Equipped with high grade USB DAC functions that use Yamaha Steinberg drivers that are compliant with the latest audio interface "ASIO 2.3" (ES9010K2M) high performance D/A converter, 32-bit / 2CH specification by US ESS Technologies.
Supports DSD5.6 MHz (DSD128) native playback and 384 kHz/32 bit* playback, so you can play high resolution sound source with the original quality.
The front panel is also equipped with a 6-point LED digital signal indicator that shows the digital signal format and sampling frequency while playing.
*Only when typing from Windows PC to USB port Mac supports up to 24-bit

Specifications:
Rated output: 100W + 100W / 8Ω (20Hz - 20kHz, 0.019% THD)
120W+120W/6Ω (20Hz~20kHz, 0.038%THD)
Dynamic Power (IHF): 140W/8Ω, 170W/6Ω, 220W/4Ω, 290W/2Ω
Practical maximum output (JEITA): 145W/8Ω (1kHz, 10% THD).
170W/6Ω(1kHz, 10% THD)
Output bandwidth: 10Hz - 50kHz (0.04% THD, 50W, 8Ω)
Maximum allowable input: PHONO MM: 45 mV or higher (1 kHz 0.03% THD).
CD ect: 2.2V or higher (1kHz 0.5% THD)
Rated output voltage/output impedance: REC OUT: less than 200 mV/1.0 kΩ
Subwoofer OUT: 3.5V/1.2kΩ (Cut-off frequency: 100Hz)
Frequency response: CD etc: 0±0.5dB (20~20kHz)
CD etc.Pure DIRECT ON: 0±1.0dB (10Hz - 100kHz)
RIAA Equalizer Deviation: PHONO MM: ±0.5dB
Total Harmonic Distortion Ratio: PHONO MM → REC OUT: Less than 0.03% (20Hz ~ 20kHz 2.5V)
CD, etc. → SP OUT: 0.019% or less (20Hz - 20kHz 50W/8Ω)
Headphone rated output: CDetc: 470mV/470Ω (1kHz, 200mV, 8Ω)
Tone Control Characteristics: BASS: ±10dB (Boost/Cut 20Hz)
400 Hz (turnover frequency) Treble: ±10 dB (Boost/Cut 20 kHz)
3.5 kHz (turnover frequency)
Input terminals: 9 lines (CD1, Tuner 1, Line 3, Phono [MM] 1
Optical Digital 1, Coaxial Digital 1, USB1)
Output terminal: 5 lines (2 reckouts, 1 subwoofer, 1 headphone, 1 DC out).
Power Consumption: 270 W
Standby power: 0.5W
External Dimensions (W x H x D): 17.1 x 6.0 x 15.2 inches (435 x 152 x
Weight: 26.6 lbs (12.1 kg)
Accessories: Remote control, 2 AAA batteries, power cord (4.9 ft (1.5 m), instruction manual (English language not guaranteed)

Output Wattage	120 Watts
Compatible Media	PC
Brand	ヤマハ(YAMAHA)
Manufacturer	ヤマハ(YAMAHA)
Item model number	A-S801(B)
Connectivity Technology	USB
Batteries Included	No
Package Dimensions	54.29 x 44.1 x 30 cm; 12.1 kg
Product Features	Equalizer, RCA, Subwoofer
Batteries Required	No
Item Weight	12.1 Kilograms

- Yamaha A-S801(B) Primain Amplifier [Black]

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