With high sound quality ToP-ART circuitry and high stability construction, this integrated amplifier delivers superior musicality and powerful sound. And by incorporating advances like a USB DAC function, it fully supports the latest high resolution sound formats.
High Strength Chassis Contributes to High Density Sound and High Purity Audio Reproduction
In order to effectively dampen the vibrations that have adverse effects on sound quality, this model's chassis has a double bottom with a 1mm iron plate. In addition, the power transformer and heat sinks in the power amp section are supported by an extremely strong and stable ART (Anti-Resonance and Tough) base. A solid centre bar further enhances high rigidity support and vibration damping. These Yamaha design innovations contribute to superior S/N ratio and natural, rich sound reproduction.
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.
High Quality Parts for Outstanding Audio Performance
Custom-made power transformer, custom-made block capacitors, two direct signal path speaker relays, one-point grounding system, aluminium-extruded heat sinks and other top-quality parts effortlessly handle demanding audio signal conditions. The quality of each individual part, as well as how they work together, basically determines the sound quality of any component. Yamaha uses only very high quality parts, carefully selected and tested.
Pure Direct Mode for Greater Sound Purity
The Pure Direct mode causes the music signals to travel the shortest possible circuit route, bypassing the buffer amp and the tone, loudness and balance controls to virtually eliminate any signal degradation for the purest sound quality.
Continuously Variable Loudness Control
This receiver features an 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.
This model has gold-plated terminals ensure a high quality connection that prevents signal loss.
A built-in USB DAC function allows direct connection to a PC and reproduction of today's popular high resolution sound sources. The Yamaha-developed USB device controller IC has its own master clock that eliminates PC jitter for high resolution signal transmission.
Connection for YBA-11 Bluetooth Wireless Adapter
With the YBA-11, you’ll be able to stream music wirelessly from a Bluetooth capable mobile phone or a PC to the Network receiver. Thanks to the digital connection and aptX® audio coding algorithm, you’ll enjoy wireless music streaming with optimum sound quality. You can also conveniently power the YBA-11 via the DC-out connection on the rear panel of the amplifier.
Speaker A, B or A+B Selection and Speaker Terminals for Two Systems
You can connect two separate speaker systems in different rooms and switch between them, or have them both playing at the same time. There are four terminals, so by just pushing a button, you can switch speakers to match the sound source.
Auto Power Standby Function
The amplifier has a power management function that detects when it hasn't been used for a long time (about 8 hours) even though the power is on, and automatically shifts it into standby mode. So even if you forget to turn it off, power consumption will be minimised.
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• Maximum Power: 160 W + 160 W • High Dynamic Power/Channel (8/6/4/2 ohms): 140/170/220/290 W • Minimum RMS Output Power (8 ohms, 20 Hz-20 kHz): 100 W + 100 W (0.019% THD)
Total harmonic distortion
Frequency range (Hz)
10 Hz - 100 kHz +/-1.0 dB
On the receiver
• High Strength Chassis Contributes to High Density Sound and High Purity Audio Reproduction • High sound quality circuit design based on the ToP-ART (Total Purity Audio Reproduction Technology) concept • High Quality Parts for Outstanding Audio Performance • Pure Direct Mode for Greater Sound Purity • Continuously Variable Loudness Control • Gold-plated Terminals • USB DAC • Connection for YBA-11 Bluetooth Wireless Adapter • Speaker A, B or A+B Selection and Speaker Terminals for Two Systems • Auto Power Standby Function • The D/A converter for the A-S801 is the ES9010K2M from ESS Technology, Inc. • Digital Audio Input for TV and/or Blu-ray Player • Subwoofer Terminal • Phono MM Terminal • Rotary Encoder Input Selector with LEDs