Onkyo TX-NR646 vs Onkyo TX-NR545

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Votes 1 1
Rating 5 5

Common

Product

Onkyo TX-NR646
Onkyo TX-NR545

Model

TX-NR646
TX-NR545

Brand

Onkyo
Onkyo

Rating

3.6 of 5
3.7 of 5

Reviews

401
99

Amplifier

Total output power, W

580 W
700 W

Output power per channel, W

100 W, 170 W
115 W, 65 W

Output impedance, Ohm

6 Ohm, 8 Ohm
6 Ohms

Frequency response

20 Hz-20 kHz
20 Hz-20 kHz

Total harmonic distortion, THD

0.08 %
0.7 %

Channels

7
7

Signal-to-noise ratio

106 dB
106 dB

Connectivity interfaces

Bluetooth

Wi-Fi

Ethernet (RJ45)

USB

Connector type

HDMI inputs

8
6

HDMI outputs

2
1

AV inputs

2
6

Optical digital inputs

2
2

Optical digital outputs

has not
has not

Coaxial digital inputs

1
1

Coaxial digital outputs

has not
has not

Subwoofer outputs

2
2

USB

1
1

Phones

1
1

Sound features

Digital to analog converter (DAC)

32bit / 384kHz
32bit / 384kHz

Digital content protection

has not
HDCP 2.2

Additional features

Speaker A/B switching

Dual-zone capability

Three-zone capability

Bi-amping

Pure direct

Advanced sound retriever (ASR)

Audio return channel (ARC)

Smartphone remote control

Apple Air-play support

Signal processing

HDMI signal pass-through

Up to 4K
Up to 4K

Video conversion/scaling

Analog to HDMI up conversion
HDMI to HDMI scaling, analog to HDMI up conversion

3D signal pass-through

has not

Audio formats

MP3

WMA

AAC

AIFF

WAV

FLAC

Built-in decoders

DTS:X

Dolby Atmos

Dolby TrueHD

Built-in display

Type

fluorescent
fluorescent

Radio

Tuner bands

AM/FM
AM/FM

Number of preset station

40
40

Clock

Built-in clock

Sleep timer

has not

Power device

Operational power consumption, W

360 W
380 W

Standby consumption, W

0.1 W
0.1 W

User manual

Manual

Dimensions

Size W x H x D

12.9 x 17.1 x 6.8 inches
12.9 x 17.1 x 6.8 inches

Weight

20.7 pounds
19 pounds
Onkyo TX-NR646
Onkyo TX-NR545
Onkyo TX-NR646
Onkyo TX-NR545

AV receivers CHooseratoR comparison rating

  • better
  • worse
  • 14.8
  • 17
  • 14.8Onkyo TX-NR646
  • 17Onkyo TX-NR545

The Onkyo TX-NR545 is better receiver in this comparison. Check Onkyo TX-NR545 price

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