Onkyo TX-NR555 vs Onkyo TX-SR494 review

Votes 1 1
Rating 5 5

AV receivers comparison chart

Onkyo TX-NR555 vs Onkyo TX-SR494 review

Onkyo TX-NR555
vs
Onkyo TX-SR494

Onkyo TX-NR555 vs Onkyo TX-SR494 – that is a question.

Amplifier

AV receivers under review have the same number of channels. In terms of power, there are differences, the TX-NR555 has such a ratio W/Ohm - 130/6, while the TX-SR494 has a power of 135/6. A common feature for devices is the same total harmonic distortion - 0.08%.

Audio features

The manufacturer installed different DACs, the TX-NR555 received the model Hi-Grade 384 KHz/32-bit, but the TX-SR494 is equipped with AKM 384 KHz/32-bit. Each of the compared opponents supports Bi-amping. Both Onkyo TX-NR555 and Onkyo TX-SR494 can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Each of the receivers has a Bluetooth connector. The TX-NR555 has access to the Spotify service. The quality of 4K/60Hz signal remains unchanged when transmitting from a source to a TV or projector via HDMI for both receivers. Signaling over HDMI in standby mode can provide the TX-NR555 and the TX-SR494. None of the devices can increase the resolution of the incoming video signal. Review participants do not have the Dolby Vision feature.

Extensive connections

The number of HDMI inputs/outputs varies depending on the receiver, the TX-NR555 has 6/1, and the TX-SR494 has 4/1.Onkyo TX-NR555 connectionsOnkyo TX-SR494 connections HDMI Audio Return Channel is implemented in both devices. HDMI eARC is not supported by the TX-NR555 and the TX-SR494. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. TX-NR555 and TX-SR494 support the standard HDCP 2.2. In the presence of a built-in phono stage for connecting a vinyl player only at Onkyo TX-NR555.

Additional features

Ability to create 2 Multi zones inherent in both AV receivers. Voice control of the basic functions of the receiver is not realized in both models. There is an ECO mode in TX-NR555. The Onkyo TX-SR494 can be properly configured using the setup assistant.

Multichannel surround

A Dolby Atmos multichannel audio format is available both models. A DTS:X surround technology is supported by devices from our comparison.

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General

Item

Onkyo TX-NR555
Onkyo TX-SR494

Model

TX-NR555
TX-SR494

Brand

Onkyo
Onkyo

Reviews

82
148

Amplifier

Channels

7.2
7.2

Stereo power (RMS), W/Ohm

130/6
135/6

Output impedance, Ohm

6
6

Frequency response

10Hz-100KHz
10Hz-100KHz

THD in stereo, %

0.08
0.08

Audio features

Digital to analog converter (DAC)

Hi-Grade 384 KHz/32-bit
AKM 384 KHz/32-bit

Bi-amping

Pure direct (straight)

Auto speaker calibration

AccuEQ
AccuEQ

Speaker A/B switching

Other audio features

Double Bass Function, CinemaFILTER
Advanced Music Optimizer, Hi-Res audio

Connectivity

Wi-Fi

2.4/5GHz

USB

1 (USB 2.0)
1 (USB 2.0)

Bluetooth

Ethernet (RJ45)

1

DLNA

MHL

Streaming services

Apple Music (AirPlay)

AirPlay

Amazon Music

Spotify

Other streaming services

Deezer, TIDAL, Pandora
has not

Extensive connection

HDMI input/output

6/1
4/1

HDMI ARC (Audio Return Channel)

HDMI eARC (Enhanced Audio Return Channel)

HDMI CEC

Digital content protection (HDCP)

HDCP 2.2
HDCP 2.2

Subwoofer output (LFE)

2
2

Headphone output

1 x 6.3
1 x 6.3

Optical digital input

2
1

Coaxial digital input

1
1

Composite input

2
0

Component input/output

2/0
0/0

Phono (MM) input

Front panel connectors

phones, setup mic, AUX
USB, phones

Multi channel preamp output

Video features

HDR (High Dynamic Range)

HDR10

4K signal pass-through

4K/60Hz
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
DeepColor, x.v.Color, HLG, BT.2020

Additional features

Voice control

App control

iPhone, iPad, 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
USB

Other additional features

has not
has not

Multi-room

Multi-room zones

2
2

Zone audio output

speaker, preout
speaker

Zone HDMI output

Multi-room control

FlareConnect
has not

RS-232

0
0

Remote control input/output (IR)

0/0
0/0

DC trigger output (12V)

0
0

Multichannel surround

Dolby Atmos

Dolby TrueHD

Dolby Surround

Dolby (other)

has not
Dolby Digital Plus, Dolby Atmos Height Virtualization

DTS:X

DTS HD Master

DTS Virtual:X

DTS Neural:X

DTS (other)

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

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

460
490

Standby consumption, W

0.1
0.1

Removable power cord

User manual

Manual

Dimensions

Size W x H x D, cm/inches

43.5 x 17.3 x 37.8/17 x 6.7 x 14.5
43.5 x 16.1 x 32.7/17 x 6.3 x 12.6

Weight, kg/lbs

9.4/20.7
8.2/18.1

Other

Release year

2016
2019
Onkyo TX-NR555
Onkyo TX-SR494
Onkyo TX-NR555
Onkyo TX-SR494

AV receivers SoundInspiration comparison rating

  • better
  • worse
  • 7
  • 5.5
  • 7Onkyo TX-NR555
  • 5.5Onkyo TX-SR494

The Onkyo TX-NR555 is better receiver in this comparison. Check Onkyo TX-NR555 price