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Common
Model
SC-LX501
VSX-831
TX-NR646
Brand
Pioneer
Pioneer
Onkyo
Rating on Amazon
4.1
3.4
3.7
Reviews on Amazon
94
28
397
Functions
Digital player
Internet radio
Network audio player
Amplifier class
D
D
D
Audio Formats
AAC
AIFF
Apple lossless
DSD
FLAC
MP3
WAV
WMA
Built-in Decoders
DTS neural:X
DTS-HD master audio
DTS:X
Dolby atmos
Dolby digital plus
Dolby surround
Dolby true HD
Power device
Power consumption cperational. Watt
250
380
360
Power consumption stand by, Watt
0.15
0.1
0,1
Built-in display
Type
fluorescent
fluorescent
fluorescent
Colour
black
black
black
Amplifier
Output power /total. Watt
560
525
580
Output power / channel
120 Watt. 200 Watt. 560 Watt
140 Watt. 80 Watt
100 Watt. 170 Watt
Output Impedance / channel
Frequency response
1 kHz
20 - 20000 kHz. at 1 kHz
20 - 20000 kHz. at 1 kHz
Total harmonic distortion (THD)
0.08 %. 1 %
0.08 %. 1%
0.08 %. 0.9 %
Channel qty
2
1.2
1,2
Connectivity Interfaces
Bluetooth
Wi-Fi
IEEE 802.3
IEEE 802.3u
Signal processing
HDMI pass-through
up to 4K
up to 4K
Up to 4K
Video conversion/scaling
analog to HDMI up conversion
HDMI to HDMI scaling
Analog to HDMI up conversion
3D pass-through
has not
Upscaling via HDMI
up to 4K
up to 4K
has not
Connector Type
19 pin HDMI type A
RCA x 2
RCA x 3
RJ-45
TOSLINK
Banana/spade x 2
Click-fit x 2
Mini-phone 3.5 mm
Phone stereo 6.3 mm
4 pin USB Type A
9 pin D-Sub
F connector
RCA
Media Content Source
Bluetooth
Network
USB-host
Radio
Tuner type
digital
digital
digital
Tuner bands
AM/FM
AM/FM
AM/FM
Preset station qty
40
40
40
Additional Features
A-B speaker switch
AIR Studios monitor certification
Three-zone capability
X.v.Color
Advanced sound retriever (ASR) technology
Apple air-play support
Audio return channel (ARC)
Bi-amplifying
Deep color
MCACC Pro
Auto power off
Pure direct mode
Dual-zone capability
Smartphone remote controlled
Sound features
Sound output mode
Surround Sound
Surround Sound
Surround Sound
Audio D/A converter
32bit / 384kHz
32bit / 384kHz
32bit / 384kHz
Surround sound effects
Front Stage Surround Advance
Front Stage Surround Advance
Theater-Dimensional Virtual Surround
Surround system class
7.2 channel
5.2 channel
7.2 channel
Digital sound processor (DSP)
DSP preset qty
12
6
Digital content protection
HDCP 2.2
HDCP 2.2
has not
Clock
Built-in clock
Sleep timer
has not
Dimensions
Shipping size
15.6 x 17.1 x 7.4 inches
14.6 x 17.1 x 6.8 inches
12.9 x 17.1 x 6.8 inches
Product weight
31.5 pounds
19.8 pounds
20.7 pounds
Amplifier
Output Impedance / сhannel
4 Ohm. 8 Ohm
6 Ohm. 8 Ohm
6 Ohm. 8 Ohm
AV receivers comparison rating
- 50Pioneer SC-LX501
- 35Pioneer VSX-831
- 36.5Onkyo TX-NR646
The best receiver is Pioneer SC-LX501. Check Pioneer SC-LX501 price on Amazon
