Yamaha RX-A780 vs. Yamaha RX-V677

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Comparison chart

Common

Model

RX-A780
RX-V677

Brand

Yamaha
Yamaha

Rating on Amazon

4.2
4.0

Reviews on Amazon

7
568

Functions

Digital player

Internet radio

Network audio player

Amplifier class

D

Audio formats

AAC

AIFF

Apple lossless

DSD

FLAC

MP3

WAV

WMA

Built-in decoders

DTS neural:X

DTS-HD master audio

DTS:X

Dolby atmos

Dolby digital plus

Dolby surround

Dolby true HD

Power device

Operational power consumption

410 W
400 W

Standby power consumption

0.1 W
0.15 W

Built-in display

Type

fluorescent
fluorescent

Colour

black
black

Amplifier

Total output power

700 W
630 W

Output power per channel

95 W
105 W, 90 W

Output impedance per channel

8 Ohm
8 Ohm

Frequency response

20 Hz-20 kHz
20 Hz-20 kHz

Total harmonic distortion

0.06 %
0.09 %

Number of channels

7
7

Signal-to-noise ratio

100 dB
110 dB

Connectivity interfaces

Bluetooth

Wi-Fi

IEEE 802.3

IEEE 802.3u

Signal processing

HDMI pass-through

up to 4K
up to 4K

Video conversion/scaling

HDMI to HDMI scaling, analog to HDMI up conversion
HDMI to HDMI scaling, analog to HDMI up conversion

3D pass-through

Upscaling via HDMI

up to 4K
up to 4K

Connector type

AV inputs

5
2

Optical digital inputs

2
2

Coaxial digital inputs

2
2

HDMI inputs

5
6

HDMI outputs

2
1

Optical digital outputs

has not
has not

Coaxial digital outputs

has not
has not

Subwoofer outputs

2
2

USB

1
1

Phones

1
1

Media content source

Bluetooth

Network

USB-host

Radio

Tuner type

digital
digital

Tuner bands

AM/FM
AM/FM

Preset station qty

40
40

Additional features

A-B speaker switch

AIR Studios monitor certification

Three-zone capability

X.v.Color

Advanced sound retriever (ASR) technology

Apple air-play support

Audio return channel (ARC)

Bi-amplifying

Deep color

MCACC Pro

Auto power off

Pure direct mode

Dual-zone capability

Smartphone remote control

Sound features

Sound output mode

Surround Sound
Surround Sound

Audio D/A converter

32bit / 384kHz
24bit / 192kHz

Surround sound effects

Virtual CINEMA
CINEMA DSP 3D. SILENT CINEMA DSP. Virtual CINEMA DSP. Virtual CINEMA FRONT. Virtual Presence Speaker

Surround system class

7.2 channel
7.2 channel

Digital sound processor (DSP)

DSP preset qty

17
17

Digital content protection

HDCP 2.2
HDCP 2.2

Clock

Built-in clock

Sleep timer

Dimensions

Shipping size

15 x 17.2 x 6.8 inches
14.4 x 17.1 x 6.8 inches

Product weight

24.3 pounds
22.1 pounds