Sony STR-DH770 vs Yamaha RX-A850: Comprehensive Comparison

1. Overview

Here we are comparing Sony STR-DH770 to Yamaha RX-A850 to reveal their common strengths and weaknesses as well as the differences between them which will help you in making a correct decision before the purchase. Both receivers have 7 channel amplifiers.

Sony STR-DH770	Yamaha RX-A850
Sony STR-DH770 was introduced in 2016. It is equipped with 7 channel amplifier with 90 W (6 Ω, 20 Hz - 20 kHz and 2 channel driven) power per channel and is capable of 7.1 maximum channel processing. It , passes 4K/60Hz video signal.	Yamaha RX-A850 was introduced in 2015. It is equipped with 7 channel amplifier with 100 W (8 Ω, 20 Hz - 20 kHz and 2 channel driven) power per channel and is capable of 7.1 maximum channel processing. It supports Dolby Atmos, passes 4K/60Hz and upscales up to 4K 60p 4:4:4 video signal.

We evaluated Sony STR-DH770 and Yamaha RX-A850 and gave them scores of 68 and 85 out of 100 recpectively. Our ranking system is based on the amplifier specifications, audio and video features, connectivity, multizone capabilities, radio and many other details.

Sony STR-DH770

Yamaha RX-A850

Amplifier

67

Amplifier

89

Audio Features

66

Audio Features

81

Video Features

84

Video Features

83

Connectivity

63

Connectivity

87

Zones

55

Zones

81

Radio

52

Radio

84

OVERALL

68

OVERALL

85

For more details about the ranking please go to Evaluations section.

2. Pros and Cons

In this section we present pros and cons of Sony STR-DH770 and Yamaha RX-A850.

PROS

Sony STR-DH770

Yamaha RX-A850

DSD via HDMI
Auto Speaker Calibration System with Mic.
HDR10
New HDCP Version
Bluetooth
USB Input
Composite Video Inputs
Analog Tuner

Dolby Atmos
DSD via HDMI
Auto Speaker Calibration System with Mic.
HDR10
New HDCP Version
Analog To HDMI Upconversion
Wi-Fi
Bluetooth
Works with Amazon Alexa
8 HDMI Inputs
USB Input
Phono Input
RCA Pre-Outs
Composite Video Inputs
Component Video Inputs
Ethernet
Analog Tuner
Spotify

CONS

Sony STR-DH770

Yamaha RX-A850

No Front Wide Channel Support
No Dolby Atmos
No Dolby Atmos Height Virtualization
No DTS:X
No IMAX Enhanced
No Auro 3D with Auro-Matic Upmixer
No 360 Reality Audio
No HDR10+
No Dolby Vision
No eARC
No 8K Passthrough
No Wi-Fi
Does not Work with Amazon Alexa
4 HDMI Inputs
1 HDMI Outputs
0 8K Input
No Phono Input
No RCA Pre-Outs
No Ethernet
No Zones
No Digital Radio
No Pandora
No Spotify
No Tidal

No Front Wide Channel Support
No Dolby Atmos Height Virtualization
No DTS:X
No IMAX Enhanced
No Auro 3D with Auro-Matic Upmixer
No HDR10+
No Dolby Vision
No eARC
No 8K Passthrough
0 8K Input
No Digital Radio
No Pandora
No Tidal
Bluetooth 2․1 + EDR

And here are some specifications which fall into average criteria and are neither in PROs nor in CONs category:

AVERAGE

Sony STR-DH770

Yamaha RX-A850

7.2 Channels
Power Output - 90 W
7.1 Channel Processing
RCA Line Inputs
Bluetooth 4․2

7.2 Channels
Power Output - 100 W
7.1 Channel Processing
2 HDMI Outputs
RCA Line Inputs
2 Zones

3. Advantage of Sony STR-DH770

This section shows those features and specifications which are the reason to choose Sony STR-DH770 over Yamaha RX-A850.

Check the Price

Sony STR-DH770

	Sony STR-DH770	vs	Yamaha RX-A850
BT.2020 color space		vs
Speaker A/B		vs
Newer Bluetooth Version	4․2	vs	2․1 + EDR

4. Advantage of Yamaha RX-A850

This section shows those features and specifications which are the reason to choose Yamaha RX-A850 over Sony STR-DH770.

Check the Price

Yamaha RX-A850

	Sony STR-DH770	vs	Yamaha RX-A850
Higher Power Output	90 W (6 Ω, 20 Hz - 20 kHz, 2 channel driven)	vs	100 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
Certified 4 Ω Performance		vs
Dolby Atmos		vs
Dolby Surround Upmixer		vs
Music Playback via USB	MP3, WMA, AAC, WAV	vs	MP3, WMA, AAC, Apple Lossless, WAV, FLAC, AIFF, DSD
Higher Resolution Music Playback via USB		vs	up to 192 kHz
DSD via USB		vs	2-ch Input
Dialogue Lift		vs	no presence speakers required
Video Signal Upscaling		vs	up to 4K 60p 4:4:4
Analog To HDMI Upconversion		vs	Component, Composite**
Wi-Fi		vs	with Wireless Direct
Works with Amazon Alexa		vs	on MusicCast (Voice control using your Alexa device like Echo, Dot, Tap and Show)
DLNA 1.5		vs
AirPlay		vs	AirPlay
More HDMI Inputs	4	vs	8 (1 front)
More HDMI Outputs	1	vs	2
More Optical Inputs	1	vs	2
More Coaxial Inputs/Outputs	1	vs	2
More RCA Line Inputs	4	vs	5 (1 front)
Phono Input		vs
More RCA Pre-Outs	0.2	vs	7.2
More Composite Video Inputs	2	vs	5 (1 front)
More Component Video Inputs		vs	2
More Component Video Outputs		vs	1
Ethernet		vs
Front A/V Inputs	USB	vs	HDMI, USB, Analog Audio, Composite Video
Detachable Power Cord		vs
More Zones	1	vs	2
RS-232C Interface		vs
+12V Trigger Output	0	vs	1
Remote (IR) Input/Output	0 / 0	vs	1 / 1
Analog Tuner	FM with RDS	vs	FM/AM
More Presets	30 (30/-)	vs	40
Spotify		vs
SiriusXM		vs
More Speaker Terminals	7	vs	9
More Large Speaker Terminals	7	vs	9
Bigger Power Supply	240 W	vs	300 W
Higher S/N Ratio (Line, IHF-A)	105 dB (500 mV)	vs	110 dB
Longer Warranty	2 Years	vs	3 Years

5. Common Strengths and Weaknesses

We already listed pros and cons of each model. However, you may also find useful to look at their common strengths and weaknesses shown side-by-side.

STRENGTHS	Sony STR-DH770	Yamaha RX-A850
DSD via HDMI	2-ch/Multi-ch Input	2-ch/Multi-ch Input
Auto Speaker Calibration System with Mic.	D.C.A.C.	YPAO sound optimization (R.S.C. with Multipoint measurement)
HDR10
New HDCP Version	2.2	2.2
Bluetooth	SBC, AAC
USB Input	1 (Front)	iPod^® / iPhone^®, USB memory, portable audio player
Composite Video Inputs	2	5 (1 front)
Analog Tuner	FM with RDS	FM/AM

WEAKNESSES	Sony STR-DH770	Yamaha RX-A850
No Front Wide Channel Support
No Dolby Atmos Height Virtualization
No DTS:X
No IMAX Enhanced
No Auro 3D with Auro-Matic Upmixer
No HDR10+
No Dolby Vision
No eARC
No 8K Passthrough	up to 4K/60p (YCbCr4:4:4)	up to 4K/60p 4:4:4
Few 8K Inputs
No Digital Radio
No Pandora
No Tidal

6. Amplifier

Sony STR-DH770	Yamaha RX-A850
7 channel Amplifier: Sony STR-DH770 features 7 channel power amplifier. It is rated at 90 W (6 Ω, 20 Hz - 20 kHz, 2 channel driven).	7 channel Amplifier: Yamaha RX-A850 features 7 channel power amplifier. It is rated at 100 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) and is able to drive 4 ohm speakers.

AMPLIFIER	Sony STR-DH770	Yamaha RX-A850
Channels	7.2	7.2
Power Output	90 W (6 Ω, 20 Hz - 20 kHz, 2 channel driven)	100 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
Front Wide Channel Support
THX™ Certification
Continuous 6 Ω Rated
Certified 4 Ω Performance
Bi-amp Capability

7. Speaker Configurations

Sony STR-DH770's and Yamaha RX-A850's amplifiers can be assigned for different speaker configurations.

Dolby Atmos Configurations: The following speaker configurations are supported for Dolby Atmos:

Sony STR-DH770: Not supported.

Yamaha RX-A850: 5.2.2 with internal amplifier.

Configurations without height channels: There are also other speaker configurations available which do not include height channels:

Sony STR-DH770: 5.2, 7.2 with internal amplifier.

Yamaha RX-A850: 5.2, 7.2 with internal amplifier.

2-ch Bi-Amp: Both models are able to bi-amp up to 2 main channels simultaneously. During bi-amplification two amplifiers are used for one speaker. One amplifier powers the midrange and tweeter section of the speaker and another amplifier powers the low frequency woofers. Each amplifier is less loaded and performs better. In order to use this feature speakers must have 2 pairs of connectors.

8. Immersive Audio Formats

Dolby Atmos

Yamaha RX-A850 supports Dolby Atmos.

Dolby Surround Upmixer: Yamaha RX-A850 supports Dolby Surround Upmixer. If the content is not mixed in Dolby Atmos then the Dolby surround upmixer will expand the audio to all channels including ceiling speakers. The upmixer has replaced the Dolby Pro Logic II family with improved upmixing algorithms.

AUDIO DECODING	Sony STR-DH770	Yamaha RX-A850
Dolby Atmos
Dolby Atmos Height Virtualization
Dolby Atmos Music
Dolby TrueHD
Dolby Digital Plus
Dolby Surround Upmixer
Dolby Pro Logic	PLIIx	PLIIx
Dolby Digital EX
DTS:X
DTS Neural:X
DTS Virtual:X
DTS Neo	Neo:6	Neo:6
DTS-HD Master Audio
DTS-HD High Resolution Audio
DTS 96/24
DTS Express
DTS-ES	Discrete 6.1, Matrix 6.1	Discrete 6.1, Matrix 6.1
IMAX Enhanced
Auro 3D with Auro-Matic Upmixer

9. HDMI

Sony STR-DH770 comes with 4 HDMI inputs. It has 1 output.

Yamaha RX-A850 comes with 8 HDMI inputs. It has 2 outputs which work parallelly and output the same signal.

4K/60Hz Passthrough: On both receivers all inputs pass up to 4K/60p (YCbCr4:4:4) video signal.
4K Upscaling on Yamaha RX-A850: It can upscale up to 4K 60p 4:4:4 from HDMI and analog sources.
Analog To HDMI Upconversion: Yamaha RX-A850 supports analog to HDMI Upconversion, so you can input your analog video sources and output them digitally via HDMI. This means that you will need only one HDMI cable to connect to your TV.
BT.2020 Color Space: BT.2020 or Rec. 2020 is a color standard which delivers a wider color gamut compared to Rec. 709. It covers approximately 75% of the total visual spectrum while the Rec. 709 covers only 35% (available on Sony STR-DH770 only).
HDCP 2.2 Copy Protection: Both receivers are HDCP 2.2 compliant which is a requirement for 4K/HDR copy-protected content transmission.
3D Ready: Both receivers are able to pass 3D video through HDMI.

HDR (High Dynamic Range)

Both receivers support HDR10 High dynamic range video has greater dynamic range than standard dynamic range (SDR) video with brighter whites and deeper blacks. The result is greater contrast and more details in dark and bright areas, better color and depth.

VIDEO FEATURES	Sony STR-DH770	Yamaha RX-A850
HDR10
HDR10+
Dynamic HDR
BT.2020 color space
Dolby Vision
HLG (Hybrid Log Gamma)
HDBaseT Compatible
Enhanced Audio Return Channel (eARC)
HDCP Version	2.2	2.2
QMS (Quick Media Switching)
ALLM (Auto Low Latency Mode)
VRR (Variable Refresh Rate)
QFT (Quick Frame transport)
3-D Ready
Video Signal Passthrough	up to 4K/60p (YCbCr4:4:4)	up to 4K/60p 4:4:4
Video Signal Upscaling		up to 4K 60p 4:4:4

10. Inputs and Outputs

Audio

Phono Input: There is an MM phono input on Yamaha RX-A850 with built-in phono stage for connecting the moving magnet cartridge output of the turntable directly to the receiver.
Analog Pre-Outs: Yamaha RX-A850 has 7.2 preamplifier outputs which allows you to connect the receiver to the external power amplifier. You may want to use a high quality external amplifier for certain channels, usually for front L/R and center, and use the receiver to power the rest. Also, both receivers have 7 channel processing but have only 7 channel amplifiers, so they need external amplifiers connected to the analog pre-outs in order to reach their maximum speaker configurations.
Analog Line Inputs: There are 4 pair of line inputs on Sony STR-DH770 and 5 pair of line inputs on Yamaha RX-A850 for connecting sources with analog outputs.
Digital Inputs: 1 optical input and 1 coaxial input are available on Sony STR-DH770 and 2 optical inputs and 2 coaxial inputs are available on Yamaha RX-A850 for digital audio connections.
Headphone Output: There is a 6.3 mm (1/4") headphone output jack on the front panel of each receiver.

Video

HDMI:

Sony STR-DH770
Inputs: 4 Outputs: 1
8K Inputs: 0.

Yamaha RX-A850
Inputs: 8 (1 front) Outputs: 2
8K Inputs: 0.

Composite Video: Connect you VCR, Laserdisc player and other old video equipment with composite video cables.

Sony STR-DH770
Inputs: 2 Outputs: 1.

Yamaha RX-A850
Inputs: 5 Outputs: 1.

Component Video: Component video connection gives you the higher quality video compared to the composite video connection. So in case your old DVD player and other equipment do not have an HDMI output but have Component video output use this connection over the composite one. resolution on Component video connectors.
Yamaha RX-A850 supports up to 1080i resolution on Component video connectors.

Sony STR-DH770
Inputs: 0 Outputs: 0.

Yamaha RX-A850
Inputs: 2 Outputs: 1.

Front A/V Inputs

Sony STR-DH770: USB
Yamaha RX-A850: HDMI, USB, Analog Audio, Composite Video

Sony STR-DH770

Yamaha RX-A850

TERMINALS	Sony STR-DH770	Yamaha RX-A850
HDMI Inputs	4	8 (1 front)
HDMI Outputs	1	2
8K Inputs
USB Input	1 (Front)	iPod^® / iPhone^®, USB memory, portable audio player
USB DC Out Port
Optical Inputs	1	2
Optical Outputs
Coaxial Inputs	1	2
RCA Line Inputs	4	5 (1 front)
RCA Line Outputs
XLR Line Inputs
Phono Input
Multi-Channel Input
RCA Pre-Outs	0.2	7.2
XLR Pre-outs
Composite Video Inputs	2	5 (1 front)
Composite Video Outputs	1	1
S-Video Inputs
S-Video Outputs
Component Video Inputs		2
Component Video Outputs		1

11. Evaluations

We evaluated Sony STR-DH770 and Yamaha RX-A850 and gave them scores of 68 and 85 out of 100 recpectively. We also gave separate scores for 7 different categories according to the available features and specifications some of which are listed below. These evaluations are relative and may change each time a new receiver is added to the database.

Sony STR-DH770

Yamaha RX-A850

OVERALL

68

OVERALL

85

Amplifier

AVERAGE

67

7.2 Channels
Power Output - 90 W

EXCELLENT

89

7.2 Channels
Power Output - 100 W

Audio Features

AVERAGE

66

7.2 Channels
No Front Wide Channel Support
7.1 Channel Processing
No Dolby Atmos
No Dolby Atmos Height Virtualization
No DTS:X
No IMAX Enhanced
No Auro 3D with Auro-Matic Upmixer
No 360 Reality Audio
DSD via HDMI

GOOD

81

7.2 Channels
No Front Wide Channel Support
7.1 Channel Processing
Dolby Atmos
No Dolby Atmos Height Virtualization
No DTS:X
No IMAX Enhanced
No Auro 3D with Auro-Matic Upmixer
DSD via HDMI

Video Features

GOOD

84

HDR10
No HDR10+
No Dolby Vision
No 8K Passthrough

GOOD

83

HDR10
No HDR10+
No Dolby Vision
No 8K Passthrough
Analog To HDMI Upconversion

Connectivity

AVERAGE

63

No eARC
New HDCP Version
No Wi-Fi
Bluetooth
Does not Work with Amazon Alexa
4 HDMI Inputs
1 HDMI Outputs
0 8K Input
USB Input
RCA Line Inputs
No Phono Input
No RCA Pre-Outs
Composite Video Inputs
No Ethernet
Bluetooth 4․2

EXCELLENT

87

No eARC
New HDCP Version
Wi-Fi
Bluetooth
Works with Amazon Alexa
8 HDMI Inputs
2 HDMI Outputs
0 8K Input
USB Input
RCA Line Inputs
Phono Input
RCA Pre-Outs
Composite Video Inputs
Component Video Inputs
Ethernet
Bluetooth 2․1 + EDR

Zones

AVERAGE

55

No Zones

GOOD

81

2 Zones

Radio

POOR

52

Analog Tuner
No Pandora
No Spotify
No Tidal

GOOD

84

Analog Tuner
No Pandora
Spotify
No Tidal

12. Specifications

GENERAL	Sony STR-DH770	Yamaha RX-A850
Brand	Sony	Yamaha
Series		Aventage
Model	STR-DH770	RX-A850
Type	A/V Receiver	A/V Receiver
Country	USA, Canada and Taiwan	Korea
Release Year	2016	2015
Predecessor		Yamaha RX-A840
Successor	Sony STR-DH790	Yamaha RX-A860

AMPLIFIER	Sony STR-DH770	Yamaha RX-A850
Channels	7.2	7.2
Power Output	90 W (6 Ω, 20 Hz - 20 kHz, 2 channel driven)	100 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
Front Wide Channel Support
THX™ Certification
Continuous 6 Ω Rated
Certified 4 Ω Performance
Bi-amp Capability

AUDIO FEATURES	Sony STR-DH770	Yamaha RX-A850
Surround:AI™
DAC		Burr-Brown
DAC Specs		192 kHz/24 Bit
Maximum Channel Processing	7.1	7.1
Air Studios Monitor Certification
Dolby Atmos
Dolby Atmos Height Virtualization
Dolby Atmos Music
Dolby TrueHD
Dolby Digital Plus
Dolby Surround Upmixer
Dolby Pro Logic	PLIIx	PLIIx
Dolby Digital EX
Surround EX
DTS:X
DTS Neural:X
DTS Virtual:X
DTS Neo	Neo:6	Neo:6
DTS-HD Master Audio
DTS-HD High Resolution Audio
DTS 96/24
DTS Express
DTS-ES	Discrete 6.1, Matrix 6.1	Discrete 6.1, Matrix 6.1
IMAX Enhanced
Auro 3D with Auro-Matic Upmixer
360 Reality Audio
PCM	2-ch/Multi-ch Input	2-ch/Multi-ch Input
Network Audio Formats		MP3, WMA, MPEG-4 AAC, Apple Lossless, WAV, FLAC, AIFF, DSD
Music Playback via USB	MP3, WMA, AAC, WAV	MP3, WMA, AAC, Apple Lossless, WAV, FLAC, AIFF, DSD
High Resolution Music Playback via USB and/or Network		up to 192 kHz
High Resolution Audio Formats via USB		Apple Lossless, WAV, FLAC, AIFF, DSD
Gapless Playback
DSD via HDMI	2-ch/Multi-ch Input	2-ch/Multi-ch Input
DSD via USB		2-ch Input
DSD to PCM Converter
USB DAC
DTS Dialogue Control
Dialog Level Adjustment
Dialog normalization
Dialogue Lift		no presence speakers required
Digital Legato Linear
In-Ceiling Speaker Mode
OP Processing
Sound Optimizer
Tone Control	All Channels
Compressed Music Enhancer		including for Bluetooth^®
High-resolution Music Enhancer
Adaptive DRC (Dynamic Range Control)
Initial Volume & Maximum Volume Setting
Audyssey Dynamic EQ
Audyssey Dynamic Volume
Audyssey LFC
Audyssey Sub EQ HT
Audyssey DSX
Direct Mode
Straight Decoding Mode
Pure Direct Mode		with Video On mode
CINEMA DSP		3D
DSP Programs		17
SILENT CINEMA / Virtual CINEMA DSP		Virtual CINEMA FRONT
Virtual Speakers		including surround back

CALIBRATION	Sony STR-DH770	Yamaha RX-A850
Auto Speaker Calibration System with Mic.	D.C.A.C.	YPAO sound optimization (R.S.C. with Multipoint measurement)
Calibration Microphone	Mono
Speaker Relocation
Automatic Phase Matching
YPAO Volume
PEQ for SUB		Down to 31 Hz

VIDEO FEATURES	Sony STR-DH770	Yamaha RX-A850
HDR10
HDR10+
Dynamic HDR
BT.2020 color space
Dolby Vision
HLG (Hybrid Log Gamma)
HDBaseT Compatible
Enhanced Audio Return Channel (eARC)
HDCP Version	2.2	2.2
QMS (Quick Media Switching)
ALLM (Auto Low Latency Mode)
VRR (Variable Refresh Rate)
QFT (Quick Frame transport)
3-D Ready
Video Signal Passthrough	up to 4K/60p (YCbCr4:4:4)	up to 4K/60p 4:4:4
Video Signal Upscaling		up to 4K 60p 4:4:4
Analog To HDMI Upconversion		Component**, Composite
Component Video Upscaling
Analog to Analog Video conversion
Component Video Maximum Resolution		1080i
Video Parameter Adjustments
isf Certified Calibration Control

CONNECTIVITY	Sony STR-DH770	Yamaha RX-A850
Wi-Fi		with Wireless Direct
Bluetooth	SBC, AAC
Works with Amazon Alexa		on MusicCast (Voice control using your Alexa device like Echo, Dot, Tap and Show)
Chromecast Built-In
Works with SonoS
DTS Play-Fi
MHL Input
DLNA 1.5
Music Connect
MusicCast
Remote Monitoring with ihiji
AirPlay		AirPlay
Apple Product Connection	iPod, iPhone	iPod, iPhone and iPad
Remote App		(iPhone^® / iPad^® / Android™ phone / tablet)
InstaPrevue Input Source Prevue

TERMINALS	Sony STR-DH770	Yamaha RX-A850
HDMI Inputs	4	8 (1 front)
HDMI Outputs	1	2
8K Inputs
USB Input	1 (Front)	iPod^® / iPhone^®, USB memory, portable audio player
USB DC Out Port
Optical Inputs	1	2
Optical Outputs
Coaxial Inputs	1	2
RCA Line Inputs	4	5 (1 front)
RCA Line Outputs
XLR Line Inputs
Phono Input
Multi-Channel Input
RCA Pre-Outs	0.2	7.2
XLR Pre-outs
Composite Video Inputs	2	5 (1 front)
Composite Video Outputs	1	1
S-Video Inputs
S-Video Outputs
Component Video Inputs		2
Component Video Outputs		1
Ethernet
Ethernet Switch
PC In
Front A/V Inputs	USB	HDMI, USB, Analog Audio, Composite Video
Speaker A/B
Headphone Out	6.3 mm (1/4")	6.3 mm (1/4")
Detachable Power Cord
dockport

ZONES	Sony STR-DH770	Yamaha RX-A850
Number of Zones	1	2
Powered Zones		Zone 2
Zone 2 Outs		Line output
Zone B Video Output		HDMI
Zone GUI
RS-232C Interface
+12V Trigger Output	0	1
Remote (IR) Input/Output	0 / 0	1 / 1
Party Mode

MISCELLANEOUS	Sony STR-DH770	Yamaha RX-A850
On-Screen Display	Graphical User Interface (Only through HDMI)	Graphical User Interface
GUI Languages	4
SCENE		SCENE (4 sets)
Web Control
PreAmp Mode

RADIO	Sony STR-DH770	Yamaha RX-A850
Analog Tuner	FM with RDS	FM/AM
Presets	30 (30/-)	40
Digital Radio
Internet Radio		vTuner
Pandora
Spotify
Tidal
Deezer
Napster
SiriusXM

CONSTRUCTION	Sony STR-DH770	Yamaha RX-A850
A.R.T. Wedge
Speaker Terminals	7	9
Large Speaker Terminals	7	9
Color-Coded Speaker Terminals
Gold plated RCA terminals

POWER	Sony STR-DH770	Yamaha RX-A850
Power Supply	AC 120 V, 60 Hz	AC 220 V, 60 Hz
Power Consumption	240 W	300 W
Standby Power	0.3 W	0.1 W
ECO Mode / Hybrid Standby Function
Auto Power Standby

PHYSICAL	Sony STR-DH770	Yamaha RX-A850
Dimensions (W x H x D)	430 mm x 156 mm x 329.4 mm 17" x 6-1/4" x 13"	435 mm x 171 mm x 380 mm (with antenna: 435 mm x 234 mm x 380 mm) 17-1/8" x 6-3/4" x 15" (with antenna up: 17-1/8" x 9-1/4" x 15")
Weight	7.8 kg (17 lbs. 4 oz.)	10.6 kg (23.4 lbs)

SPECIFICATIONS	Sony STR-DH770	Yamaha RX-A850
Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC)		100 W (0.06% THD)
Power Output (8 Ω, 1 kHz, 2 channel Driven, FTC)		110 W (0.9% THD)
Rated Power Output (8 Ω, 1 kHz, 1 channel Driven)		130 W (0.9% THD)
Maximum Effective Output Power (8 Ω, 1 kHz, 1 channel Driven, JEITA)		160 W (10% THD)
Power Output (6 Ω, 20 Hz - 20 kHz, 2 channel driven)	90 W (0.09% THD)
Power Output (6 Ω, 1 kHz, 2 channel driven, FTC)	105 W (1% THD)
Power Output (6 Ω, 1 kHz, 1 channel driven, FTC)	145 W (0.9% THD)
Rated Power Output (4 Ω, 1 kHz, 1 channel Driven)		160 W (0.9% THD, Front)
Dynamic Power per Channel (2 Ω, Front)		240 W
Dynamic Power per Channel (4 Ω, Front)		195 W
Dynamic Power per Channel (6 Ω, Front)		170 W
Dynamic Power per Channel (8 Ω, Front)		130 W
THD		0.06% (AV 5 etc. to Front, Pure Direct, 20 Hz - 20 kHz, 50 W, 8 Ω)
THD (Phono)		0.02% (Phono to SPEAKER OUT (Front), 20 Hz - 20 kHz, 1 V)
Damping Factor		100 (Front, 20 Hz - 20 kHz, 8 Ω)
Input Sensitivity and Impedance (Line)	500 mV/50 kΩ	200 mV/47 kΩ
Input Sensitivity and Impedance (Phono MM)		3.5 mV/47 kΩ
Maximum Input Sensitivity (Line)		2.3 V
Maximum Input Sensitivity (Phono)		60 mV
Rated Preout Level and Impedance	2 V/1 kΩ (Subwoofer)	1.0 V/1.2 kΩ
S/N Ratio (Line, IHF-A)	105 dB (500 mV)	110 dB
S/N Ratio (Phono MM, IHF-A)		96 dB
S/N Ratio (digital)	100 dB (20 kHz LPF)
Frequency Response (Analog In)	10 Hz - 100 kHz/+0.5 dB, -2 dB	+0/-3 dB (10 Hz to 100 kHz)
Residual noise (IHF-A Network)		150 µV (Speaker Out)
Channel Separation at 1 kHz/10 kHz (LINE)		75 dB/50 dB
Channel Separation at 1 kHz/10 kHz (Phono)		60 dB/55 dB
DSD Sampling Rates via HDMI	2.8 MHz	2.8 MHz
DSD Sampling Rates via USB		5.6 MHz, 2.8 MHz
Video Input Sensitivity/Output Level and Impedance	1 Vp-p/75 Ω (Composite)	1 Vp-p/75 Ω (Component Y) 0.7 Vp-p/75 Ω (Component PB/CB, PR/CR) 1 Vp-p/75 Ω (Composite)
Video Maximum Input		1.5 Vp-p
Video Frequency Response		5 Hz to 60 MHz, -3 dB (Component)
Video S/N Ratio		50 dB
Ethernet Standard		10BASE-T/100BASE-TX
Wi-Fi Standard		IEEE 802.11 b/g/n
Wi-Fi Terminal Frequency		2.4 GHz
Bluetooth Version	4․2	2․1 + EDR
Bluetooth Frequency	2.4 GHz
USB Terminal	Type A, Ver. 2.0, 5 V, 1 A	USB2.0 5 V, 1 A
FM Frequency	87.5 MHz - 108.0 MHz	87.50 MHz - 108.00 MHz
FM 50 dB Quiet Sensitivity (IHF, 1 kHz, 100% MOD.)		Mono: 3 µV (20.8 dBf)
FM S/N Ratio		Mono/Stereo: 65 dB/64 dB
FM Harmonic Distortion (IHF, 1 kHz)		Mono/Stereo: 0.5%/0.6%
AM Frequency		531 MHz - 1611 MHz
Warranty	2 Years	3 Years

* - 480i/576i and 480p/576p only
** - 480i/576i only
*** - no 1080p/24 upconversion
**** - 1080p signal is not converted

Sony STR-DH770 vs Yamaha RX-A850

Sony STR-DH770

Yamaha RX-A850

Highlights

Highlights

1. Overview

Sony STR-DH770

Yamaha RX-A850

2. Pros and Cons

PROS

Sony STR-DH770

Yamaha RX-A850

CONS

Sony STR-DH770

Yamaha RX-A850

AVERAGE

Sony STR-DH770

Yamaha RX-A850

3. Advantage of Sony STR-DH770

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4. Advantage of Yamaha RX-A850

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5. Common Strengths and Weaknesses

6. Amplifier

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7. Speaker Configurations

8. Immersive Audio Formats

Dolby Atmos

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9. HDMI

HDR (High Dynamic Range)

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10. Inputs and Outputs

Audio

Video

Front A/V Inputs

Sony STR-DH770

Yamaha RX-A850

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11. Evaluations

Sony STR-DH770

Yamaha RX-A850

Amplifier

Audio Features

Video Features

Connectivity

Zones

Radio

12. Specifications

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