Denon AVR-X6400H vs Onkyo TX-RZ620

Here we are comparing Denon AVR-X6400H to Onkyo TX-RZ620 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 Denon AVR-X6400H has 11 channel and the Onkyo TX-RZ620 has 7 channel amplifiers with Denon AVR-X6400H's being more powerful.

Denon AVR-X6400H	Onkyo TX-RZ620
Denon AVR-X6400H was introduced in 2017. It is equipped with 11 channel amplifier with 140 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) power per channel and is capable of 11.2 maximum channel processing. It supports Dolby Atmos, DTS:X and Auro-3D, passes 4K/60Hz and upscales up to 4K 50/60Hz 4:4:4 video signal.	Onkyo TX-RZ620 was introduced in 2017. It is equipped with 7 channel amplifier with 100 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) power per channel and is capable of 7.1 maximum channel processing. It supports Dolby Atmos and DTS:X, passes 4K/60Hz video signal.

We evaluated Denon AVR-X6400H and Onkyo TX-RZ620 and gave them scores of 93 and 88 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 Denon AVR-X6400H over Onkyo TX-RZ620.

	Denon AVR-X6400H	vs	Onkyo TX-RZ620
More Channels	11.2	vs	7.2
Higher Power Output	140 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)	vs	100 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
Bi-amp capability	5-ch (assignable)	vs
More Channel Processing	11.2	vs	7.1
Dolby Digital EX		vs
DTS Virtual:X	via firmware update	vs
Auro 3D with Auro-Matic Upmixer	Built-In	vs
Dialog Enhancement		vs
Audyssey Dynamic EQ		vs
Audyssey Dynamic Volume		vs
Audyssey LFC		vs
Audyssey Sub EQ HT		vs
Enhanced Audio Return Channel (eARC)		vs
Auto Low Latency Mode Pass-through		vs
Video Signal Upscaling	up to 4K 50/60Hz 4:4:4	vs
Component Video Maximum Resolution	1080p	vs	480i/576i
isf Certified Calibration Control		vs
Works with Amazon Alexa		vs
AirPlay	AirPlay 2	vs	AirPlay
More HDMI Inputs	8 (1 front)	vs	7 (1 front)
More HDMI Outputs	3 (2 for MAIN, 1 for ZONE2)	vs	2 (simultaneous)
More Coaxial Inputs/Outputs	2	vs	1
More RCA Line Inputs	7 (1 front)	vs	6
More RCA Pre-Outs	11.2	vs	0.2
More Composite Video Inputs	5 (1 front)	vs	2
More Composite Video Outputs	1	vs
More Component Video Outputs	1	vs
Front A/V Inputs	HDMI, USB, Composite, L/R Audio	vs	HDMI, Mini-Jack
Speaker A/B	assignable	vs
More Zones	3	vs	2
More Powered Zones	2 and 3	vs	2
Zone 2 Outs	HDMI, Component, Composite, Pre Out	vs	RCA Pre/Line Out
+12V Trigger Output	2	vs	1 (MAIN, 100 mA)
Remote (IR) Input/Output	1 / 1	vs	1 / 0
Napster		vs
SiriusXM		vs
More Speaker Terminals	11	vs	9
More Large Speaker Terminals	11	vs	9
Color-Coded Speaker Terminals		vs
Transparent High-Grade Speaker Terminals		vs
Gold plated RCA terminals		vs
Bigger Power Supply	750 W	vs	580 W
Higher Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC)	140 W (0.05% THD)	vs	100 W (0.08% THD)
Higher Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA)	250 W (10% THD)	vs	215 W (10% THD)
Higher Dynamic Power per Channel, 4 Ω, Front)	250 W x 2-channel	vs	210 W
Higher Dynamic Power per Channel, 8 Ω, Front)	160 W x 2-channel	vs	120 W
Wider AM Frequency Range	520 kHz - 1710 kHz	vs	530 kHz - 1710 kHz

This section shows those features and specifications which are the reason to choose Onkyo TX-RZ620 over Denon AVR-X6400H.

	Denon AVR-X6400H	vs	Onkyo TX-RZ620
Network Audio Formats	MP3, WMA, MPEG-4 AAC, Apple Lossless, WAV, FLAC, DSD	vs	FLAC, WAV, Apple Lossless, WMA, MP3, DSD, AIFF, MPEG-4 AAC, LPCM
Music Playback via USB	MP3, WMA, AAC, Apple Lossless, WAV, FLAC, DSD	vs	FLAC, WAV, Apple Lossless, WMA, MP3, DSD, AIFF, AAC, Dolby TrueHD
High Resolution Audio Formats via USB	Apple Lossless, WAV, FLAC, DSD	vs	FLAC, WAV, Apple Lossless, DSD, AIFF, AAC, Dolby TrueHD
Chromecast Built-In		vs
DTS Play-Fi		vs
Higher S/N Ratio (Line, IHF-A)	102 dB	vs	106 dB
Higher S/N Ratio (Phono MM, IHF-A)	74 dB	vs	80 dB
Newer Bluetooth Version	3․0 + EDR	vs	4․1 + LE

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	Denon AVR-X6400H	Onkyo TX-RZ620
Dolby Atmos	up to 7.1.4
DTS:X	up to 7.1.4
DSD via HDMI	2-ch/Multi-ch Input	2-ch/Multi-ch Input
Auto Speaker Calibration System with Mic.	Audyssey MultEQ XT32	AccuEQ with AccuReflex™
HDR10
Dolby Vision
New HDCP Version	2.2	2.2
Analog To HDMI Upconversion	Component, Composite	Component**, Composite
Wi-Fi
Bluetooth	SBC	SBC, AAC
Many HDMI Inputs	8 (1 front)	7 (1 front)
USB Input	1 (Front) for iPod/iPhone and USB memory	1 (Rear)
Many RCA Line Inputs	7 (1 front)	6
Phono Input
Composite Video Inputs	5 (1 front)	2
Component Video Inputs	2	2
Ethernet
Analog Tuner	FM/AM	FM/AM
Pandora
Spotify
Tidal

WEAKNESSES	Denon AVR-X6400H	Onkyo TX-RZ620
No Front Wide Channel Support
No Dolby Atmos Height Virtualization
No IMAX Enhanced
No HDR10+
No 8K Passthrough	up to 4K 50/60Hz 4:4:4	up to 4K/60p (RGB/YCbCr4:4:4)
Few 8K Inputs
No Digital Radio

Denon AVR-X6400H	Onkyo TX-RZ620
11 channel Monolithic Amplifier: Denon AVR-X6400H features 11 channel power amplifier with Monolithic design. It is rated at 140 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) and is able to drive 4 ohm speakers.	7 channel Amplifier: Onkyo TX-RZ620 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.

• Dynamic Audio Amplification: Onkyo TX-RZ620 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.

AMPLIFIER	Denon AVR-X6400H	Onkyo TX-RZ620
Channels	11.2	7.2
Power Output	140 W (8 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	5-ch (assignable)

Denon AVR-X6400H's and Onkyo TX-RZ620's amplifiers can be assigned for different speaker configurations.

• Dolby Atmos Configurations: The following speaker configurations are supported for Dolby Atmos:
Denon AVR-X6400H: 5.2.2, 5.2.4, 7.2.2, 7.2.4 with internal amplifier.
Onkyo TX-RZ620: 5.2.2 with internal amplifier.
• DTS:X Configurations: The following speaker configurations are supported for DTS:X:
Denon AVR-X6400H: The speaker configurations for DTS:X are the same as for Dolby Atmos - 5.2.2, 5.2.4, 7.2.2, 7.2.4 with internal amplifier.
Onkyo TX-RZ620: The speaker configurations for DTS:X are the same as for Dolby Atmos - 5.2.2 with internal amplifier.
• Configurations without height channels: There are also other speaker configurations available which do not include height channels:
Denon AVR-X6400H: 5.2, 7.2 with internal amplifier.
Onkyo TX-RZ620: 5.2, 7.2 with internal amplifier.
• Bi-Amp: Denon AVR-X6400H is able to bi-amp up to 5 and Onkyo TX-RZ620 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

Denon AVR-X6400H and Onkyo TX-RZ620 support Dolby Atmos.

• Dolby Surround Upmixer: Both models support 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

Denon AVR-X6400H and Onkyo TX-RZ620 support DTS:X.

• DTS Neural:X: Both models feature 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 Virtual:X: Denon AVR-X6400H supports DTS Virtual:X which bridges the gap between DTS:X codec and the reality of so many consumers' homes, allowing you to enjoy multi-dimensional sound regardless of room size, layout, or speaker configuration. If you have a limited speaker setup you will miss a full immersive potential of your entertainment system. DTS Virtual:X adds height and surround audio effect to your system without adding height speakers. It works with multiple configurations and delivers immersive sound experience out of 5.1 or even 2.1 speaker layouts.
• DTS Dialog Control: Both models have 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.

Auro-3D

Denon AVR-X6400H supports Auro-3D.

• Auro-Matic upmixer: Auro-Matic upmixer takes non Auro-3D sound and upmixes to the current speaker configuration.

AUDIO DECODING	Denon AVR-X6400H	Onkyo TX-RZ620
Dolby Atmos	up to 7.1.4
Dolby Atmos Height Virtualization
Dolby Atmos Music
Dolby TrueHD
Dolby Digital Plus
Dolby Surround Upmixer
Dolby Pro Logic
Dolby Digital EX
DTS:X	up to 7.1.4
DTS Neural:X
DTS Virtual:X	via firmware update
DTS Neo
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	Built-In

Denon AVR-X6400H comes with 8 HDMI inputs. It has 3 outputs - 2 for MAIN and 1 for ZONE2.

Onkyo TX-RZ620 comes with 7 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 50/60Hz 4:4:4 video signal.
• 4K Upscaling on Denon AVR-X6400H: It can upscale up to 4K 50/60Hz 4:4:4 from HDMI and analog sources.
• Analog To HDMI Upconversion: Both receivers support 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 both models).
• 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, 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)

Denon AVR-X6400H 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.

Gaming Features

Denon AVR-X6400H supports Auto Low Latency Mode (ALLM) for lag-free and smooth gaming.

VIDEO FEATURES	Denon AVR-X6400H	Onkyo TX-RZ620
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 50/60Hz 4:4:4	up to 4K/60p (RGB/YCbCr4:4:4)
Video Signal Upscaling	up to 4K 50/60Hz 4:4:4

TERMINALS	Denon AVR-X6400H	Onkyo TX-RZ620
HDMI Inputs	8 (1 front)	7 (1 front)
HDMI Outputs	3 (2 for MAIN, 1 for ZONE2)	2 (simultaneous)
8K Inputs
USB Input	1 (Front) for iPod/iPhone and USB memory	1 (Rear)
USB DC Out Port
Optical Inputs	2	2
Optical Outputs
Coaxial Inputs	2	1
RCA Line Inputs	7 (1 front)	6
RCA Line Outputs
XLR Line Inputs
Phono Input
Multi-Channel Input
RCA Pre-Outs	11.2	0.2
XLR Pre-outs
Composite Video Inputs	5 (1 front)	2
Composite Video Outputs	1
S-Video Inputs
S-Video Outputs
Component Video Inputs	2	2
Component Video Outputs	1

GENERAL	Denon AVR-X6400H	Onkyo TX-RZ620
Brand	Denon	Onkyo
Model	AVR-X6400H	TX-RZ620
Type	A/V Receiver	A/V Receiver
Country	USA	North America
Release Year	2017	2017
Predecessor	Denon AVR-X6300H	Onkyo TX-RZ610
Successor	Denon AVR-X6500H	Onkyo TX-RZ630

AMPLIFIER	Denon AVR-X6400H	Onkyo TX-RZ620
Channels	11.2	7.2
Power Output	140 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)	100 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
Front Wide Channel Support
Amplifier Design	Monolithic
Discrete Amplification
Dynamic Audio Amplification
Non-Phase Shift Amplifier
VLSC (Vector Linear Shaping Circuitry)		Front L/R channels
Optimum Gain Volume Circuitry
THX™ Certification
Continuous 6 Ω Rated
Certified 4 Ω Performance
Discrete Output Stage Circuitry
Mono Block Power Amplifier Construction
Independent Block Construction (Amp/Preprocessor)
Bi-amp Capability	5-ch (assignable)
BTL (Bridged Transless or Bridging)

AUDIO FEATURES	Denon AVR-X6400H	Onkyo TX-RZ620
Digital Signal Processing (DSP) Engine	4 powerful high speed 4th generation SHARC DSP processors	32-bit Digital Signal Processing Engines
DAC	AKM AK4458VN	AKM AK4458
DAC Specs	384 kHz/32 Bit	384 kHz/32 Bit
Maximum Channel Processing	11.2	7.1
D.D.S.C. HD Digital	32-bit
Alpha Processing	AL32 Processing Plus
Air Studios Monitor Certification
Dolby Atmos	up to 7.1.4
Dolby Atmos Height Virtualization
Dolby Atmos Music
Dolby TrueHD
Dolby Digital Plus
Dolby Surround Upmixer
Dolby Pro Logic
Dolby Digital EX
THX Listening Modes
Surround EX
DTS:X	up to 7.1.4
DTS Neural:X
DTS Virtual:X	via firmware update
DTS Neo
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	Built-In
PCM	2-ch/Multi-ch Input	2-ch/Multi-ch Input
Network Audio Formats	MP3, WMA, MPEG-4 AAC, Apple Lossless, WAV, FLAC, DSD	FLAC, WAV, Apple Lossless, WMA, MP3, DSD, AIFF, MPEG-4 AAC, LPCM
Music Playback via USB	MP3, WMA, AAC, Apple Lossless, WAV, FLAC, DSD	FLAC, WAV, Apple Lossless, WMA, MP3, DSD, AIFF, AAC, Dolby TrueHD
High Resolution Music Playback via USB and/or Network	up to 192 kHz	up to 192 kHz
High Resolution Audio Formats via USB	Apple Lossless, WAV, FLAC, DSD	FLAC, WAV, Apple Lossless, DSD, AIFF, AAC, Dolby TrueHD
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		Front L/R Channels
Compressed Music Enhancer		Advanced Music Optimizer (bluetooth included)
High-resolution Music Enhancer
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
Pure Direct Mode
Virtual Speakers		T-D (Theater-Dimensional)
Independent Subwoofer Outputs

CALIBRATION	Denon AVR-X6400H	Onkyo TX-RZ620
Auto Speaker Calibration System with Mic.	Audyssey MultEQ XT32	AccuEQ with AccuReflex™
Audyssey App Support
Optimized Bass Redirection
Bass Sync

VIDEO FEATURES	Denon AVR-X6400H	Onkyo TX-RZ620
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 50/60Hz 4:4:4	up to 4K/60p (RGB/YCbCr4:4:4)
Video Signal Upscaling	up to 4K 50/60Hz 4:4:4
Analog To HDMI Upconversion	Component, Composite	Component**, Composite
Component Video Upscaling
Analog to Analog Video conversion
Component Video Maximum Resolution	1080p	480i/576i
isf Certified Calibration Control

CONNECTIVITY	Denon AVR-X6400H	Onkyo TX-RZ620
Wi-Fi
Bluetooth	SBC	SBC, AAC
Bluetooth Headphone Transmission
Works with Amazon Alexa
Chromecast Built-In
Works with SonoS
HEOS
DTS Play-Fi
MHL Input
DLNA 1.5
AirPlay	AirPlay 2	AirPlay
Apple Product Connection	iPod, iPhone and iPad	iPod, iPhone and iPad
Remote App	Denon 2016 AVR Remote App for iOS and Android devices and Kindle Fire	Onkyo Remote App for iPod touch/iPhone and Android-Powered Devices
InstaPrevue Input Source Prevue

TERMINALS	Denon AVR-X6400H	Onkyo TX-RZ620
HDMI Inputs	8 (1 front)	7 (1 front)
HDMI Outputs	3 (2 for MAIN, 1 for ZONE2)	2 (simultaneous)
8K Inputs
USB Input	1 (Front) for iPod/iPhone and USB memory	1 (Rear)
USB DC Out Port
Optical Inputs	2	2
Optical Outputs
Coaxial Inputs	2	1
RCA Line Inputs	7 (1 front)	6
RCA Line Outputs
XLR Line Inputs
Phono Input
Multi-Channel Input
RCA Pre-Outs	11.2	0.2
XLR Pre-outs
Composite Video Inputs	5 (1 front)	2
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, Composite, L/R Audio	HDMI, Mini-Jack
Speaker A/B	assignable
Headphone Out	6.3 mm (1/4")	6.3 mm (1/4")
Detachable Power Cord
uport

ZONES	Denon AVR-X6400H	Onkyo TX-RZ620
Number of Zones	3	2
Powered Zones	2 and 3	2
Zone 2 Outs	HDMI, Component, Composite, Pre Out	RCA Pre/Line Out
Zone 3 Outs	Pre Out
Whole House Mode
RS-232C Interface
+12V Trigger Output	2	1 (MAIN, 100 mA)
Remote (IR) Input/Output	1 / 1	1 / 0

MISCELLANEOUS	Denon AVR-X6400H	Onkyo TX-RZ620
On-Screen Display	Advanced Graphic User Interface	Graphical User Interface with Overlaid On-Screen Display (OSD) via HDMI
GUI Languages	3
Control4 SDDP
Display	2 lines
Remote Controller	RC-1219
Pre-programmed / Learnable / LCD Display	/ /
ONKYO-RI System Control
RIHD (Remote Interactive Over HDMI)
Pre-Pro/Learning Remote		/
Smart Grid-Ready
Denon Link HD
Setup Assistant
Quick Select plus / Quick Select	/

RADIO	Denon AVR-X6400H	Onkyo TX-RZ620
Analog Tuner	FM/AM	FM/AM
Presets		40
Digital Radio
Internet Radio	TuneIn	TuneIn
Pandora
Spotify
Tidal
Deezer
Napster
SiriusXM

CONSTRUCTION	Denon AVR-X6400H	Onkyo TX-RZ620
Front Panel	Metal
Solid Aluminum Front
Speaker Terminals	11	9
Large Speaker Terminals	11	9
Color-Coded Speaker Terminals
Transparent High-Grade Speaker Terminals
High Grade Audio Components
Gold plated RCA terminals

POWER	Denon AVR-X6400H	Onkyo TX-RZ620
Power Supply	AC 120 V, 60 Hz	AC 120 V, 60 Hz
H.C.P.S. (High Current Power Supply)		EI Transformer
Toroidal Transformer
Power Consumption	750 W	580 W
No Sound Power	ECO On/Off: 65 W/110 W	60 W
Standby Power	0.1 W	0.15 W
Capacitor Bank		10,000 µF
ECO Mode / Hybrid Standby Function
Auto Power off

PHYSICAL	Denon AVR-X6400H	Onkyo TX-RZ620
Dimensions (W x H x D)	434 mm x 167 mm x 393 mm (with antenna: 434 mm x 235 mm x 393 mm) 17 1/8" x 6 5/8" x 15 1/2" (with antenna: 17 1/8" x 9 3/8" x 15 1/2")	435 mm x 177 mm x 378 mm 17-1/8" x 6-15/16" x 14-7/8"
Weight	14.5 kg (31 lbs 15 oz)	10.0 kg (22.0 lbs)

SPECIFICATIONS	Denon AVR-X6400H	Onkyo TX-RZ620
Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC)	140 W (0.05% THD)	100 W (0.08% THD)
Power Output (6 Ω, 1 kHz, 2 channel driven, FTC)	175 W (0.7% THD)
Power Output (6 Ω, 1 kHz, 1 channel driven, FTC)		170 W (0.9% THD)
Maximum Effective Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA or IEC)	250 W (10% THD)	215 W (10% THD)
Rated Power Output (6 Ω, 1 kHz, 1 channel driven, IEC)	205 W (1% THD)
Dynamic Power per Channel (3 Ω, Front)		240 W
Dynamic Power per Channel (4 Ω, Front)	250 W x 2-channel	210 W
Dynamic Power per Channel (8 Ω, Front)	160 W x 2-channel	120 W
THD		0.08% (20 Hz - 20 kHz, Half power)
THD (Digital)	0.008% (1 kHz, at 0 dB)
Analog Distortion	0.005% (20 Hz-20 kHz, Direct mode)
Phono Distortion	0.03% (1 kHz, 3 V)
Input Sensitivity and Impedance (Line)	200 mV/47 kΩ	200 mV/47 kΩ (1 kHz, 100 W/8 Ω)
Input Sensitivity and Impedance (Phono MM)	2.5 mV	3.5 mV/47 kΩ
Rated Lineout Level and Impedance	1.2 V
Rated Output digital	2 V (at 0 dB playback)
Rated Headphone Jack Output Level and Impedance		330 Ω
Rated Headphone Power Output		80 mW (32 Ω, 1 kHz, 10% THD)
Phono Overload		70 mV (MM, 1 kHz 0.5%)
S/N Ratio (Line, IHF-A)	102 dB	106 dB
S/N Ratio (Phono MM, IHF-A)	74 dB	80 dB
S/N Ratio (digital)	102 dB
Dynamic Range (digital)	100 dB
Phono RIAA Deviation	±1 dB (20 Hz to 20 kHz)
Frequency Response (Analog In)	+1/-3 dB (10 Hz to 100 kHz, Direct mode)	5 Hz - 100 kHz/+1 dB, -3 dB (Direct)
DSD Sampling Rates via HDMI	2.8 MHz	2.8 MHz
DSD Sampling Rates via USB	5.6 MHz, 2.8 MHz	2.8 MHz, 5.6 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 Frequency Response	5 Hz to 60 MHz, 0 dB/-3 dB (Component)
Ethernet Standard	100BASE-TX	10BASE-T/100BASE-TX
Wi-Fi Standard	IEEE 802.11 a/b/g/n	IEEE 802.11 a/b/g/n
Wi-Fi Terminal Frequency	5 GHz, 2.4 GHz	5 GHz, 2.4 GHz
Bluetooth Version	3․0 + EDR	4․1 + LE
Bluetooth Frequency	2.4 GHz	2.4 GHz
USB Terminal	USB2.0 5V, 1 A	Ver. 2.0, 5 V, 1 A
FM Frequency	87.5 MHz - 107.9 MHz	87.5 MHz - 107.9 MHz
FM 50 dB Quiet Sensitivity (IHF, 1 kHz, 100% MOD.)	Mono: 2.8 µV (20.2 dBf)
FM Effective Sensitivity	1.2 µV (12.8 dBf)
FM S/N Ratio	Mono/Stereo: 70 dB/67 dB
FM Harmonic Distortion (IHF, 1 kHz)	Mono/Stereo: 0.7%/1.0%
AM Frequency	520 kHz - 1710 kHz	530 kHz - 1710 kHz
AM Effective Sensitivity	18 µV
Warranty	3 Years	3 Years

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