Onkyo TX-SR383 Review and Specs
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Onkyo TX-SR383 (North American version)

SCORE:
74

Highlights

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

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Onkyo TX-SR383 Overview

Onkyo TX-SR383 was introduced in 2018. It is equipped with 7 channel amplifier and is capable of 7.1 maximum channel processing.

We evaluated the Receiver and gave 74 overall score out of 100. Our ranking system is based on the amplifier specifications, audio and video features, connectivity, multizone capabilities, radio and many other details.

AMPLIFIER
68
VIDEO FEATURES
87
AUDIO FEATURES
84
CONNECTIVITY
63
MULTIZONE
77
MISCELLANEOUS
47
RADIO
59
OVERALL
74

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 video signal passthrough and 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...

Pros and Cons

In this section we present pros and cons of Onkyo TX-SR383.

PROS
Dolby Atmos πŸ‘
Dolby TrueHD πŸ‘
Dolby Digital Plus πŸ‘
Dolby Surround Upmixer πŸ‘
DTS:X πŸ‘
DTS Neural:X πŸ‘
DTS-HD Master Audio πŸ‘
DTS-HD High Resolution Audio πŸ‘
DTS 96/24 πŸ‘
DTS Express πŸ‘
DTS-ES πŸ‘
DSD via HDMI πŸ‘
Compressed Music Enhancer πŸ‘
Auto Speaker Calibration System with Mic. πŸ‘
HDR10 πŸ‘
BT.2020 color space πŸ‘
Dolby Vision πŸ‘
3-D Ready πŸ‘
4K or 8K Video Passthrough πŸ‘
Bluetooth πŸ‘
New HDCP Version πŸ‘
USB Input πŸ‘
Composite Video Inputs πŸ‘
Composite Video Outputs πŸ‘
Zones πŸ‘
Analog Tuner πŸ‘
CONS
No Front Wide Channel Support πŸ‘Ž
Not Certified 4 Ω Performance πŸ‘Ž
No Bi-amp Capability πŸ‘Ž
No Dolby Atmos Height Virtualization πŸ‘Ž
No DTS Virtual:X πŸ‘Ž
No IMAX Enhanced πŸ‘Ž
No Auro 3D with Auro-Matic Upmixer πŸ‘Ž
No High Resolution Music Playback via USB and/or Network πŸ‘Ž
No DSD via USB πŸ‘Ž
No DTS Dialog Control πŸ‘Ž
No High-resolution Music Enhancer πŸ‘Ž
No HDR10+ πŸ‘Ž
No Hybrid Log Gamma (HLG) πŸ‘Ž
No 4K or 8K Video Upscaling πŸ‘Ž
No DLNA 1.5 πŸ‘Ž
No Chromecast Built-In πŸ‘Ž
Does not Work with Amazon Alexa πŸ‘Ž
Does Not Work with SONOS πŸ‘Ž
No Ethernet πŸ‘Ž
No Wi-Fi πŸ‘Ž
No eARC πŸ‘Ž
Few HDMI Inputs πŸ‘Ž
Few HDMI Outputs πŸ‘Ž
Few Analog Audio Line Inputs πŸ‘Ž
No Phono Input πŸ‘Ž
No Component Video Inputs πŸ‘Ž
No Multi-Channel Input πŸ‘Ž
No Analog Pre-Outs πŸ‘Ž
No Pandora πŸ‘Ž
No Spotify πŸ‘Ž
No Tidal πŸ‘Ž
No Deezer πŸ‘Ž
No Napster πŸ‘Ž
No SiriusXM Internet Radio πŸ‘Ž
Old Bluetooth Version πŸ‘Ž

Major Changes from its predecessor

Here we are comparing Onkyo TX-SR383 to its predecessor TX-SR373 and displaying the major changes.

UPGRADES Onkyo TX-SR383 Onkyo TX-SR373
More Channels 7.2 5.2
More Channel Processing 7.1 5.1
Dolby Atmos βœ” βœ–
Dolby Surround Upmixer βœ” βœ–
DTS:X βœ” βœ–
DTS Neural:X βœ” βœ–
More Zones 2 1
Bigger Power Supply 270 W 210 W

For more detailed comparison between the models please visit Onkyo TX-SR383 vs Onkyo TX-SR373.

Selected Features

Amplifier

Onkyo TX-SR383 has 7 channel amplifier and delivers 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven).


Video Features

The Receiver has 4K passthrough up to 60p. It can bypass HDR10, Dolby Vision.


HDR10

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 supports Dolby Atmos with its Dolby Surround upmixer. It 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 Audioβ„’ 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 supports DTS:X with its Neural:X upmixer. It 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 a new 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.


Room Correction

Onkyo TX-SR383 comes with[y] AccuEQ room correction system and includes the calibration microphone.


Connectivity

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

Front panel has USB input.

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Detailed Specifications

Here we list all the available features and specifications of Onkyo TX-SR383.

BASICS
BrandOnkyo
ModelTX-SR383
TypeA/V Receiver
CountryNorth America
Release Year2018
AMPLIFIER
Channels7.2
Front Wide Channel Supportβœ–
Dynamic Audio Amplificationβœ–
Non-Phase Shift Amplifierβœ–
VLSC (Vector Linear Shaping Circuitry)βœ–
Optimum Gain Volume Circuitryβœ–
THXβ„’ Certificationβœ–
Continuous 6 Ω Ratedβœ”
Certified 4 Ω Performanceβœ–
Discrete Output Stage Circuitryβœ”
Independent Block Construction (Amp/Preprocessor)βœ–
Bi-amp Capabilityβœ–
BTL (Bridged Transless or Bridging)βœ–
AUDIO
Maximum Channel Processing7.1
Air Studios Monitor Certificationβœ–
Dolby Atmosβœ”
Dolby Atmos Height Virtualizationβœ–
Dolby TrueHDβœ”
Dolby Digital Plusβœ”
Dolby Surround Upmixerβœ”
Dolby Pro Logicβœ–
Dolby Digital EXβœ–
THX Listening Modesβœ–
DTS:Xβœ”
DTS Neural:Xβœ”
DTS Virtual:Xβœ–
DTS Neoβœ–
DTS-HD Master Audioβœ”
DTS-HD High Resolution Audioβœ”
DTS 96/24βœ”
DTS Expressβœ”
DTS-ESβœ”
IMAX Enhancedβœ–
Auro 3D with Auro-Matic Upmixerβœ–
PCMβœ” 2-ch/Multi-ch Input
Music Playback via USBWMA, MP3, AAC
High Resolution Music Playback via USB and/or Networkβœ–
Multi-Channel Music File Playback via USBβœ–
DSD via HDMIβœ” 2-ch
DSD via USBβœ–
DSD to PCM Converterβœ–
USB DACβœ–
Jitter Reductionβœ–
DTS Dialog Controlβœ–
Dialog Enhancementβœ–
Dialog Normalizationβœ–
Dialogue Liftβœ–
Tone Controlβœ” Front L/R Channels
Compressed Music Enhancerβœ” Advanced Music Optimizer
High-resolution Music Enhancerβœ–
THX Processing Modeβœ–
Audyssey Dynamic EQβœ–
Audyssey Dynamic Volumeβœ–
Audyssey LFCβœ–
Audyssey Sub EQ HTβœ–
Audyssey DSXβœ–
Phase-Matching Bass Boostβœ–
Direct Modeβœ”
Pure Audio Modeβœ–
Pure Direct Analog Path Modeβœ–
Virtual Speakersβœ–
CALIBRATION
Auto Speaker Calibration System with Mic.βœ” AccuEQ
VIDEO
HDR10βœ”
HDR10+βœ–
BT.2020 color spaceβœ”
Dolby Visionβœ”
Hybrid Log Gamma (HLG)βœ–
Quick Media Switching (QMS)βœ–
Auto Low Latency Mode Pass-throughβœ–
Variable Refresh Rate (VRR)βœ–
Quick Frame Transport (QFT)βœ–
3-D Readyβœ”
Video Signal Passthroughup to 4K/60p (4:4:4)
Video Signal Upscalingβœ–
Analog To HDMI Upconversionβœ–
isf Certified Calibration Controlβœ–
CONNECTIVITY
MHL Inputβœ–
DLNA 1.5βœ–
FireConnectβœ–
FlareConnectβœ–
Chromecast Built-Inβœ–
DTS Play-Fiβœ–
Works with Amazon Alexaβœ–
Works with SONOSβœ–
AirPlayβœ–
Apple Product Connectionβœ–
Remote Appβœ–
InstaPrevue Input Source Prevueβœ–
Ethernetβœ–
Ethernet Switchβœ–
Wi-Fiβœ–
Bluetoothβœ” SBC, AAC
HDBaseT Compatibleβœ–
Enhanced ARCβœ–
HDCP Version2.2
HDMI Input4
HDMI Output1
USB Input1 (Front)
USB DC Out Portβœ–
Analog Audio Line Input3
Analog Audio Line Outputβœ–
Phono Inputβœ–
Optical In1
Optical Outβœ–
Coaxial In/Out1 / βœ–
Composite Video Input2
Composite Video Output1
S-Video Inputβœ–
S-Video Outputβœ–
Component Video Inputβœ–
Component Video Outputβœ–
PC Inβœ–
Multi-Channel Inputβœ–
Analog Pre-Outs0.2
XLR Inputsβœ–
XLR Pre-outsβœ–
Front A/V InputsUSB
Speaker A/Bβœ–
Headphone Outβœ” 6.3 mm
ZONES
Zones2
Powered Zonesβœ” 2
Zone 2βœ–
Whole House Modeβœ–
RS-232βœ–
+12V Trigger Output0
Remote (IR) Input/Output0 / 0
MISC
On-Screen Displayβœ” via HDMI
Detachable Power Cordβœ–
uportβœ–
ONKYO-RI System Controlβœ–
RIHD (Remote Interactive Over HDMI)βœ–
RADIO
Analog Tunerβœ” FM/AM
Presets30
Digital Radioβœ–
Internet Radioβœ–
Pandoraβœ–
Spotifyβœ–
Tidalβœ–
Deezerβœ–
Napsterβœ–
SiriusXM Internet Radioβœ–
CONSTRUCTION
Solid Aluminum Frontβœ–
Speaker Terminals7
Large Speaker Terminals2
Color-Coded Speaker Terminalsβœ–
Transparent High-Grade Speaker Terminalsβœ–
18mm Pitch High Grade Pre-outsβœ–
19mm-Pitch Audio Inputsβœ–
Gold plated RCA terminalsβœ–
POWER
Power SupplyAC 120 V, 60 Hz
Independent Power Supplyβœ–
H.C.P.S. (High Current Power Supply)βœ–
Toroidal Transformerβœ–
Power Consumption270 W
Standby Power0.2 W
GENERAL
Dimensions (W x H x D)435 mm x 168 mm x 326.5 mm
17" x 6-1/2" x 13"
Weight8.2 kg (18.1 lb 10 oz)
Warranty2 Years
SPECS
Power Output (8 Ω, 20 Hz - 20 kHz, 280 W (0.08% THD)
Maximum Effective Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA)155 W (10% THD)
THD0.06% (20 Hz - 20 kHz, 1 Channel Driven, 50 W)
Input Sensitivity and Impedance (Line)200 mV/47 kΩ
S/N Ratio (Line, IHF-A)106 dB
Frequency Response (Analog In)5 Hz - 100 kHz/0 dB, -3 dB (Direct)
DSD Sampling Rates via HDMI2.8 MHz
Video Input Sensitivity/Output Level and Impedance1 Vp-p/75 Ω (Composite)
Bluetooth Version3.0
Bluetooth Frequency2.4 GHz
USB TerminalVer. 2.0, 5 V, 1 A
FM Frequency87.5 MHz - 107.9 MHz
AM Frequency530 kHz - 1710 kHz

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

Successor

In 2019 Onkyo TX-SR383 was replaced by TX-SR393. Let us now have a look at some important changes that the successor brought.


UPGRADES Onkyo TX-SR393 Onkyo TX-SR383
Certified 4 Ω Performance βœ” βœ–
Dolby Atmos Height Virtualization βœ” βœ–
DTS Virtual:X βœ” βœ–
DTS Dialog Control βœ” βœ–
HLG βœ” βœ–
Video Signal Upscaling βœ” 1080p to 4K βœ–
Bigger Power Supply 445 W 270 W
Newer Bluetooth Version 4.2 3.0

DOWNGRADES Onkyo TX-SR393 Onkyo TX-SR383
Less Channels 5.2 7.2
Less Channel Processing 5.1 7.1
DSD via HDMI βœ” 2-ch βœ” 2-ch
USB Input βœ– 1 (Front)
Less Composite Video Inputs βœ– 2
Less Composite Video Outputs βœ– 1

For more detailed comparison between the models please visit Onkyo TX-SR393 vs Onkyo TX-SR383.

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