mV) | |
Audio In / Out | 8 / 2 | 8 / 2 | 8 / 2 | |
Digital Input | Yes (optical / coaxial) | Yes (optical / coaxial) | Yes (optical / coaxial) | |
Subwoofer Out | Yes | Yes | Yes | |
DC out | Yes | Yes | Yes | |
Pure Direct | Yes | Yes | Yes | |
ToP-ART | Yes | Yes | Yes | |
Standby Power Consumption | 0.5W | 0.5W | 0.5W | |
Power Management (Auto Power Standby) | Yes | Yes | Yes | |
Dimensions (W x H x D) | 435 x 151 x 387 mm; 17-1/8” x 6” x 15-1/4” | 435 x 152 x 387 mm; 17-1/8” x 6” x 15-1/4” | 435 x 151 x 387 mm; 17-1/8” x 6” x 15-1/4” | |
Weight | 9.0 kg; 19.8 lbs. | 12.1 kg; 26.7 lbs. | 10.3 kg; 22.7 lbs. | |
RIAA Equalization Deviation | – | – | – | |
Input Sensitivity (CD) | – | – | – | |
USB Input | – | Yes (type B) | – | |
Switchable CD Direct Amplification | – | Yes | – |