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Yamaha A-S801 Amplifier

- High efficiency ESS 32bit DAC (ES9010K2M)
- High strength chassis contributes to high purity audio reproduction
- Double-bottom chassis for excellent vibration damping
- Custom-made power transformer / Aluminium-extruded heat sinks
- 160W x 2 (max), 100W x 2 (RMS) high power output
- Gold-plated speaker terminals and RCA terminals
- Digital audio inputs for TV or Blu-ray Player
- Connection for YBA-11 Bluetooth Wireless Adapter
Manufacturer: Yamaha
SKU: 49347
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£799.95
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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.


In order to effectively dampen the vibrations that have adverse effects on sound quality, the A-S801 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.


In order to effectively dampen the vibrations that have adverse effects on sound quality, the A-S801 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.


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.


Custom-made power transformer, custom-made block capacitors, two direct signal path speaker relays, onepoint 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.


With a straight connection to the CD input, CD Direct Amplification maximises CD source S/N ratio. Additionally, engaging 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.


The A-S801 also feature 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 highfrequency 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.


The D/A converter for the A-S801 is the ES9010K2M from ESS Technology, Inc. We selected this after careful examination of all points—not only its high precision processing of 32-bit audio, but also the ability to handle large amounts of audio data with full PCM 384kHz,DSD 5.6MHz native reproduction, strength in the low register, and high quality definition in the high register. Since the built-in D/A converter generates its own master clock, an original Jitter Elimination function is also included, permitting D/A conversion with extremely low impact of clock jitter. Moreover, a 2-channel D/A converter is housed inside the chip, and applies double differential operation. The result is exceptionally high performance and high quality signal output with superior signal-to-noise ratio.


he A-S801 equipped for digital audio input with both optical and coaxial terminals. The optical is for receiving audio from a TV, and the coaxial for receiving audio from a Blu-ray player. The audio stays in the digital domain, giving you pure, pristine dynamic sound for all your entertainment sources, from sports and other programs to movies and concerts.


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.

Products specifications
Amplifier power (watts) Minimum RMS Output Power: 100W + 100W
Maximum Power: 160W + 160W
Extra Frequency Response: 10 Hz - 100 kHz +/-1.0 dB
Total Harmonic Disortion: 0.019% (50 W/8 ohms)
Signal-to-Noise Ratio: 99dB (input shorted, 200mV)
Pure Direct: Yes
ToP-ART: Yes
Switchable CD Direction Amplification: Yes
Finish Black or Silver
Inputs x8 Audio in
Optical/Coaxial Digital input
USB input (type B)
Outputs

x2 Audio out
Subwoofer output
DC output

Power supply Power Management (Auto Power Standby): Yes
Standby Power Consumption: 0.5W
Supplied accessories Remote control
Batteries x2
Power cable
W x H x D (mm) 435 x 152 x 387
Weight (kg) 12.1
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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.


In order to effectively dampen the vibrations that have adverse effects on sound quality, the A-S801 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.


In order to effectively dampen the vibrations that have adverse effects on sound quality, the A-S801 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.


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.


Custom-made power transformer, custom-made block capacitors, two direct signal path speaker relays, onepoint 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.


With a straight connection to the CD input, CD Direct Amplification maximises CD source S/N ratio. Additionally, engaging 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.


The A-S801 also feature 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 highfrequency 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.


The D/A converter for the A-S801 is the ES9010K2M from ESS Technology, Inc. We selected this after careful examination of all points—not only its high precision processing of 32-bit audio, but also the ability to handle large amounts of audio data with full PCM 384kHz,DSD 5.6MHz native reproduction, strength in the low register, and high quality definition in the high register. Since the built-in D/A converter generates its own master clock, an original Jitter Elimination function is also included, permitting D/A conversion with extremely low impact of clock jitter. Moreover, a 2-channel D/A converter is housed inside the chip, and applies double differential operation. The result is exceptionally high performance and high quality signal output with superior signal-to-noise ratio.


he A-S801 equipped for digital audio input with both optical and coaxial terminals. The optical is for receiving audio from a TV, and the coaxial for receiving audio from a Blu-ray player. The audio stays in the digital domain, giving you pure, pristine dynamic sound for all your entertainment sources, from sports and other programs to movies and concerts.


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.

Products specifications
Amplifier power (watts) Minimum RMS Output Power: 100W + 100W
Maximum Power: 160W + 160W
Extra Frequency Response: 10 Hz - 100 kHz +/-1.0 dB
Total Harmonic Disortion: 0.019% (50 W/8 ohms)
Signal-to-Noise Ratio: 99dB (input shorted, 200mV)
Pure Direct: Yes
ToP-ART: Yes
Switchable CD Direction Amplification: Yes
Finish Black or Silver
Inputs x8 Audio in
Optical/Coaxial Digital input
USB input (type B)
Outputs

x2 Audio out
Subwoofer output
DC output

Power supply Power Management (Auto Power Standby): Yes
Standby Power Consumption: 0.5W
Supplied accessories Remote control
Batteries x2
Power cable
W x H x D (mm) 435 x 152 x 387
Weight (kg) 12.1
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