Yamaha RX-V671 vs Onkyo TX-8140 review

Votes 1 1
Rating 5 5

AV receivers comparison chart

Yamaha RX-V671 vs Onkyo TX-8140 review

Yamaha RX-V671
vs
Onkyo TX-8140

An affordable AV receiver is always a good option to consider, so Yamaha RX-V671 vs Onkyo TX-8140 comparison definitely makes sense.

Amplifier

A significant difference between the receivers in the number of channels, Yamaha RX-V671 has 7.1 versus 2.0 for Onkyo TX-8140. Regarding power, then RX-V671 has such a W/Ohm ratio - 90/8, 150/4 when TX-8140 has a power of 80/8, 110/6. The THD is 0.09% for the RX-V671 but 0.08% for the TX-8140.

Audio features

Characteristics of digital to analog converter (DAC) are different, Burr-Brown 192 KHz/24-bit for RX-V671 and AK4458 384 KHz/32-bit for the TX-8140. Only the RX-V671 supports Bi-amping feature. Each of the AV receivers can transmit an audio signal directly to the amplifier and bypasses any DSP processing.

Connectivity

Only the Onkyo TX-8140 can connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. Each of these units does not support Apple Music. Only the TX-8140 supports Spotify. The RX-V671 can work with the audio stream from Napster, and the TX-8140 can receive a content from SiriusXM.

Video features

HDR is not available on each model. Only the RX-V671 provides HDMI signal transmission in standby mode. The RX-V671 can scale the input HDMI signal, unlike the TX-8140. The HDR standard - Dolby Vision is not supported by these receivers. Only the RX-V671 supports HDMI Audio Return Channel (ARC). Unfortunately, HDMI eARC is not available on monitored devices. Of the two receivers in our comparison, HDMI CEC is present in only the RX-V671. These compared receivers have a built-in phono stage for connecting a vinyl player. A voice control is not available. An ECO mode is not present in each of the AV receivers. The setup assistant will help you configure Onkyo TX-8140.

Multichannel surround

None of the rivals equipped with Dolby Atmos multichannel audio decoder. The receivers do not support the surround sound technology DTS:X.

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General

Item

Yamaha RX-V671
Onkyo TX-8140

Model

RX-V671
TX-8140

Brand

Yamaha
Onkyo

Reviews

263
165

Amplifier

Channels

7.1
2.0

Stereo power (RMS), W/Ohm

90/8, 150/4
80/8, 110/6

Output impedance, Ohm

8, 4
8, 6

Frequency response

10Hz-100KHz
10Hz-100KHz

THD in stereo, %

0.09
0.08

Audio features

Digital to analog converter (DAC)

Burr-Brown 192 KHz/24-bit
AK4458 384 KHz/32-bit

Bi-amping

Pure direct (straight)

Auto speaker calibration

YPAO

Speaker A/B switching

Other audio features

CINEMA DSP 3D, Compressed Music Enhancer
WRAT, Hi-Res audio

Connectivity

Wi-Fi

USB

1 (USB 2.0)
1 (USB 2.0)

Bluetooth

Ethernet (RJ45)

1
1

DLNA

MHL

Streaming services

Apple Music (AirPlay)

Amazon Music

Spotify

Other streaming services

Napster
SiriusXM

Extensive connection

HDMI input/output

6/1
0/0

HDMI ARC (Audio Return Channel)

HDMI eARC (Enhanced Audio Return Channel)

HDMI CEC

Digital content protection (HDCP)

HDCP 2.2

Subwoofer output (LFE)

1
1

Headphone output

1 x 6.3
1 x 6.3

Optical digital input

2
2

Coaxial digital input

2
2

Composite input

5
0

Component input/output

2/1
0/0

Phono (MM) input

Front panel connectors

USB, HDMI, phones, setup mic, AUX
USB, phones

Multi channel preamp output

Video features

HDR (High Dynamic Range)

4K signal pass-through

4K/60Hz

8K signal pass-through

HDMI signal pass-through

3D signal pass-through

HDMI pass-through in standby mode

Video conversion

analog to HDMI

Analog to HDMI scaling

HDMI to HDMI scaling

Dolby Vision

Other video features

DeepColor, x.v.Color
has not

Additional features

Voice control

App control

iPhone, iPod, Android
iPhone, iPad, iPod, Android

Display

colour OSD
fluorescent

Tuner

AM, FM
AM, FM

Sleep timer

Auto power off

ECO mode

Graphical user interface (GUI)

Setup assistant

Firmware update

network, USB
network, USB

Other additional features

has not
has not

Multi-room

Multi-room zones

2
has not

Zone audio output

speaker, preout
has not

Zone HDMI output

has not

Multi-room control

has not
has not

RS-232

0
0

Remote control input/output (IR)

1/1
1/1

DC trigger output (12V)

1
0

Multichannel surround

Dolby Atmos

Dolby TrueHD

Dolby Surround

Dolby (other)

Dolby Digital Plus, Dolby Pro Logic
has not

DTS:X

DTS HD Master

DTS Virtual:X

DTS Neural:X

DTS (other)

DTS 96/24, DTS-HD, DTS-EXPRESS
has not

Auro-3D

IMAX Enhanced

Multichannel stereo

Audio file formats

MP3

WMA

AAC

WAV

FLAC

ALAC

Other audio file formats

has not
has not

Power

Operational power consumption, W

400

Standby consumption, W

0.1
0.15

Removable power cord

User manual

Manual

Dimensions

Size W x H x D, cm/inches

43.5 x 16.1 x 36.3/17 x 6.3 x 14.1
43.5 x 14.9 x 32.8/17 x 5.5 x 12.6

Weight, kg/lbs

10.5/22
8.2/18.1

Other

Release year

2011
2016
Yamaha RX-V671
Onkyo TX-8140
Yamaha RX-V671
Onkyo TX-8140

AV receivers SoundInspiration comparison rating

  • better
  • worse
  • 6.1
  • 6.5
  • 6.1Yamaha RX-V671
  • 6.5Onkyo TX-8140