Yamaha Aventage RX-A840 Review and Specs

Yamaha Aventage RX-A840 (Asian version)

SCORE:
47

Highlights

  • 100 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
  • 4K Upscaling, 4K Passthrough
  • MHL, AirPlay, DLNA
  • Ethernet, Wi-Fi, Bluetooth
  • USB and Phono inputs

Disclosure: We earn money from the affiliate links to products associated with content in this article.

Yamaha Aventage RX-A840 Overview

Yamaha Aventage RX-A840 was introduced in 2014. It is equipped with 7 channel amplifier and is capable of 7.1 maximum channel processing.

We evaluated the Receiver and gave 47 overall score out of 100. Our ranking system is based on the amplifier specifications, audio and video features, connectivity, multizone capabilities, radio and many other details.

AMPLIFIER
68
VIDEO FEATURES
32
AUDIO FEATURES
24
CONNECTIVITY
56
MULTIZONE
48
MISCELLANEOUS
38
RADIO
65
OVERALL
47

Amplifier score is based on power ratings, minimum impedance load, power supply, transformer type, total harmonic distortion, damping factor, signal to noise ratio and other small details. Audio score depends on the number of channels, front wide channel support, maximum channel processing, support of audio formats, DAC specifications, room calibration algorithm... Video score is based on HDR, Dolby Vision and video signal passthrough and upscaling, analog to HDMI upconversion. Connectivity score is defined from all wired and wireless inputs and outputs, internet and bluetooth connections, HEOS, SONOS and others. Multizone score depends on the number of zones with their outputs. Radio score is evaluated form digital radio support and analog tuner with its frequency range, signal to noise ratio, harmonic distortion...

Pros and Cons

In this section we present pros and cons of Yamaha Aventage RX-A840.

PROS
DSD via HDMI 👍
4K or 8K Video Passthrough 👍
4K or 8K Signal Upscaling 👍
MHL Input 👍
DLNA 1.5 👍
Ethernet 👍
Wi-Fi 👍
Bluetooth 👍
New HDCP Version 👍
Many HDMI Inputs 👍
USB Input 👍
Phono Input 👍
Composite Video Inputs 👍
Component Video Inputs 👍
Analog Pre-Outs 👍
Zones 👍
Analog Tuner 👍
Internet Radio 👍
Spotify 👍
Napster 👍
SiriusXM Internet Radio 👍
CONS
No Front Wide Channel Support 👎
No Dolby Atmos 👎
No Dolby Atmos Height Virtualization 👎
No DTS:X 👎
No DTS Neural:X 👎
No DTS Virtual:X 👎
No IMAX Enhanced 👎
No Auro 3D with Auro-Matic Upmixer 👎
No DTS Dialog Control 👎
No Audyssey Dynamic EQ 👎
No Audyssey Dynamic Volume 👎
No Audyssey LFC 👎
No Audyssey Sub EQ HT 👎
No HDR10 👎
No HDR10+ 👎
No Dynamic HDR 👎
No Dolby Vision 👎
No Auto Low Latency Mode Pass-through 👎
No VRR 👎
No QFT 👎
No FireConnect 👎
No FlareConnect 👎
No MusicCast 👎
No Chromecast Built-In 👎
No DTS Play-Fi 👎
Does not Work with Amazon Alexa 👎
Does Not Work with SONOS 👎
No eARC 👎
No Multi-Channel Input 👎
No Pandora 👎
No Tidal 👎
No Deezer 👎

Major Changes from its predecessor

Here we are comparing Yamaha Aventage RX-A840 to its predecessor RX-A830 and displaying the major changes.

UPGRADES Yamaha Aventage RX-A840 Yamaha Aventage RX-A830
Gapless Playback
Video Signal Passthrough up to 4K/60p (YCbCr 4:4:4) up to 4K/30p
Video Signal Upscaling up to 4K/60p (YCbCr 4:4:4) up to 4K/30p
Wi-Fi with Wireless Direct via optional YWA-10 adapter (sold separately)

For more detailed comparison between the models please visit Yamaha Aventage RX-A840 vs Yamaha Aventage RX-A830.

Selected Features

Amplifier

Yamaha Aventage RX-A840 has 7 channel amplifier and delivers 100 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) and also has a stable performance at 4 Ω load.


Video Features

The Receiver has 4K passthrough up to 60p and 4K upscaling up to 60p.


Adaptive DRC

Yamaha Aventage RX-A840 features Adaptive DRC (Dynamic Range Control) which automatically adjusts the dynamic range of the sound according to the volume level. This ensures that you hear clear dialog and vocals, and all sound effects at comfortable levels. There is no need to adjust the volume level as you listen; everything from whispers to big explosions will be heard clearly and comfortably at the same volume setting. It also tones down loud TV commercials, and is ideal for low-volume, late-night listening, when you do not want to disturb others.


Room Correction

Yamaha Aventage RX-A840 comes with YPAO (R.S.C. with Multipoint measurement) room correction system and includes the calibration microphone.


Connectivity

Yamaha Aventage RX-A840 can be connected to internet using ethernet cable or built-in wi-fi adapter. It can also connect to bluetooth devices via optional YBA-11 adapter (sold separately). The Receiver supports AirPlay. It has 8 HDMI inputs and HDCP 2.2 copy protection. There is a phono input with built-in phono stage for connecting the cartridge output of the turntable directly to the Receiver. There are 7.2 channel analog pre-outs for external amplification.

Front panel has HDMI (MHL support), USB, analog audio and composite inputs.

Image cannot be found Image cannot be found

Detailed Specifications

Here we list all the available features and specifications of Yamaha Aventage RX-A840.

BASICS
BrandYamaha
SeriesAventage
ModelRX-A840
TypeA/V Receiver
CountryAsia
Release Year2014
AMPLIFIER
Channels7.2
Front Wide Channel Support
THX™ Certification
Continuous 6 Ω Rated
Certified 4 Ω Performance
Bi-amp Capability
AUDIO
Surround:AI™
DACBurr-Brown
Maximum Channel Processing7.1
Air Studios Monitor Certification
Dolby Atmos
Dolby Atmos Height Virtualization
Dolby TrueHD
Dolby Digital Plus
Dolby Surround Upmixer
Dolby Pro Logic PLIIx
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
PCM 2-ch/Multi-ch Input
Music Playback via USBMP3, WMA, AAC, Apple Lossless, WAV, FLAC
High Resolution Music Playback via USB and/or Network up to 192 kHz
High Resolution Audio Formats via USBApple Lossless, WAV, FLAC
Multi-Channel Music File Playback via USB
Gapless Playback
DSD via HDMI 2-ch/Multi-ch Input
DSD to PCM Converter
USB DAC
Jitter Reduction Ultra low jitter PLL circuitry
DTS Dialogue Control
Dialog Level Adjustment
Dialog Normalization
Dialogue Lift no presence speakers required
Compressed Music Enhancer
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
Straight Decoding Mode
Pure Direct Mode with Video On mode
CINEMA DSP 3D
DSP Programs17
SILENT CINEMA / Virtual CINEMA DSP
Virtual Speakers
CALIBRATION
Auto Speaker Calibration System with Mic. YPAO sound optimization (R.S.C. with Multipoint measurement)
YPAO Volume
PEQ for SUBDown to 31 Hz
VIDEO
Video Signal TypePAL
Video Signal Format (Video Covnersion)NTSC/PAL
HDR10
HDR10+
Dynamic HDR
BT.2020 color space
Dolby Vision
Hybrid Log Gamma (HLG)
Quick Media Switching (QMS)
Auto Low Latency Mode (ALLM)
Variable Refresh Rate (VRR)
Quick Frame Transport (QFT)
3-D Ready
Video Signal Passthroughup to 4K/60p (YCbCr 4:4:4)
Video Signal Upscaling up to 4K/60p (YCbCr 4:4:4)
Analog To HDMI Upconversion Component**, Composite
Component Video Upscaling
Analog to Analog Video conversion
Component Video Maximum Resolution1080i
Video Parameter Adjustments
isf Certified Calibration Control
CONNECTIVITY
MHL Input
DLNA 1.5
FireConnect
FlareConnect
MusicCast
Chromecast Built-In
DTS Play-Fi
Works with Amazon Alexa
Works with SONOS
AirPlay AirPlay
Apple Product Connection iPod, iPhone and iPad
Remote App (iPhone / iPad, Android™ phone / tablet, Kindle Fire™)
InstaPrevue Input Source Prevue
Ethernet
Ethernet Switch
Wi-Fi with Wireless Direct
Bluetooth via optional YBA-11 adapter (sold separately)
HDBaseT Compatible
Enhanced Audio Return Channel (eARC)
HDCP Version2.2
HDMI Inputs8 (1 front)
HDMI Outputs2
USB InputiPod® / iPhone® / iPad®, USB memory, portable audio player
USB DC Out Port (USB DC output 5 V / 0.5 amp)
Analog Audio Line Inputs5 (1 front)
Analog Audio Line Outputs1
Phono Input
Optical Inputs2
Optical Outputs
Coaxial Inputs/Outputs2 / No
Composite Video Inputs5 (1 front)
Composite Video Outputs2
S-Video Inputs
S-Video Outputs
Component Video Inputs2
Component Video Outputs1
PC In
Multi-Channel Input
Analog Pre-Outs7.2
XLR Inputs
XLR Pre-outs
Front A/V InputsHDMI (MHL support), USB, analog audio, composite
Speaker A/B
Headphone Out 6.3 mm
ZONES
Zones2
Powered ZonesZone 2
Zone 2 OutsLine Out
Zone B Video Output
Zone GUI
RS-232 Interface
+12V Trigger Output (1)
Remote (IR) Input/Output1 / 1
Party Mode
MISC
On-Screen DisplayGraphical user interface
SCENESCENE (four sets)
Web Control
PreAmp Mode
Remote Controller
Detachable Power Cord
dockport
RADIO
Analog Tuner FM/AM
Presets40
Digital Radio
Internet Radio vTuner
Pandora
Spotify
Tidal
Deezer
Napster
SiriusXM Internet Radio
CONSTRUCTION
A.R.T. Wedge
Speaker Terminals9
Large Speaker Terminals9
Color-Coded Speaker Terminals
Gold plated RCA terminals
POWER
Power SupplyAC 220-240 V, 50/60 Hz
Power Consumption270 W
Maximum Power Consumption590 W
Standby Power0.1 W
GENERAL
ECO Mode / Hybrid Standby Function
Auto Power Standby
Dimensions (W x H x D)435 mm x 171 mm x 367 mm (with antenna: 435 mm x 234 mm x 380 mm)
17-1/8" x 6-3/4" x 14-1/2" (with antenna: 17-1/8" x 9-1/4" x 15")
Weight10.6 kg (23.4 lbs)
Warranty3 Years
SPECS
Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC)100 W (0.09% 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 Power Output (8 Ω, 1 kHz, 1 channel Driven, JEITA)165 W (10% THD)
Rated Power Output (4 Ω, 1 kHz, 1 channel Driven)160 W (0.9% THD)
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
THD0.06% (AV 5 etc. to Front, Pure Direct, 20 Hz - 20 kHz, 50 W, 8 Ω)
THD (Phono)0.02% (PHONO to AV OUT, 20 Hz - 20 kHz, 1 V)
Damping Factor100 (Front, 20 Hz - 20 kHz, 8 Ω)
Input Sensitivity and Impedance (Line)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 Impedance1.0 V/1.2 kΩ
Rated Lineout Level and Impedance200 mV/1.2 kΩ (AV OUT)
Rated Headphone Jack Output Level and Impedance100 mV/560 Ω (AV 5 etc., 1 kHz, 50 mV, 8 Ω)
S/N Ratio (Line, IHF-A)110 dB
S/N Ratio (Phono MM, IHF-A)96 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
Channel Separation at 1 kHz/10 kHz (PHONO)60 dB/55 dB
DSD Sampling Rates via HDMI2.8 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)
Video Maximum Input1.5 Vp-p
Video Frequency Response5 Hz to 60 MHz, -3 dB (Component)
Video S/N Ratio50 dB
Ethernet Standard10BASE-T/100BASE-TX
Wi-Fi StandardIEEE 802.11 b/g/n
HDMI Input/MHL Terminal5 V, 1 A
USB TerminalUSB2.0 5 V, 2.1 A
FM Frequency87.5/87.50 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 RatioMono/Stereo: 71 dB/ 70 dB
FM Harmonic Distortion (IHF, 1 kHz)Mono/Stereo: 0.5%/0.6%
AM Frequency530/531 MHz - 1710/1611 MHz

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

Successor

In 2015 Yamaha Aventage RX-A840 was replaced by RX-A850. Let us now have a look at some important changes that the successor brought.


UPGRADES Yamaha Aventage RX-A850 Yamaha Aventage RX-A840
Dolby Atmos
Dolby Surround Upmixer
HDR10
MusicCast
Works with Amazon Alexa on MusicCast (Voice control using your Alexa device like Echo, Dot, Tap and Show)
Bluetooth via optional YBA-11 adapter (sold separately)

DOWNGRADES Yamaha Aventage RX-A850 Yamaha Aventage RX-A840
MHL Input
Less Analog Audio Line Outputs 1
Less Composite Video Outputs 1 2
Napster

For more detailed comparison between the models please visit Yamaha Aventage RX-A850 vs Yamaha Aventage RX-A840.

Amazon Affiliate Disclosure

ZKelectronics is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for website owners to earn advertising fees by advertising and linking to Amazon (.com, .co.uk, .ca, etc) and any other websites that may be affiliated with Amazon Service LLC Associates Program.