1-on-1 Comparison

Side-by-Side Comparison

Onkyo TX-SR383

Pioneer VSX-1131



  • 7.2 channels
  • 7.1 channel processing
  • 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
  • Dolby Atmos, DTS:X capable
  • HDR10, Dolby Vision, 4K Passthrough
  • Bluetooth
  • USB input


  • 7.2 channels
  • 7.1 channel processing
  • 100 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
  • Dolby Atmos, DTS:X capable
  • HDR10, Dolby Vision, 4K Upscaling, 4K Passthrough
  • AirPlay, Chromecast
  • Ethernet, Wi-Fi, Bluetooth
  • USB and Phono inputs

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Here we are comparing Onkyo TX-SR383 to Pioneer VSX-1131 to reveal their common strengths and weaknesses as well as the differences between them which will help you in making a correct decision before the purchase. Both receivers have 7 channel amplifiers with Onkyo TX-SR383's being less powerful.

We have evaluated both receivers. Pioneer VSX-1131 gets higher overall score in our ranking system which is based on the amplifier specifications, audio and video features, connectivity, multizone capabilities, radio and many other details.

Onkyo TX-SR383

Pioneer VSX-1131


Amplifier score is based on power ratings, minimum impedance load, power supply, transformer type, total harmonic distortion, damping factor, signal to noise ratio and other small details. Audio score depends on the number of channels, front wide channel support, maximum channel processing, support of audio formats, DAC specifications, room calibration algorithm... Video score is based on HDR, Dolby Vision and 4K passthrough, upscaling, analog to HDMI upconversion. Connectivity score is defined from all wired and wireless inputs and outputs, internet and bluetooth connections, HEOS, SONOS and others. Multizone score depends on the number of zones with their outputs. Radio score is evaluated form digital radio support and analog tuner with its frequency range, signal to noise ratio, harmonic distortion...

Advantage of Onkyo TX-SR383

This section shows those features and specifications which are the reason to choose Onkyo TX-SR383 over Pioneer VSX-1131.

Onkyo TX-SR383 has lower total harmonic distortion.

Onkyo TX-SR383 vs Pioneer VSX-1131
More Composite Video Outputs 1 vs
Longer Warranty 2 Years vs 1 Year Parts & Labor
Lower THD 0.06% (20 Hz - 20 kHz, 1 Channel Driven, 50 W) vs 0.08% (20 Hz - 20 kHz, half power)

Advantage of Pioneer VSX-1131

This section shows those features and specifications which are the reason to choose Pioneer VSX-1131 over Onkyo TX-SR383.

Pioneer VSX-1131 has more power per channel, bigger power supply and higher bluetooth standard. It supports DSD streaming via USB, internet radio, Pandora and Spotify. It has bi-amp capability and phono input.

Onkyo TX-SR383 vs Pioneer VSX-1131
Bi-amp capability vs
Music Playback via USB WMA, MP3, AAC vs MP3, WMA, AAC, Apple Lossless, WAV, FLAC, AIFF, DSD
Higher Resolution Music Playback via USB vs 64, 88.2, 96, 176.4, 192 kHz/24 bit
Multi-Channel Music File Playback via USB vs up to 192 kHz/24 bit
DSD via HDMI 2-ch vs 2-ch/Multi-ch Input
DSD via USB vs 2-ch Input
More Tone Control Channels Front L/R Channels vs All Channels
Video Signal Upscaling vs up to 4K
Analog To HDMI Upconversion vs Component**, Composite
FireConnect vs
Chromecast Built-In vs
AirPlay vs AirPlay
Remote Controll App vs iControlAV5 (for iOS and Android)
Ethernet vs
Wi-Fi vs
More HDMI Inputs 4 vs 7 (1 front)
More HDMI Outputs 1 vs 2 (simultaneous)
More Analog Audio Line Inputs 3 vs 5 (1 front)
Phono Input vs
More Optical Inputs 1 vs 2
More Component Video Inputs vs 1
Front A/V Inputs USB vs HDMI, USB, Mini-Jack
Speaker A/B vs
Zone 2 Outs vs Line Out
More Presets 30 vs 40
Internet Radio vs TuneIn
Pandora vs
Spotify vs
More Speaker Terminals 7 vs 9
More Large Speaker Terminals 2 vs 9
Bigger Power Supply 270 W vs 580 W
Higher Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC) 80 W (0.08% THD) vs 100 W (0.08% THD)
Higher Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA) 155 W (10% THD) vs 175 W (10% THD)
Newer Bluetooth Version 3.0 vs 4.1 + LE

Common Strengths and Weaknesses

Here we list common strengths and weaknesses of both receivers.

👍   Dolby Atmos
👍   Dolby TrueHD
👍   Dolby Digital Plus
👍   Dolby Surround Upmixer
👍   DTS:X
👍   DTS Neural:X
👍   DTS-HD Master Audio
👍   DTS-HD High Resolution Audio
👍   DTS 96/24
👍   DTS Express
👍   DTS-ES
👍   DSD via HDMI
👍   Compressed Music Enhancer
👍   Auto Speaker Calibration System with Mic.
👍   HDR10
👍   BT.2020 color space
👍   Dolby Vision
👍   3-D Ready
👍   4K or 8K Video Passthrough
👍   Bluetooth
👍   New HDCP Version
👍   USB Input
👍   Composite Video Inputs
👍   Zones
👍   Analog Tuner
👎   No Front Wide Channel Support
👎   Not Certified 4 Ω Performance
👎   No Dolby Atmos Height Virtualization
👎   No DTS Virtual:X
👎   No IMAX Enhanced
👎   No Auro 3D with Auro-Matic Upmixer
👎   No High-resolution Music Enhancer
👎   No HDR10+
👎   No Hybrid Log Gamma (HLG)
👎   No DLNA 1.5
👎   Does not Work with Amazon Alexa
👎   Does Not Work with SONOS
👎   No eARC
👎   No Multi-Channel Input
👎   No Analog Pre-Outs
👎   No Tidal
👎   No Deezer
👎   No Napster
👎   No SiriusXM Internet Radio

Selected Features


Onkyo TX-SR383 and Pioneer VSX-1131 have 7 channel amplifiers. Onkyo TX-SR383 delivers 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) and Pioneer VSX-1131 delivers 100 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) Since 2016 all receiver manufacturers have dropped front wide channel support and these models are no exceptions.

Video Features

Both receivers support 4K passthrough up to 60p. Pioneer VSX-1131 can do 4K upscaling up to 30p. The receivers support HDR10, Dolby Vision.


High-dynamic-range (HDR) video has greater dynamic range than standard-dynamic-range (SDR) video with brigter whites and deeper blacks. HDR10 was announced on August 27, 2015, by the Consumer Technology Association and uses the wide-gamut Rec. 2020 color space. It sends static metadata via video stream to the TV which calibrates its screen brightness and color according to that. HDR10 supports up to 1000 nits of brightness and 10-bit color which corresponds to 1024 shades of the primary RGB colors.

Dolby Vision

Dolby Vision is an update to HDR10 by adding dynamic metadata that can be used to more accurately adjust brightness levels up to 10,000 nits maximum brightness on a scene-by-scene or frame-by-frame basis and supports up to 12-bit color depth (4096 shades of RGB) and 8K resolution.

Dolby Atmos and Dolby Surround upmixer

Onkyo TX-SR383 and Pioneer VSX-1131 support Dolby Atmos with its Dolby Surround upmixer. They can be configured upto 5.1.2 channels using internal amplifiers.

Dolby Atmos is the first cinematic audio format in which sounds exist as individual entities, called audio objects. In Dolby Atmos, any sound - the helicopter, a car screeching around a corner, a melodic bird call - can exist as an independent audio object, free of channel restrictions. They can be precisely placed and moved anywhere in your room, including overhead, to flow above and around you in three-dimensional space. Through the use of audio objects, overhead sound, and all the richness, clarity, and power of Dolby sound, Dolby Atmos turns your room into an amazing place for entertainment. You'll feel like you're inside the action, in ways you've never experienced before.

Dolby Atmos for the home represents every sound in the original cinema mix as an audio object. Extensions to the Dolby Audio™ codecs, along with an advanced scalable algorithm, allow Dolby Atmos to be delivered via Blu-ray Disc and streaming media. A spatially-coded substream is added to Dolby TrueHD or Dolby Digital Plus. A Dolby Atmos audio/video receiver (AVR) adapts the cinema experience to your home theater from seven speakers to as many as 34 in 24.1.10 configuration, recreating the original artistic concept. The format supports up to 128 simultaneous independent audio objects in a mix for rich, realistic, and breathtaking sound. It recreates the director's original concept through descriptive metadata to provide customized playback for home theater and delivers sounds above you through overhead speakers, special upward-firing Dolby Atmos speakers, or a Dolby Atmos enabled sound bar.

If the content is not mixed in Dolby Atmos then the Dolby surround upmixer will expand the audio to all channels including ceiling speakers. The upmixer has replaced the Dolby Pro Logic II family with improved upmixing algorithms.

DTS:X and Neural:X upmixer

Onkyo TX-SR383 and Pioneer VSX-1131 support DTS:X with its Neural:X upmixer. Both of them can be configured upto 5.1.2 channels using internal amplifiers.

A technique used in DTS:X is similar to the one used in Dolby Atmos. Instead of a fixed number of channels, DTS:X defines object locations from the listener in polar coordinates. An a/v receiver then dynamically renders sound according to the current speaker configuration. The speaker layout employed by DTS:X is the sum of Dolby Atmos and Auro-3D. It has standard 7.1 channel base layer, a 5 channel height layer above the base layer on the front and side walls, and 3 rows of speakers on the ceiling.

DTS Neural:X is an upmixer that can take non DTS:X content and upmix it to the DTS:X speaker layout. It has replaced the DTS Neo family with improved flexibility.

Advanced Music Optimizer

Compressed music enhancement in Onkyo TX-SR383 is done by Onkyo’s Advanced Music Optimizer. While MP3 or AAC files may sound fine through the headphones of your portable digital player, the limitations of these files can be exposed when played back through a quality home entertainment system. This is because a significant amount of high-frequency bit information is lost during the file-compression process. To counter this, Onkyo has designed the Advanced Music Optimizer to compensate for lost bit information and improve the quality of compressed audio signals. This results in a clearer and more expansive sound. Also included in this technology is a loudness correction feature that further improves the audio character of compressed files.

Advanced Sound Retriever

Compressed music enhancement in Pioneer VSX-1131 is done by Pioneer’s Advanced Sound Retriever. Hear the detail, warmth and clarity, the way the artist intended it, from all of your highly compressed MP3 and WMA files stored on USB, Smartphone and portable media players. By restoring data that tend to get lost in the digital compression process, Pioneers Advanced Sound Retriever Technology enhances audio reproduction all the way upto 20 Khz frequencies.


Onkyo TX-SR383

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Onkyo TX-SR383 can also connect to bluetooth devices via built-in bluetooth adapter. It has 4 HDMI inputs with HDCP 2.2 copy protection.

Front panel has USB input.

Pioneer VSX-1131

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Pioneer VSX-1131 can be connected to internet using ethernet cable or built-in wi-fi adapter. It can also connect to bluetooth devices via built-in bluetooth adapter. The Receiver supports AirPlay. It has 7 HDMI inputs with HDCP 2.2 copy protection. There is a phono input with built-in phono stage for connecting the cartridge output of the turntable directly to the Receiver.

Front panel has HDMI, USB and Mini-Jack inputs.


And in the end let us list the detailed specifications of the receivers side-by-side.

Note: The following table shows only those details which are applicable for both models and excludes the ones that are applicable for only one model. If you want to see a full list of specs for each model please visit their individual pages here - Onkyo TX-SR383 and here - Pioneer VSX-1131.

BASICS Onkyo TX-SR383 Pioneer VSX-1131
TypeA/V ReceiverA/V Receiver
CountryNorth AmericaNorth America
Release Year20182017
AMPLIFIER Onkyo TX-SR383 Pioneer VSX-1131
Front Wide Channel Support
THX™ Certification
Continuous 6 Ω Rated
Certified 4 Ω Performance
Bi-amp Capability
AUDIO Onkyo TX-SR383 Pioneer VSX-1131
Maximum Channel Processing7.17.1
Air Studios Monitor Certification
Dolby Atmos
Dolby Atmos Height Virtualization
Dolby TrueHD
Dolby Digital Plus
Dolby Surround Upmixer
Dolby Pro Logic
Dolby Digital EX
DTS Neural:X
DTS Virtual:X
DTS-HD Master Audio
DTS-HD High Resolution Audio
DTS 96/24
DTS Express
DTS-ES Discrete 6.1, Matrix 6.1
IMAX Enhanced
Auro 3D with Auro-Matic Upmixer
PCM 2-ch/Multi-ch Input 2-ch/Multi-ch Input
Music Playback via USBWMA, MP3, AACMP3, WMA, AAC, Apple Lossless, WAV, FLAC, AIFF, DSD
High Resolution Music Playback via USB and/or Network 64, 88.2, 96, 176.4, 192 kHz/24 bit
Multi-Channel Music File Playback via USB up to 192 kHz/24 bit
DSD via HDMI 2-ch 2-ch/Multi-ch Input
DSD via USB 2-ch Input
DSD to PCM Converter
Jitter Reduction
Dialog Enhancement
Dialogue Lift
Tone Control Front L/R Channels All Channels
Compressed Music Enhancer Advanced Music Optimizer Advanced Sound Retriever
High-resolution Music Enhancer
Audyssey Dynamic EQ
Audyssey Dynamic Volume
Audyssey LFC
Audyssey Sub EQ HT
Audyssey DSX
Direct Mode
Virtual Speakers
CALIBRATION Onkyo TX-SR383 Pioneer VSX-1131
Auto Speaker Calibration System with Mic. AccuEQ MCACC
VIDEO Onkyo TX-SR383 Pioneer VSX-1131
BT.2020 color space
Dolby Vision
HLG (Hybrid Log Gamma)
QMS (Quick Media Switching)
ALLM (Auto Low Latency Mode)
VRR (Variable Refresh Rate)
QFT (Quick Frame transport)
3-D Ready
Video Signal Passthroughup to 4K/60p (4:4:4)up to 4K/60p (4:4:4 24-bit)
4K/60p (4:2:0 36-bit)
4K/24p (4:4:4 36-bit)
Video Signal Upscaling up to 4K
Analog To HDMI Upconversion Component**, Composite
isf Certified Calibration Control
CONNECTIVITY Onkyo TX-SR383 Pioneer VSX-1131
MHL Input
DLNA 1.5
Chromecast Built-In
DTS Play-Fi
Works with Amazon Alexa
Works with SONOS
AirPlay AirPlay
Apple Product Connection iPod, iPhone and iPad (Airplay only)
Remote App iControlAV5 (for iOS and Android)
InstaPrevue Input Source Prevue
Ethernet Switch
Bluetooth SBC, AAC
HDBaseT Compatible
Enhanced ARC
HDCP Version2.22.2
HDMI Input47 (1 front)
HDMI Output12 (simultaneous)
USB Input1 (Front)1 Front
USB DC Out Port
Analog Audio Line Input35 (1 front)
Analog Audio Line Output
Phono Input
Optical In12
Optical Out
Coaxial In/Out1 / 1 /
Composite Video Input22
Composite Video Output1
S-Video Input
S-Video Output
Component Video Input1
Component Video Output
Multi-Channel Input
Analog Pre-Outs0.20.2
XLR Inputs
XLR Pre-outs
Front A/V InputsUSBHDMI, USB, Mini-Jack
Speaker A/B
Headphone Out 6.3 mm 6.3 mm
ZONES Onkyo TX-SR383 Pioneer VSX-1131
Powered Zones 2 2
Zone 2Line Out
+12V Trigger Output0
Remote (IR) Input/Output0 / 00 / 0
MISC Onkyo TX-SR383 Pioneer VSX-1131
On-Screen Display via HDMIIcon-based Graphical User Interface (GUI)
Detachable Power Cord
RADIO Onkyo TX-SR383 Pioneer VSX-1131
Analog Tuner FM/AM FM/AM
Digital Radio
Internet Radio TuneIn
SiriusXM Internet Radio
CONSTRUCTION Onkyo TX-SR383 Pioneer VSX-1131
Solid Aluminum Front
Speaker Terminals79
Large Speaker Terminals29
Color-Coded Speaker Terminals
Transparent High-Grade Speaker Terminals
Gold plated RCA terminals
POWER Onkyo TX-SR383 Pioneer VSX-1131
Power SupplyAC 120 V, 60 HzAC 120 V, 60 Hz
Power Consumption270 W580 W
Standby Power0.2 W0.1 W
GENERAL Onkyo TX-SR383 Pioneer VSX-1131
Dimensions (W x H x D)435 mm x 168 mm x 326.5 mm
17" x 6-1/2" x 13"
435 mm x 173 mm x 370.5 mm
17-1/8" x 6-13/16" x 14-9/16"
Weight8.2 kg (18.1 lb 10 oz)10.0 kg (22 lbs)
Warranty2 Years1 Year Parts & Labor
SPECS Onkyo TX-SR383 Pioneer VSX-1131
Power Output (8 Ω, 20 Hz - 20 kHz, 280 W (0.08% THD)100 W (0.08% THD)
Maximum Effective Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA)155 W (10% THD)175 W (10% THD)
THD0.06% (20 Hz - 20 kHz, 1 Channel Driven, 50 W)0.08% (20 Hz - 20 kHz, half power)
Input Sensitivity and Impedance (Line)200 mV/47 kΩ200 mV/47 kΩ
S/N Ratio (Line, IHF-A)106 dB106 dB
Frequency Response (Analog In)5 Hz - 100 kHz/0 dB, -3 dB (Direct)10 Hz - 100 kHz/+1 dB, -3 dB (Pure Direct)
DSD Sampling Rates via HDMI2.8 MHz2.8 MHz
Video Input Sensitivity/Output Level and Impedance1 Vp-p/75 Ω (Composite)1 Vp-p/75 Ω (Component Y)
0.7 Vp-p/75 Ω (Component PB/CB, PR/CR)
1 Vp-p/75 Ω (Composite)
Bluetooth Version3.04.1 + LE
Bluetooth Frequency2.4 GHz2.4 GHz
USB TerminalVer. 2.0, 5 V, 1 AUSB2.0 (Type A) 5 V, 1 A
FM Frequency87.5 MHz - 107.9 MHz87.5 MHz - 107.9 MHz
AM Frequency530 kHz - 1710 kHz530 kHz - 1710 kHz

* - 480i/576i and 480p/576p only
** - 480i/576i only
*** - no 1080p/24 upconversion
**** - 1080p signal is not converted

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