Onkyo TX-NR656 vs Onkyo TX-NR555

Votes 1 1
Rating 5 5

Onkyo TX-NR656 vs Onkyo TX-NR555

Onkyo TX-NR656 vs Onkyo TX-NR555: Which Model is Better

Thinking about purchasing one of the Onkyo home theater models that were released in 2016 compare their performance, connectivity options and functionality. Is Onkyo TX-NR656 vs TX-NR555 more solid and powerful? Are the few minor improvements worth extra money?

Features

The common complains of the TX-NR555 model’s users are due to imperfection of the Wi-Fi option. Additionally, some services, for example, Pandora, Dolby Atmos or Chromecast often hang when starting. The HDMI signal can’t be synced on a cable and the firmware requires updating. Its sleep timer can be found somewhere within the menu, but not too fast or easily. Unfortunately, the TX-NR656 model is also slow, coming with the same Android app and Bluetooth issues. But its menu is more complete and user-friendly. Meanwhile, the AccuEQ auto calibration of both models is great, including an equalizer and a quick menu, getting adjusted to the room acoustic.

Connections

The TX-NR555 model comes with 6 HDMI inputs, but only 3 of them support HDCP 2.2. Among its basic drawbacks is absence of the Bluetooth output. Only the Bluetooth input is available. Onkyo TX-NR656 vs TX-NR555 is better in terms of connectivity, as it has 8 HDMI inputs and 2 outputs. The rear location of the USB connection of both home theaters is not a great inconvenience for most customers, but their phono inputs are very beneficial for the people that prefer vinyl records playing. Additionally, the remote that is the same for both models is intuitive, simplified. The buttons are large and not too numerous.

Performance

Onkyo TX-NR555 vs TX-NR656 is a bit less powerful versus its newer counterpart. As to the sound, it’s about the same. Their low-frequency performance is visceral, notable for deep bass (if you connect the performant, bi-amp speakers). However, the older model’s sound is a bit less detailed at high volumes versus the sound that Onkyo TX-NR656 amp produces. The low-frequency response is very good and powerful.

Conclusion

The TX-NR555 model lacks some HDMI inputs, being a bit less powerful and producing not very detailed sound at high frequencies and high volumes. Onkyo TX-NR656 home theater’s control app was upgraded and it sounds pretty good for movies, showing good dynamics, producing crisp and accurate dialogues.

Onkyo TX-NR555 review

The 7.2 amplifier is feature-rich and user-friendly. Its menu is intuitive and smooth, but not complete, requiring upgrading, as some services hang when starting. So is the control app that is quite good, but not perfect. The ports are numerous, but only 3 of them are HDCP 2.2 compatible. USB connection is located on the rear side that is not too handy. However, the beneficial phono input is available. Additionally, the device produces accurate, powerful sound, that is not too detailed at high frequencies.

Pros:

  • easy to use
  • intuitive and simple remote
  • great audio performance

Cons:

  • common app and services issues
  • no Bluetooth output
  • not detailed sound at high frequencies

Onkyo TX-NR656 review

The home theater is up-to-date, easy to set up and calibrate, coming with a quick menu and simplified remote. The app control are services are still a bit slow, sometimes connecting on the second or the third try. It has the generous number of ports that are commonly sufficient for the users. A phono input is available, allowing a turntable connection. The rear USB connection is not an issue for most people. Additionally, the amplifier produces great, crisp and dynamic sound that stands out by mellow bass and clear dialogue reproduction.

Pros:

  • detailed menu
  • upgraded app
  • great sound

Cons:

  • rear USB connection

AV receivers comparison chart

Onkyo TX-NR656

Onkyo TX-NR656 review

Sep 23, 2019

The Onkyo TX-NR656 supports revolutionary DTS: X and Dolby Atmos immersive technologies, operating in terms of “audio objects” rather than separate audio channels - the receiver optimall...

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Common

Product

Onkyo TX-NR656
Onkyo TX-NR555

Model

TX-NR656
TX-NR555

Brand

Onkyo
Onkyo

Reviews

268
268

Amplifier

Channels

7.2
7.2

Stereo power (RMS), W/Ohm

160/6 1KHz
130/6 1KHz

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
Hi-Grade 384 KHz/32-bit

Bi-amping

Pure direct (straight)

Auto speaker calibration

AccuEQ
AccuEQ

Speaker A/B switching

Other audio features

Theater-Dimensional, Double Bass Function, CinemaFILTER
Double Bass Function, CinemaFILTER

Connectivity

Wi-Fi

2.4/5GHz

USB

1 (USB 2.0)
1 (USB 2.0)

Bluetooth

Ethernet (RJ45)

1
1

DLNA

MHL

Streaming services

Apple Music (AirPlay)

AirPlay
AirPlay

Google Play Music

Amazon Music

Spotify

Other streaming services

Deezer, TuneIn Radio
Deezer, TIDAL, Pandora

Extensive connection

HDMI input/output

8/2
6/1

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
2

Coaxial digital input

1
1

Composite input

2
2

Component input/output

2/0
2/0

Phono (MM) input

Front panel connectors

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

Multi channel preamp output

Video features

HDR (High Dynamic Range)

4K signal pass-through

4K 60p
4K 60p

HDMI signal pass-through

3D signal pass-through

HDMI pass-through in standby mode

Video conversion

analog to HDMI
analog to HDMI

Analog to HDMI scaling

HDMI to HDMI scaling

Dolby Vision

Other video features

DeepColor, x.v.Color
DeepColor, x.v.Color

Additional features

Voice control

App control

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

Display

fluorescent
colour OSD

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
2

Zone audio output

speaker, preout
speaker, preout

Zone HDMI output

Multi-room control

Onkyo Remote App, FlareConnect
FlareConnect

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
has not

DTS:X

DTS HD Master

DTS Virtual:X

DTS Neural:X

DTS (other)

has not
has not

Auro-3D

IMAX Enhanced

Multichannel stereo

Audio file formats

MP3

WMA

AAC

WAV

FLAC

ALAC

Other audio file formats

AIFF
has not

Power

Operational power consumption, W

570
460

Standby consumption, W

0.15
0.1

Removable power cord

User manual

Manual

Dimensions

Size W x H x D, cm/inches

57 x 28.8 x 46.8/22.4 x 11 x 18.1
43.5 x 17.3 x 37.8/17 x 6.7 x 14.5

Weight, kg/lbs

13/28.6
9.4/20.7
Onkyo TX-NR656
Onkyo TX-NR555
Onkyo TX-NR656
Onkyo TX-NR555

AV receivers CHooseratoR comparison rating

  • better
  • worse
  • 7.2
  • 7
  • 7.2Onkyo TX-NR656
  • 7Onkyo TX-NR555

The Onkyo TX-NR656 is better receiver in this comparison. Check Onkyo TX-NR656 price

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