Onkyo TX-RZ920 vs Yamaha RX-A550

Here we are comparing Onkyo TX-RZ920 to Yamaha RX-A550 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. The Onkyo TX-RZ920 has 9 channel and the Yamaha RX-A550 has 5 channel amplifiers with Onkyo TX-RZ920's being more powerful.

Onkyo TX-RZ920	Yamaha RX-A550
Onkyo TX-RZ920 was introduced in 2017. It is equipped with 9 channel amplifier with 135 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) power per channel and is capable of 11.1 maximum channel processing. It supports Dolby Atmos and DTS:X, passes 4K/60Hz and upscales 1080p to 4K video signal.	Yamaha RX-A550 was introduced in 2015. 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 and upscales up to 1080p video signal.

We evaluated Onkyo TX-RZ920 and Yamaha RX-A550 and gave them scores of 92 and 72 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-RZ920 over Yamaha RX-A550.

	Onkyo TX-RZ920	vs	Yamaha RX-A550
More Channels	9.2	vs	5.1
Higher Power Output	135 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)	vs	80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
THX™ Certification	Select™ (previously known as Select2)	vs
Certified 4 Ω Performance		vs
Bi-amp capability		vs
Higher DAC Specs	384 kHz/32 Bit for Front L/R 768 kHz/32 Bit for Other Channels 192kHz/24 Bit for Zone 2 and Zone 3	vs	192 kHz/24 Bit
More Channel Processing	11.1	vs	5.1
Dolby Atmos		vs
Dolby Surround Upmixer		vs
DTS:X		vs
DTS Neural:X		vs
Network Audio Formats	FLAC, WAV, Apple Lossless, WMA, MP3, DSD, AIFF, MPEG-4 AAC, LPCM	vs	MP3, WMA, MPEG-4 AAC, Apple Lossless, WAV, FLAC, AIFF, DSD
Music Playback via USB	FLAC, WAV, Apple Lossless, WMA, MP3, DSD, AIFF, AAC, Dolby TrueHD	vs	MP3, WMA, AAC, Apple Lossless, WAV, FLAC, AIFF, DSD
High Resolution Audio Formats via USB	FLAC, WAV, Apple Lossless, DSD, AIFF, AAC, Dolby TrueHD	vs	Apple Lossless, WAV, FLAC, AIFF, DSD
DTS Dialog Control		vs
Dialog Normalization		vs
HDR10		vs
BT.2020 color space		vs
Dolby Vision		vs
HLG		vs
Enhanced Audio Return Channel (eARC)	via future firmware update	vs
Video Signal Upscaling	1080p to 4K	vs	up to 1080p
Analog To HDMI Upconversion	Component**, Composite	vs
Chromecast Built-In		vs
Works with SONOS	requires firmware update & Sonos Connect	vs
DTS Play-Fi		vs
AirPlay	AirPlay 2 after firmware update	vs	AirPlay
More HDMI Inputs	8 (1 front)	vs	6
More HDMI Outputs	2 (1 Main, 1 Sub/Zone2)	vs	1
More Optical Inputs	2	vs	1
More RCA Line Inputs	6	vs	4 (1 AUX Jack in the front)
Phono Input		vs
More RCA Pre-Outs	11.2	vs	0.1
Front A/V Inputs	HDMI	vs	USB, mini-jack
Detachable Power Cord		vs
More Zones	3	vs	1
RS-232C Interface		vs
+12V Trigger Output	2 (A: 100 mA, B:25 mA)	vs
Remote (IR) Input/Output	1 / 0	vs	0 / 0
Pandora		vs
Tidal		vs
Deezer		vs
More Speaker Terminals	11	vs	5
More Large Speaker Terminals	11	vs	5
Bigger Power Supply	310 W	vs	260 W
Higher Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC)	135 W (0.08% THD)	vs	80 W (0.09% THD)
Higher Power Output (6 Ω, 1 kHz, 1 channel driven, FTC)	175 W (0.9% THD)	vs	115 W (0.9% THD)
Higher Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA)	250 W (10% THD)	vs	135 W (10% THD)
Higher Dynamic Power per Channel, 4 Ω, Front)	270 W	vs	130 W
Higher Dynamic Power per Channel, 8 Ω, Front)	160 W	vs	[]
Higher DSD Sampling Rate via USB	2.8 MHz, 5.6 MHz, 11.2 MHz	vs	5.6 MHz, 2.8 MHz
Wi-Fi Standard	IEEE 802.11 a/b/g/n	vs	IEEE 802.11 b/g/n
Wi-Fi Terminal Frequency	5 GHz, 2.4 GHz	vs	2.4 GHz
Newer Bluetooth Version	4․1 + LE	vs	2․1 + EDR
Wider AM Frequency Range	530 kHz - 1710 kHz	vs	531 MHz - 1611 MHz

This section shows those features and specifications which are the reason to choose Yamaha RX-A550 over Onkyo TX-RZ920.

	Onkyo TX-RZ920	vs	Yamaha RX-A550
Dolby Pro Logic		vs	PLII
DTS Neo		vs	Neo:6
Component Video Maximum Resolution	480i/576i	vs	1080i
Works with Amazon Alexa		vs	on MusicCast (Voice control using your Alexa device like Echo, Dot, Tap and Show)
More Composite Video Inputs	2	vs	4
More Composite Video Outputs		vs	1
More Component Video Outputs		vs	1
Higher S/N Ratio (Line, IHF-A)	107 dB	vs	110 dB

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-RZ920	Yamaha RX-A550
DSD via HDMI	2-ch/Multi-ch Input	2-ch/Multi-ch Input
Auto Speaker Calibration System with Mic.	AccuEQ with AccuReflex™	YPAO sound optimization
New HDCP Version	2.2	2.2
Wi-Fi		with Wireless Direct
Bluetooth	SBC, AAC
USB Input	1 (Rear)	iPod® / iPhone®, USB memory, portable audio player
Composite Video Inputs	2	4
Component Video Inputs	2	2
Ethernet
Analog Tuner	FM/AM	FM/AM
Spotify

WEAKNESSES	Onkyo TX-RZ920	Yamaha RX-A550
No Dolby Atmos Height Virtualization
No IMAX Enhanced
No Auro 3D with Auro-Matic Upmixer
No HDR10+
No 8K Passthrough	up to 4K/60p (RGB/YCbCr4:4:4)	up to 4K/60p 4:2:0
Few 8K Inputs
No Digital Radio

Onkyo TX-RZ920	Yamaha RX-A550
9 channel Amplifier: Onkyo TX-RZ920 features 9 channel power amplifier. It is rated at 135 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) and is able to drive 4 ohm speakers.	5 channel Amplifier: Yamaha RX-A550 features 5 channel power amplifier. It is rated at 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven).

• Dynamic Audio Amplification: Onkyo TX-RZ920 features Dynamic Audio Amplification which is Onkyo’s amplification philosophy that focuses on capturing the energy and dynamism contained in the audio signal and reproducing it without loss. Audio signals are not static like a test tone, but rather a countless collection of constantly moving waves. While static measurements such as S/N ratio and Total Harmonic Distortion are important, Onkyo believes that excellent dynamic and transient response is the key to emotionally involving sound. Dynamism - the “life” in music - is achieved when the amp can respond to changes in the signal instantaneously, so notes start and stop naturally and the nuances in attack, decay, sustain, and release are voiced with conviction. Onkyo home theater receivers represent the culmination of almost 70 years’ experience in amplifier design. The unique elements of their amplification system comprise high-current, low-impedance architecture to accurately control large speaker cones while enabling instantaneous response to dynamic changes, and discrete wide-range amplifier circuit topology to eliminate phase shift for clear and accurate audio imaging.

THX™ Select™ (previously known as Select2) certification

Onkyo TX-RZ920 is THX™ Select™ (previously known as Select2) certified. This means that it is for medium sized rooms, up to 2,000 cubic feet in size, with a 10-12 foot viewing distance from the screen.

AMPLIFIER	Onkyo TX-RZ920	Yamaha RX-A550
Channels	9.2	5.1
Power Output	135 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)	80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
THX™ Certification	Select™ (previously known as Select2)
Continuous 6 Ω Rated
Certified 4 Ω Performance
Bi-amp Capability

Onkyo TX-RZ920's and Yamaha RX-A550's amplifiers can be assigned for different speaker configurations.

• Dolby Atmos Configurations: The following speaker configurations are supported for Dolby Atmos:
Onkyo TX-RZ920: 5.2.2, 5.2.4, 7.2.2 with internal amplifier and 7.2.4 with addition of external 2 channel amplifier.
Yamaha RX-A550: Not supported.
• DTS:X Configurations: The following speaker configurations are supported for DTS:X:
Onkyo TX-RZ920: The speaker configurations for DTS:X are the same as for Dolby Atmos - 5.2.2, 5.2.4, 7.2.2 with internal amplifier and 7.2.4 with addition of external 2 channel amplifier.
Yamaha RX-A550: Not supported.
• Configurations without height channels: There are also other speaker configurations available which do not include height channels:
Onkyo TX-RZ920: 5.2, 7.2 with internal amplifier.
Yamaha RX-A550: 5.1 with internal amplifier.
• Bi-Amp: Onkyo TX-RZ920 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.

Dolby Atmos

Onkyo TX-RZ920 supports Dolby Atmos.

• Dolby Surround Upmixer: Onkyo TX-RZ920 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.

DTS:X

Onkyo TX-RZ920 supports DTS:X.

• DTS Neural:X: Onkyo TX-RZ920 supports DTS Neural:X which is an advanced upmixer that can take non DTS:X content and upmix it to the DTS:X speaker layout. It has replaced the DTS Neo family with improved flexibility.
• DTS Dialog Control: Onkyo TX-RZ920 supports DTS Dialog Control. This function adjusts the dialog levels during playback of the DTS:X stream. It allows you to separately increase the dialog levels in contrast with the background sound and hear dialog easily even under noisy circumstances.

AUDIO DECODING	Onkyo TX-RZ920	Yamaha RX-A550
Dolby Atmos
Dolby Atmos Height Virtualization
Dolby Atmos Music
Dolby TrueHD
Dolby Digital Plus
Dolby Surround Upmixer
Dolby Pro Logic		PLII
Dolby Digital EX
DTS:X
DTS Neural:X
DTS Virtual:X
DTS Neo		Neo:6
DTS-HD Master Audio
DTS-HD High Resolution Audio
DTS 96/24
DTS Express
DTS-ES		Discrete 6.1, Matrix 6.1
IMAX Enhanced
Auro 3D with Auro-Matic Upmixer

Onkyo TX-RZ920 comes with 8 HDMI inputs. It has 2 outputs - 1 Main and 1 Sub/Zone2.

Yamaha RX-A550 comes with 6 HDMI inputs. It has 1 output.

• 4K/60Hz Passthrough: On both receivers all inputs pass up to 4K/60p (RGB/YCbCr4:4:4) video signal.
• 4K Upscaling on Onkyo TX-RZ920: It can upscale 1080p to 4K from HDMI and analog sources.
  1080p Upscaling on Yamaha RX-A550: It can upscale up to 1080p from HDMI sources.
• Analog To HDMI Upconversion: Onkyo TX-RZ920 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 Onkyo TX-RZ920 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)

Onkyo TX-RZ920 supports HDR10, Dolby Vision and Hybrid Log-Gamma.

Yamaha RX-A550 does not support HDR. 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)

Onkyo TX-RZ920 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-RZ920	Yamaha RX-A550
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	2.2
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 (RGB/YCbCr4:4:4)	up to 4K/60p 4:2:0
Video Signal Upscaling	1080p to 4K	up to 1080p

TERMINALS	Onkyo TX-RZ920	Yamaha RX-A550
HDMI Inputs	8 (1 front)	6
HDMI Outputs	2 (1 Main, 1 Sub/Zone2)	1
8K Inputs
USB Input	1 (Rear)	iPod® / iPhone®, USB memory, portable audio player
USB DC Out Port
Optical Inputs	2	1
Optical Outputs
Coaxial Inputs	2	2
RCA Line Inputs	6	4 (1 AUX Jack in the front)
RCA Line Outputs
XLR Line Inputs
Phono Input
Multi-Channel Input
RCA Pre-Outs	11.2	0.1
XLR Pre-outs
Composite Video Inputs	2	4
Composite Video Outputs		1
S-Video Inputs
S-Video Outputs
Component Video Inputs	2	2
Component Video Outputs		1

GENERAL	Onkyo TX-RZ920	Yamaha RX-A550
Brand	Onkyo	Yamaha
Series		Aventage
Model	TX-RZ920	RX-A550
Type	A/V Receiver	A/V Receiver
Country	North America	Korea
Release Year	2017	2015
Predecessor	Onkyo TX-RZ900
Successor		Yamaha RX-A660

AMPLIFIER	Onkyo TX-RZ920	Yamaha RX-A550
Channels	9.2	5.1
Power Output	135 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)	80 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)	All Channels
Optimum Gain Volume Circuitry
THX™ Certification	Select™ (previously known as Select2)
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-RZ920	Yamaha RX-A550
Digital Signal Processing (DSP) Engine	32-bit Digital Signal Processing Engines
Surround:AI™
DAC	AKM AK4490 for Front L/R AKM AK4458 for Other Channels AKM AK4388 (x2) for Zone 2 and Zone 3	Burr-Brown
DAC Specs	384 kHz/32 Bit for Front L/R 768 kHz/32 Bit for Other Channels 192kHz/24 Bit for Zone 2 and Zone 3	192 kHz/24 Bit
Maximum Channel Processing	11.1	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
Dolby Digital EX
THX Listening Modes
Surround EX
DTS:X
DTS Neural:X
DTS Virtual:X
DTS Neo		Neo:6
DTS-HD Master Audio
DTS-HD High Resolution Audio
DTS 96/24
DTS Express
DTS-ES		Discrete 6.1, Matrix 6.1
IMAX Enhanced
Auro 3D with Auro-Matic Upmixer
PCM	2-ch/Multi-ch Input	2-ch/Multi-ch Input
Network Audio Formats	FLAC, WAV, Apple Lossless, WMA, MP3, DSD, AIFF, MPEG-4 AAC, LPCM	MP3, WMA, MPEG-4 AAC, Apple Lossless, WAV, FLAC, AIFF, DSD
Music Playback via USB	FLAC, WAV, Apple Lossless, WMA, MP3, DSD, AIFF, AAC, Dolby TrueHD	MP3, WMA, AAC, Apple Lossless, WAV, FLAC, AIFF, DSD
High Resolution Music Playback via USB and/or Network	up to 192 kHz	up to 192 kHz
High Resolution Audio Formats via USB	FLAC, WAV, Apple Lossless, DSD, AIFF, AAC, Dolby TrueHD	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	2-ch Input
DSD to PCM Converter
USB DAC
Jitter Reduction	PLL (Phase Locked Loop) Jitter-Cleaning Circuit Technology for S/PDIF Audio
DTS Dialogue Control
Dialog Enhancement
Dialog Level Adjustment
Dialog normalization
Dialogue Lift
Tone Control	All Channels
Compressed Music Enhancer	Advanced Music Optimizer (bluetooth included)	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
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	T-D (Theater-Dimensional)

CALIBRATION	Onkyo TX-RZ920	Yamaha RX-A550
Auto Speaker Calibration System with Mic.	AccuEQ with AccuReflex™	YPAO sound optimization
YPAO Volume
PEQ for SUB		Down to 31 Hz

VIDEO FEATURES	Onkyo TX-RZ920	Yamaha RX-A550
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	2.2
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 (RGB/YCbCr4:4:4)	up to 4K/60p 4:2:0
Video Signal Upscaling	1080p to 4K	up to 1080p
Analog To HDMI Upconversion	Component**, Composite
Component Video Upscaling
Analog to Analog Video conversion
Component Video Maximum Resolution	480i/576i	1080i
Video Parameter Adjustments
isf Certified Calibration Control

CONNECTIVITY	Onkyo TX-RZ920	Yamaha RX-A550
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	requires firmware update & Sonos Connect
DTS Play-Fi
MHL Input
DLNA 1.5
MusicCast
AirPlay	AirPlay 2 after firmware update	AirPlay
Apple Product Connection	iPod, iPhone and iPad	iPod, iPhone and iPad
Remote App	Onkyo Remote App for iPod touch/iPhone and Android-Powered Devices	(iPhone® / iPad® / Android™ phone / tablet)
InstaPrevue Input Source Prevue

TERMINALS	Onkyo TX-RZ920	Yamaha RX-A550
HDMI Inputs	8 (1 front)	6
HDMI Outputs	2 (1 Main, 1 Sub/Zone2)	1
8K Inputs
USB Input	1 (Rear)	iPod® / iPhone®, USB memory, portable audio player
USB DC Out Port
Optical Inputs	2	1
Optical Outputs
Coaxial Inputs	2	2
RCA Line Inputs	6	4 (1 AUX Jack in the front)
RCA Line Outputs
XLR Line Inputs
Phono Input
Multi-Channel Input
RCA Pre-Outs	11.2	0.1
XLR Pre-outs
Composite Video Inputs	2	4
Composite Video Outputs		1
S-Video Inputs
S-Video Outputs
Component Video Inputs	2	2
Component Video Outputs		1
Ethernet
Ethernet Switch
PC In
Front A/V Inputs	HDMI	USB, mini-jack
Speaker A/B
Headphone Out	6.3 mm (1/4")	6.3 mm (1/4")
Detachable Power Cord
uport
dockport

ZONES	Onkyo TX-RZ920	Yamaha RX-A550
Number of Zones	3	1
Powered Zones	2 and 3
Zone 2 Outs	HDMI, RCA Pre/Line Out
Zone 3 Outs	RCA Pre/Line Out
Zone B Video Output
Zone GUI
Whole House Mode
RS-232C Interface
+12V Trigger Output	2 (A: 100 mA, B:25 mA)
Remote (IR) Input/Output	1 / 0	0 / 0
Party Mode

MISCELLANEOUS	Onkyo TX-RZ920	Yamaha RX-A550
On-Screen Display	Graphical User Interface with Overlaid On-Screen Display (OSD) via HDMI with Quick Setup Function	color OSD
SCENE		SCENE (4 sets)
Web Control
PreAmp Mode
ONKYO-RI System Control
RIHD (Remote Interactive Over HDMI)
Pre-Pro/Learning Remote	/
Smart Grid-Ready

RADIO	Onkyo TX-RZ920	Yamaha RX-A550
Analog Tuner	FM/AM	FM/AM
Presets	40	40
Digital Radio
Internet Radio	TuneIn	vTuner
Pandora
Spotify
Tidal
Deezer
Napster
SiriusXM

CONSTRUCTION	Onkyo TX-RZ920	Yamaha RX-A550
Solid Aluminum Front
A.R.T. Wedge
Speaker Terminals	11	5
Large Speaker Terminals	11	5
Color-Coded Speaker Terminals
Transparent High-Grade Speaker Terminals
Gold plated RCA terminals

POWER	Onkyo TX-RZ920	Yamaha RX-A550
Power Supply	AC 120 V, 60 Hz	AC 220 V, 60 Hz
H.C.P.S. (High Current Power Supply)	Customized High-Output Transformer
Toroidal Transformer
Power Consumption	310 W	260 W
Standby Power	0.1 W	0.1 W
Capacitor Bank	15,000 µF
ECO Mode / Hybrid Standby Function
Auto Power Standby

PHYSICAL	Onkyo TX-RZ920	Yamaha RX-A550
Dimensions (W x H x D)	435 mm x 201 mm x 453 mm 17-1/8" x 7-15/16" x 17-13/16"	435 mm x 161 mm x 327 mm (with antenna: 435 mm x 221 mm x 327 mm) 17-1/8" x 6-3/8" x 12-7/8" (with antenna up: 17-1/8" x 8-3/4" x 12-7/8")
Weight	16.3 kg (35.9 lbs)	8.1 kg (17.9 lbs)

SPECIFICATIONS	Onkyo TX-RZ920	Yamaha RX-A550
Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC)	135 W (0.08% THD)	80 W (0.09% THD)
Power Output (8 Ω, 1 kHz, 2 channel Driven, FTC)		95 W (0.9% THD)
Power Output (6 Ω, 1 kHz, 1 channel driven, FTC)	175 W (0.9% THD)	115 W (0.9% THD)
Maximum Effective Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA or IEC)	250 W (10% THD)	135 W (10% THD)
Dynamic Power per Channel (2 Ω, Front)		160 W
Dynamic Power per Channel (3 Ω, Front)	320 W
Dynamic Power per Channel (4 Ω, Front)	270 W	130 W
Dynamic Power per Channel (6 Ω, Front)		110 W
Dynamic Power per Channel (8 Ω, Front)	160 W
THD	0.04% (1 kHz, 100 W, 8 Ω)
Damping Factor		100 (Front, 20 Hz - 20 kHz, 8 Ω)
Input Sensitivity and Impedance (Line)	200 mV/82 kΩ	200 mV/47 kΩ (1 kHz, 100 W/6 Ω)
Input Sensitivity and Impedance (Phono MM)	3.5 mV/47 kΩ
Maximum Input Sensitivity (Line)		2.3 V
Rated Preout Level and Impedance	1 V/330 Ω
Rated Headphone Jack Output Level and Impedance	43 Ω	100 mV/560 Ω (AV 4 etc., 1 kHz, 50 mV, 8 Ω)
Rated Headphone Power Output	55 mW (32 Ω, 1 kHz, 10% THD)
Phono Overload	70 mV (MM, 1 kHz 0.5%)
S/N Ratio (Line, IHF-A)	107 dB	110 dB
S/N Ratio (Phono MM, IHF-A)	90 dB
Frequency Response (Analog In)		+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
DSD Sampling Rates via HDMI	2.8 MHz	2.8 MHz
DSD Sampling Rates via USB	2.8 MHz, 5.6 MHz, 11.2 MHz	5.6 MHz, 2.8 MHz
Video Input Sensitivity/Output Level and Impedance	1 Vp-p/75 Ω (Component Y) 0.7 Vp-p/75 Ω (Component PB/CB, PR/CR) 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	10BASE-T/100BASE-TX
Wi-Fi Standard	IEEE 802.11 a/b/g/n	IEEE 802.11 b/g/n
Wi-Fi Terminal Frequency	5 GHz, 2.4 GHz	2.4 GHz
Bluetooth Version	4․1 + LE	2․1 + EDR
Bluetooth Frequency	2.4 GHz
USB Terminal	Ver. 2.0, 5 V, 1 A	USB2.0 5 V, 1 A
FM Frequency	87.5 MHz - 107.9 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	530 kHz - 1710 kHz	531 MHz - 1611 MHz
Warranty	3 Years	3 Years

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