Product comparison · 2 av receivers

Yamaha RX-A670 7.2 channels Surround 3D Black vs Yamaha RX-A870 7.2 channels Surround 3D Black

46specifications compared
13differ
33identical
28known for one product only

Key differences

Dynamic power per channel (4 Ohm)
- RX-A670 7.2 channels Surround 3D Black:170 W
- RX-A870 7.2 channels Surround 3D Black:195 W
Output level
- RX-A670 7.2 channels Surround 3D Black:100 mV
- RX-A870 7.2 channels Surround 3D Black:470 mV
Output impedance
- RX-A670 7.2 channels Surround 3D Black:470 Ω
- RX-A870 7.2 channels Surround 3D Black:1700 Ω
HDMI in
- RX-A670 7.2 channels Surround 3D Black:4
- RX-A870 7.2 channels Surround 3D Black:8
Composite video in
- RX-A670 7.2 channels Surround 3D Black:3
- RX-A870 7.2 channels Surround 3D Black:1
Audio (L/R) in
- RX-A670 7.2 channels Surround 3D Black:4
- RX-A870 7.2 channels Surround 3D Black:5
Digital audio optical in
- RX-A670 7.2 channels Surround 3D Black:1
- RX-A870 7.2 channels Surround 3D Black:2
Number of HDMI outputs
- RX-A670 7.2 channels Surround 3D Black:1
- RX-A870 7.2 channels Surround 3D Black:2

Side by side

Differences highlightedShow differences only

Comparison of RX-A670, RX-A870
74 specifications	A Yamaha RX-A670 7.2 channels Surround 3D Black Model RX-A670 View product	B Yamaha RX-A870 7.2 channels Surround 3D Black Model RX-A870 View product
Audio3 differ
Power output per channel (1KHz@8 Ohm)Known for one	Unknown — not stated by the source	160 W
Dynamic power per channel (4 Ohm)Differs	170 W	195 W
Dynamic power per channel (8 Ohm)Known for one	Unknown — not stated by the source	130 W
Output levelDiffers	100 mV	470 mV
Total Harmonic Distortion (THD)Known for one	Unknown — not stated by the source	10%
Output impedanceDiffers	470 Ω	1700 Ω
Frequency rangeKnown for one	Unknown — not stated by the source	10 - 100000 Hz
RMS rated powerKnown for one	Unknown — not stated by the source	200 W
Power output per channel (1KHz@6 Ohm)Known for one	145 W	Unknown — not stated by the source
Pre-out connectivityKnown for one	Yes	Unknown — not stated by the source
Inputs4 differ
HDMI inDiffers	4	8
Component video (YPbPr/YCbCr) inKnown for one	Unknown — not stated by the source	1
Composite video inDiffers	3	1
Audio (L/R) inDiffers	4	5
Digital audio optical inDiffers	1	2
Remote (IR) inputKnown for one	Unknown — not stated by the source	1
Ethernet LAN (RJ-45) portsKnown for one	Unknown — not stated by the source	1
Outputs1 differ
Number of HDMI outputsDiffers	1	2
Remote (IR) outputKnown for one	Unknown — not stated by the source	1
Composite video outKnown for one	1	Unknown — not stated by the source
Ports & interfacesidentical
12V triggerKnown for one	Unknown — not stated by the source	Yes
12V trigger ports quantityKnown for one	Unknown — not stated by the source	1
Phono inputs (RCA)Known for one	Unknown — not stated by the source	1
Networkidentical
Bluetooth versionKnown for one	2.1+EDR	Unknown — not stated by the source
Bluetooth profilesKnown for one	A2DP, AVRCP	Unknown — not stated by the source
Radio1 differ
Internet radio services supportedDiffers	JUKE, Qobuz, Deezer, Pandora, Tidal	Deezer, Napster, Pandora, Spotify, Tidal
Auto digital tuningKnown for one	Yes	Unknown — not stated by the source
Preset stations quantityKnown for one	40	Unknown — not stated by the source
Optical driveidentical
Optical drive includedKnown for one	Unknown — not stated by the source	No
Videoidentical
Analog signal format systemKnown for one	Unknown — not stated by the source	NTSC, PAL, SECAM
Supported video modesKnown for one	480i, 480p, 576i, 576p, 720p, 1080i, 1080p	Unknown — not stated by the source
Technical details1 differ
Audio decodersDiffers	DSD, DTS, DTS Digital Plus, DTS-HD Master Audio, DTS:X, Dolby Atmos, Dolby Digital Plus, Dolby Surround, Dolby TrueHD	DTS 96/24, DTS Digital Plus, DTS Digital Surround, DTS-ES, DTS-ES (Matrix 6.1), DTS-HD, DTS:X, Dolby Atmos, Dolby Digital, Dolby Digital EX, Dolby Digital Plus, Dolby Surround, Dolby TrueHD
Damping factorKnown for one	Unknown — not stated by the source	100
Detachable power cordKnown for one	Unknown — not stated by the source	Yes
On Screen Display (OSD) languagesKnown for one	Unknown — not stated by the source	German, English, Spanish, French, Italian, Japanese, Russian
RS-232 interfaceKnown for one	Unknown — not stated by the source	Yes
Video compression formatsKnown for one	Unknown — not stated by the source	MPEG1, MPEG4
Sustainability certificatesKnown for one	ENERGY STAR	Unknown — not stated by the source
Weight & dimensions3 differ
DepthDiffers	330 mm	382 mm
HeightDiffers	225.5 mm	171 mm
WeightDiffers	8.3 kg	10.5 kg

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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