Onkyo TX-SR373 vs Yamaha RX-S602

Here we are comparing Onkyo TX-SR373 to Yamaha RX-S602 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 5 channel amplifiers with Onkyo TX-SR373's being more powerful.

Onkyo TX-SR373	Yamaha RX-S602
Onkyo TX-SR373 was introduced in 2017. It is equipped with 5 channel amplifier with 80 W (8 Ω, 20 Hz - 20 kHz and 2 channel driven) power per channel and is capable of 5.1 maximum channel processing. It , passes 4K/60Hz video signal.	Yamaha RX-S602 was introduced in 2018. It is equipped with 5 channel amplifier with 55 W (8 Ω, 20 Hz - 20 kHz and 2 channel driven) power per channel and is capable of 5.1 maximum channel processing. It , passes 4K/60Hz and upscales up to 4K 60p 4:4:4 video signal.

We evaluated Onkyo TX-SR373 and Yamaha RX-S602 and gave them scores of 70 and 80 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.

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

This section shows those features and specifications which are the reason to choose Onkyo TX-SR373 over Yamaha RX-S602.

	Onkyo TX-SR373	vs	Yamaha RX-S602
Higher Power Output	80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)	vs	55 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
Analog Tuner	FM/AM with RDS	vs	FM/AM
Bigger Power Supply	220 W	vs	190 W
Higher Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC)	100 W (0.09% THD)	vs	55 W (Front, 0.09% THD)

This section shows those features and specifications which are the reason to choose Yamaha RX-S602 over Onkyo TX-SR373.

	Onkyo TX-SR373	vs	Yamaha RX-S602
Bi-amp capability		vs
Higher DAC Specs	192 kHz/24 Bit	vs	384 kHz/32 Bit
DTS Express		vs
Music Playback via USB	WMA, MP3, AAC	vs	MP3, WMA, AAC, Apple Lossless, WAV, FLAC, AIFF, DSD
Higher Resolution Music Playback via USB		vs	up to 192 kHz/32 Bit
DSD via HDMI	2-ch	vs	2-ch/Multi-ch Input
DSD via USB		vs	2-ch Input
HLG		vs
Enhanced Audio Return Channel (eARC)		vs	via future firmware update
Newer HDCP Version	2.2	vs	2.3
Video Signal Upscaling		vs	up to 4K 60p 4:4:4
Wi-Fi		vs
Works with Amazon Alexa		vs
AirPlay		vs	AirPlay 2 via firmware update
Remote Controll App		vs	(iPhone® / iPad® / Android™ phone / tablet)
More Coaxial Inputs/Outputs	1	vs	2
More RCA Line Inputs	3	vs	4 (1 front)
More Composite Video Inputs	2	vs	3
Ethernet		vs
Front A/V Inputs	USB	vs	USB, mini-jack Audio
More Zones	1	vs	2
More Presets	30	vs	40
Internet Radio		vs
Spotify		vs
Tidal		vs
Deezer		vs
Napster		vs
More Large Speaker Terminals	2	vs	5
Higher S/N Ratio (Line, IHF-A)	106 dB	vs	108 dB
Newer Bluetooth Version	3.0	vs	4․2
Wider AM Frequency Range	530 kHz - 1700 kHz	vs	530/531 kHz - 1710/1611 kHz

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	Onkyo TX-SR373	Yamaha RX-S602
DSD via HDMI	2-ch	2-ch/Multi-ch Input
Auto Speaker Calibration System with Mic.	AccuEQ	YPAO sound optimization
HDR10
Dolby Vision
New HDCP Version	2.2	2.3
Bluetooth	SBC, AAC	SBC, AAC (compatible with SCMS-T.)
USB Input	1 (Front)	USB memory, Portable Audio Player
Composite Video Inputs	2	3
Analog Tuner	FM/AM with RDS	FM/AM

WEAKNESSES	Onkyo TX-SR373	Yamaha RX-S602
Few Channels	5.1	5.1
Low Power Output	80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)	55 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
No Front Wide Channel Support
Channel Processing	5.1	5.1
No Dolby Atmos
No Dolby Atmos Height Virtualization
No DTS:X
No IMAX Enhanced
No Auro 3D with Auro-Matic Upmixer
No HDR10+
No 8K Passthrough	up to 4K/60p (4:4:4)	up to 4K/60p 4:4:4
Few HDMI Inputs	4	4
Few HDMI Outputs	1	1
Few 8K Inputs
No Phono Input
No RCA Pre-Outs	0.1	0.1
No Digital Radio
No Pandora

Onkyo TX-SR373	Yamaha RX-S602
5 channel Amplifier: Onkyo TX-SR373 features 5 channel power amplifier. It is rated at 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven).	5 channel Amplifier: Yamaha RX-S602 features 5 channel power amplifier. It is rated at 55 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven).

AMPLIFIER	Onkyo TX-SR373	Yamaha RX-S602
Channels	5.1	5.1
Power Output	80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)	55 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

Onkyo TX-SR373's and Yamaha RX-S602's amplifiers can be assigned for different speaker configurations.

• Configurations: Available configurations are:
Onkyo TX-SR373: 5.1 with internal amplifier.
Yamaha RX-S602: 5.1 with internal amplifier.
• Bi-Amp: Yamaha RX-S602 is 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.

Onkyo TX-SR373 and Yamaha RX-S602 come with 4 HDMI inputs. It has 1 output.

• 4K/60Hz Passthrough: On both receivers all inputs pass up to 4K/60p (4:4:4) video signal.
• 4K Upscaling on Yamaha RX-S602: It can upscale up to 4K 60p 4:4:4 from HDMI sources.
• 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 both models).
• HDCP Copy Protection: Onkyo TX-SR373 is HDCP 2.2 and Yamaha RX-S602 is HDCP 2.3 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)

Onkyo TX-SR373 supports HDR10 and Dolby Vision.

Yamaha RX-S602 supports HDR10, Dolby Vision and Hybrid Log-Gamma. 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.

Enhanced Audio Return Channel (eARC)

Yamaha RX-S602 supports Audio Return Channel (ARC) which allows the compatible TV to send audio signal to the a/v receiver through the same HDMI cable which is used to send audio and video signals to the TV. So one HDMI cable is used to transfer audio signal in both directions. New Enhanced ARC will support uncompressed audio formats such as Dolby Atmos, DTS:X, Dolby TrueHD and DTS HD Master Audio whereas the previous ARC could support only Dolby Digital, Dolby Digital Plus, DTS, DTS HD, and PCM.

VIDEO FEATURES	Onkyo TX-SR373	Yamaha RX-S602
HDR10
HDR10+
Dynamic HDR
BT.2020 color space
Dolby Vision
HLG (Hybrid Log Gamma)
HDBaseT Compatible
Enhanced Audio Return Channel (eARC)		via future firmware update
HDCP Version	2.2	2.3
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 (4:4:4)	up to 4K/60p 4:4:4
Video Signal Upscaling		up to 4K 60p 4:4:4

TERMINALS	Onkyo TX-SR373	Yamaha RX-S602
HDMI Inputs	4	4
HDMI Outputs	1	1
8K Inputs
USB Input	1 (Front)	USB memory, Portable Audio Player
USB DC Out Port
Optical Inputs	1	1
Optical Outputs
Coaxial Inputs	1	2
RCA Line Inputs	3	4 (1 front)
RCA Line Outputs
XLR Line Inputs
Phono Input
Multi-Channel Input
RCA Pre-Outs	0.1	0.1
XLR Pre-outs
Composite Video Inputs	2	3
Composite Video Outputs	1	1
S-Video Inputs
S-Video Outputs
Component Video Inputs
Component Video Outputs

GENERAL	Onkyo TX-SR373	Yamaha RX-S602
Brand	Onkyo	Yamaha
Series		Slimline
Model	TX-SR373	RX-S602
Type	A/V Receiver	A/V Receiver
Country	Europe	Asia
Release Year	2017	2018
Predecessor	Onkyo TX-SR353
Successor	Onkyo TX-SR383

AMPLIFIER	Onkyo TX-SR373	Yamaha RX-S602
Channels	5.1	5.1
Power Output	80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)	55 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
Front Wide Channel Support
Dynamic Audio Amplification
Non-Phase Shift Amplifier
VLSC (Vector Linear Shaping Circuitry)
Optimum Gain Volume Circuitry
THX™ Certification
Continuous 6 Ω Rated
Certified 4 Ω Performance
Discrete Output Stage Circuitry
Independent Block Construction (Amp/Preprocessor)
Bi-amp Capability
BTL (Bridged Transless or Bridging)

AUDIO FEATURES	Onkyo TX-SR373	Yamaha RX-S602
Surround:AI™
DAC		Burr-Brown DAC x 3
DAC Specs	192 kHz/24 Bit	384 kHz/32 Bit
Maximum Channel Processing	5.1	5.1
Air Studios Monitor Certification
Dolby Atmos
Dolby Atmos Height Virtualization
Dolby Atmos Music
Dolby TrueHD
Dolby Digital Plus
Dolby Surround Upmixer
Dolby Pro Logic	PLII	PLII
Dolby Digital EX
THX Listening Modes
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
IMAX Enhanced
Auro 3D with Auro-Matic Upmixer
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	WMA, MP3, AAC	MP3, WMA, AAC, Apple Lossless, WAV, FLAC, AIFF, DSD
High Resolution Music Playback via USB and/or Network		up to 192 kHz/32 Bit
High Resolution Audio Formats via USB		Apple Lossless, WAV, FLAC, AIFF, DSD
Gapless Playback
DSD via HDMI	2-ch	2-ch/Multi-ch Input
DSD via USB		2-ch Input
DSD to PCM Converter
USB DAC
Jitter Reduction
DTS Dialogue Control
Dialog Enhancement
Dialog Level Adjustment
Dialog normalization
Dialogue Lift
Tone Control	Front L/R Channels
Compressed Music Enhancer	Advanced Music Optimizer	including enhancer for Bluetooth®
High-resolution Music Enhancer
Adaptive DRC (Dynamic Range Control)
Initial Volume & Maximum Volume Setting
THX Processing Mode
Audyssey Dynamic EQ
Audyssey Dynamic Volume
Audyssey LFC
Audyssey Sub EQ HT
Audyssey DSX
Phase-Matching Bass Boost
Direct Mode
Pure Audio Mode
Pure Direct Analog Path Mode
Straight Decoding Mode
CINEMA DSP		3D
DSP Programs		17
SILENT CINEMA / Virtual CINEMA DSP		Virtual CINEMA FRONT
Virtual Speakers

CALIBRATION	Onkyo TX-SR373	Yamaha RX-S602
Auto Speaker Calibration System with Mic.	AccuEQ	YPAO sound optimization
YPAO Volume
PEQ for SUB		Down to 31 Hz

VIDEO FEATURES	Onkyo TX-SR373	Yamaha RX-S602
HDR10
HDR10+
Dynamic HDR
BT.2020 color space
Dolby Vision
HLG (Hybrid Log Gamma)
HDBaseT Compatible
Enhanced Audio Return Channel (eARC)		via future firmware update
HDCP Version	2.2	2.3
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 (4:4:4)	up to 4K/60p 4:4:4
Video Signal Upscaling		up to 4K 60p 4:4:4
Analog To HDMI Upconversion
Analog to Analog Video conversion
isf Certified Calibration Control

CONNECTIVITY	Onkyo TX-SR373	Yamaha RX-S602
Wi-Fi
Bluetooth	SBC, AAC	SBC, AAC (compatible with SCMS-T.)
Works with Amazon Alexa
Google Assistant
Chromecast Built-In
Works with SonoS
DTS Play-Fi
MHL Input
DLNA 1.5
MusicCast
AirPlay		AirPlay 2 via firmware update
Apple Product Connection		iPod, iPhone and iPad
Remote App		(iPhone® / iPad® / Android™ phone / tablet)
InstaPrevue Input Source Prevue

TERMINALS	Onkyo TX-SR373	Yamaha RX-S602
HDMI Inputs	4	4
HDMI Outputs	1	1
8K Inputs
USB Input	1 (Front)	USB memory, Portable Audio Player
USB DC Out Port
Optical Inputs	1	1
Optical Outputs
Coaxial Inputs	1	2
RCA Line Inputs	3	4 (1 front)
RCA Line Outputs
XLR Line Inputs
Phono Input
Multi-Channel Input
RCA Pre-Outs	0.1	0.1
XLR Pre-outs
Composite Video Inputs	2	3
Composite Video Outputs	1	1
S-Video Inputs
S-Video Outputs
Component Video Inputs
Component Video Outputs
Ethernet
Ethernet Switch
PC In
Front A/V Inputs	USB	USB, mini-jack Audio
Speaker A/B
Headphone Out	6.3 mm (1/4")	6.3 mm (1/4")
Detachable Power Cord
uport
dockport

ZONES	Onkyo TX-SR373	Yamaha RX-S602
Number of Zones	1	2
Powered Zones		Zone 2
Zone 2 Outs
Zone B Video Output		Party Mode
Whole House Mode
RS-232C Interface
+12V Trigger Output	0
Remote (IR) Input/Output	0 / 0	0 / 0
Party Mode

MISCELLANEOUS	Onkyo TX-SR373	Yamaha RX-S602
On-Screen Display	via HDMI	color OSD
SCENE		SCENE (4 sets)
Web Control
PreAmp Mode
ONKYO-RI System Control
RIHD (Remote Interactive Over HDMI)
Pre-Pro/Learning Remote	/
On Screen Remote Programming
Bi-directional Remote Setup via GUI

RADIO	Onkyo TX-SR373	Yamaha RX-S602
Analog Tuner	FM/AM with RDS	FM/AM
Presets	30	40
Digital Radio
Internet Radio
Pandora
Spotify
Tidal
Deezer
Napster
SiriusXM

CONSTRUCTION	Onkyo TX-SR373	Yamaha RX-S602
Solid Aluminum Front
A.R.T. Wedge
Speaker Terminals	5	5
Large Speaker Terminals	2	5
Color-Coded Speaker Terminals
Transparent High-Grade Speaker Terminals
Gold plated RCA terminals

POWER	Onkyo TX-SR373	Yamaha RX-S602
Power Supply	AC 220-240 V, 50/60 Hz	AC 220-240 V, 50/60 Hz
Independent Power Supply
H.C.P.S. (High Current Power Supply)
Toroidal Transformer
Power Consumption	220 W	190 W
Standby Power	0.3 W	0.1 W
ECO Mode / Hybrid Standby Function
Auto Power Standby

PHYSICAL	Onkyo TX-SR373	Yamaha RX-S602
Dimensions (W x H x D)	435 mm x 168 mm x 326.5 mm 17-1/8" x 6-5/8" x 12-13/16"	435 mm x 111 mm x 328 mm (with antenna: 435 mm x 186 mm x 328 mm) 17-1/8" x 4-3/8" x 12-7/8" (with antenna up: 17-1/8" x 7-4/8" x 12-7/8")
Dimensions of Package (W x H x D)		20" x 7" x 16"
Weight	8.0 kg (17 lb 10 oz)	7.8 kg (17.2 lbs)
Weight of Package		20.9 lbs

SPECIFICATIONS	Onkyo TX-SR373	Yamaha RX-S602
Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC)	100 W (0.09% THD)	55 W (Front, 0.09% THD)
Power Output (8 Ω, 1 kHz, 2 channel Driven, FTC)		65 W (0.9% THD)
Rated Power Output (8 Ω, 1 kHz, 1 channel Driven)		80 W (0.9% THD)
Maximum Effective Output Power (8 Ω, 1 kHz, 1 channel Driven, JEITA)		100 W (10% THD)
Power Output (6 Ω, 20 Hz - 20 kHz, 2 channel driven)		60 W (Front, 0.09% THD)
Power Output (6 Ω, 1 kHz, 2 channel driven, FTC)		80 W (0.9% THD)
Power Output (6 Ω, 1 kHz, 1 channel driven, FTC)		95 W (0.9% THD)
Maximum Effective Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA or IEC)		125 W (10% THD)
Rated Power Output (6 Ω, 1 kHz, 1 channel driven, IEC)	135 W (1% THD)
Dynamic Power per Channel (2 Ω, Front)		160 W
Dynamic Power per Channel (4 Ω, Front)		140 W
Dynamic Power per Channel (6 Ω, Front)		110 W
Dynamic Power per Channel (8 Ω, Front)		90 W
THD	0.06% (20 Hz - 20 kHz, 1 Channel Driven, 50 W)
Input Sensitivity and Impedance (Line)	200 mV/47 kΩ	200 mV/47 kΩ (1 kHz, 100 W/6 Ω)
Maximum Input Sensitivity (Line)		2.3 V (1 kHz, 0.5% THD)
Rated Preout Level and Impedance		1.0 V/1.2 kΩ (Subwoofer)
Rated Headphone Jack Output Level and Impedance		100 mV/470 Ω (1 kHz, 50 mV, 8 Ω)
S/N Ratio (Line, IHF-A)	106 dB	108 dB
Frequency Response (Analog In)	5 Hz - 100 kHz/0 dB, -3 dB (Direct)	+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)		70 dB/50 dB
DSD Sampling Rates via HDMI	2.8 MHz	2.8 MHz
DSD Sampling Rates via USB		11.2 MHz, 5.6 MHz, 2.8 MHz
Video Input Sensitivity/Output Level and Impedance	1 Vp-p/75 Ω (Composite)	1 Vp-p/75 Ω (Composite)
Video Maximum Input		1.5 Vp-p
Video S/N Ratio		50 dB
Ethernet Standard		10BASE-T/100BASE-TX
Wi-Fi Standard		IEEE 802.11 a/b/g/n/ac
Wi-Fi Terminal Frequency		2.4 GHz, 5 GHz
Bluetooth Version	3.0	4․2
Bluetooth Frequency	2.4 GHz	2.4 GHz
HDMI Terminal	Type A (19-pin)
HDMI Output Type	5 V, 55 mA
USB Terminal	5 V, 0.5 A	USB2.0 5 V, 1 A
FM Frequency	87.5 MHz - 108.0 MHz	87.5/87.50 MHz - 108.0/108.00 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	530 kHz - 1700 kHz	530/531 kHz - 1710/1611 kHz
Warranty	2 Years	2 Years

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