Dec 20, 2019
Read MoreOnkyo TX-NR646 vs Onkyo TX-NR545 review
Onkyo TX-NR646 review
Onkyo TX-NR646 produces 160 W/channel and is equipped with the new AK4458 DAC from Asahi Kasei, providing "transparent" soundtracks. In addition to modern audio decoders, the unit has support for HDCP 2.2 for playing 4K streaming video with Dolby Atmos or DTS: X. In addition to this, the High Dynamic Range is supported. The receiver is equipped with an automatic equalizer, as well as a special connector for connecting a vinyl player. And also the manufacturer provides a flexible calibration system (AccueEQ). The device provides audio streaming via Wi-Fi, AirPlay, and Bluetooth. Spotify is also supported.
Onkyo TX-NR545 review
The 7.2-channel Onkyo TX-NR545 provides smooth and surround sound in games and movies, as well as powerful sound, sensitivity, and dynamic accuracy when playing music, including streaming. Between the receivers from Onkyo TX-NR646 vs Onkyo TX-NR545 comparison, there is a difference in amplifier power, it is 100 W / channel at 6 Ohms versus 115 W / channel with the same impedance. The device uses a discrete amplification system, which ensures maximum performance when using Dolby Atmos. The TX-NR545 has built-in Bluetooth and Wi-Fi receivers and supports AirPlay technology. For streaming music, there is a Spotify Connect application.
Onkyo TX-NR646 pros and cons
Pros
- There is a Quick Setup function to simplify receiver setup
- It is possible to display an image in a 21:9 format
Cons
- The device has poor responsiveness to music playback commands such as pause \ start
Onkyo TX-NR545 pros and cons
Pros
- To control the receiver and stream audio stored on the phone, the Onkyo Remote application is provided
- TX-NR545 uses high-performance 384 kHz / 32 bit DAC AK4458 from Asahi Kasei
Cons
- There is no way to play files from external USB devices
Onkyo TX-NR646 vs Onkyo TX-NR545
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Common
Product
Onkyo TX-NR646
Onkyo TX-NR545
Model
TX-NR646
TX-NR545
Brand
Onkyo
Onkyo
Reviews
403
99
Amplifier
Channels
7.2
7.2
Stereo power (RMS), W/Ohm
160/6
100/6
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
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
Theater-Dimensional, 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
Amazon Music
Spotify
Other streaming services
Deezer, TuneIn Radio
Tunein Radio
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
3
4
Component input/output
2/0
2/0
Phono (MM) input
Front panel connectors
USB, HDMI, phones, setup mic, AUX
phones, setup mic, AUX
Multi channel preamp output
Video features
HDR (High Dynamic Range)
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
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
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
2
Zone audio output
speaker, preout
speaker, preout
Zone HDMI output
Multi-room control
Onkyo Remote App
Onkyo Remote App
RS-232
0
0
Remote control input/output (IR)
1/0
1/0
DC trigger output (12V)
0
0
Multichannel surround
Dolby Atmos
Dolby TrueHD
Dolby Surround
Dolby (other)
Dolby Digital Plus
Dolby Digital Plus
DTS:X
DTS HD Master
DTS Virtual:X
DTS Neural:X
DTS (other)
has not
DTS-ES, DTS Neo:6 Cinema, DTS 96/24, 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
630
430
Standby consumption, W
0.15
0.15
Removable power cord
Dimensions
Size W x H x D, cm/inches
43.5 x 17.3 x 33/17 x 6.8 x 13
57 x 28.7 x 42.3/22.4 x 11 x 16.5
Weight, kg/lbs
9.4/19.8
11.5/24.2
Other
Release year
2015
2015
AV receivers CHooseratoR comparison rating
- 7.4Onkyo TX-NR646
- 7.2Onkyo TX-NR545
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