Onkyo TX-SR373 Review and Specs

Onkyo TX-SR373 (European version)

SCORE:
29

Highlights

  • 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
  • HDR10, Dolby Vision, 4K Passthrough
  • Bluetooth
  • USB input

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Onkyo TX-SR373 Overview

Onkyo TX-SR373 was introduced in 2017. It is equipped with 5 channel amplifier and is capable of 5.1 maximum channel processing.

We evaluated the Receiver and gave 29 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
37
VIDEO FEATURES
50
AUDIO FEATURES
17
CONNECTIVITY
18
MULTIZONE
20
MISCELLANEOUS
12
RADIO
28
OVERALL
29

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-SR373.

PROS
DSD via HDMI πŸ‘
HDR10 πŸ‘
Dolby Vision πŸ‘
4K or 8K Video Passthrough πŸ‘
Bluetooth πŸ‘
New HDCP Version πŸ‘
USB Input πŸ‘
Composite Video Inputs πŸ‘
Zones πŸ‘
Analog Tuner πŸ‘
CONS
No Front Wide Channel Support πŸ‘Ž
Few Channel Processing πŸ‘Ž
No Dolby Atmos πŸ‘Ž
No Dolby Atmos Height Virtualization πŸ‘Ž
No DTS:X πŸ‘Ž
No DTS Neural:X πŸ‘Ž
No DTS Virtual:X πŸ‘Ž
No IMAX Enhanced πŸ‘Ž
No Auro 3D with Auro-Matic Upmixer πŸ‘Ž
No DSD via USB πŸ‘Ž
No DTS Dialog Control πŸ‘Ž
No Audyssey Dynamic EQ πŸ‘Ž
No Audyssey Dynamic Volume πŸ‘Ž
No Audyssey LFC πŸ‘Ž
No Audyssey Sub EQ HT πŸ‘Ž
No HDR10+ πŸ‘Ž
No Dynamic HDR πŸ‘Ž
No Auto Low Latency Mode Pass-through πŸ‘Ž
No VRR πŸ‘Ž
No QFT πŸ‘Ž
No 4K or 8K Video Upscaling πŸ‘Ž
No MHL Input πŸ‘Ž
No DLNA 1.5 πŸ‘Ž
No FireConnect πŸ‘Ž
No FlareConnect πŸ‘Ž
No Chromecast Built-In πŸ‘Ž
No DTS Play-Fi 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 Internet Radio 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
No Toroidal Transformer πŸ‘Ž
Old Bluetooth Version πŸ‘Ž

Major Changes from its predecessor

Here we are comparing Onkyo TX-SR373 to its predecessor TX-SR353 and displaying the major changes.

UPGRADES Onkyo TX-SR373 Onkyo TX-SR353
Dolby Vision βœ” βœ–
Analog Tuner βœ” FM/AM with RDS βœ” FM/AM
Bigger Power Supply 220 W 210 W

For more detailed comparison between the models please visit Onkyo TX-SR373 vs Onkyo TX-SR353.

Selected Features

Amplifier

Onkyo TX-SR373 has 5 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.


Advanced Music Optimizer

Compressed music enhancement in Onkyo TX-SR373 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-SR373 comes with AccuEQ room correction system and includes the calibration microphone.


Connectivity

Onkyo TX-SR373 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-SR373.

BASICS
BrandOnkyo
ModelTX-SR373
TypeA/V Receiver
CountryEurope
Release Year2017
AMPLIFIER
Channels5.1
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 Processing5.1
Air Studios Monitor Certificationβœ–
Dolby Atmosβœ–
Dolby Atmos Height Virtualizationβœ–
Dolby TrueHDβœ”
Dolby Digital Plusβœ”
Dolby Surround Upmixerβœ–
Dolby Pro Logicβœ” PLII
Dolby Digital EXβœ–
THX Listening Modesβœ–
DTS:Xβœ–
DTS Neural:Xβœ–
DTS Virtual:Xβœ–
DTS Neoβœ” Neo:6
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 Dialogue 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–
Dynamic HDRβœ–
BT.2020 color spaceβœ”
Dolby Visionβœ”
Hybrid Log Gamma (HLG)βœ–
Quick Media Switching (QMS)βœ–
Auto Low Latency Mode (ALLM)βœ–
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 Audio Return Channel (eARC)βœ–
HDCP Version2.2
HDMI Inputs4
HDMI Outputs1
USB Input1 (Front)
USB DC Out Portβœ–
Analog Audio Line Inputs3
Analog Audio Line Outputsβœ–
Phono Inputβœ–
Optical Inputs1
Optical Outputsβœ–
Coaxial Inputs/Outputs1 / No
Composite Video Inputs2
Composite Video Outputs1
S-Video Inputsβœ–
S-Video Outputsβœ–
Component Video Inputsβœ–
Component Video Outputsβœ–
PC Inβœ–
Multi-Channel Inputβœ–
Analog Pre-Outs0.1
XLR Inputsβœ–
XLR Pre-outsβœ–
Front A/V InputsUSB
Speaker A/Bβœ–
Headphone Outβœ” 6.3 mm
ZONES
Zones1
Whole House Modeβœ–
RS-232 Interfaceβœ–
+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–
Pre-Pro/Learning RemoteNo / No
On Screen Remote Programmingβœ–
Bi-directional Remote Setup via GUIβœ–
RADIO
Analog Tunerβœ” FM/AM with RDS
Presets30
Digital Radioβœ–
Internet Radioβœ–
Pandoraβœ–
Spotifyβœ–
Tidalβœ–
Deezerβœ–
Napsterβœ–
SiriusXM Internet Radioβœ–
CONSTRUCTION
Solid Aluminum Frontβœ–
Speaker Terminals5
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 220-240 V, 50/60 Hz
Independent Power Supplyβœ–
H.C.P.S. (High Current Power Supply)βœ–
Toroidal Transformerβœ–
Power Consumption220 W
Standby Power0.3 W
GENERAL
Dimensions (W x H x D)435 mm x 168 mm x 326.5 mm
17-1/8" x 6-5/8" x 12-13/16"
Weight8.0 kg (17 lb 10 oz)
Warranty2 Years
SPECS
Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC)100 W (0.09% THD)
Rated Power Output (6 Ω, 1 kHz, 1 channel driven, IEC)135 W (1% 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 Impedance 1 Vp-p/75 Ω (Composite)
Bluetooth Version3.0
Bluetooth Frequency2.4 GHz
HDMI TerminalType A (19-pin)
HDMI Output Type5 V, 55 mA
USB Terminal5 V, 0.5 A
FM Frequency87.5 MHz - 108.0 MHz
AM Frequency530 kHz - 1700 kHz

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

Successor

In 2018 Onkyo TX-SR373 was replaced by TX-SR383. Let us now have a look at some important changes that the successor brought.


UPGRADES Onkyo TX-SR383 Onkyo TX-SR373
More Channels 7.2 5.1
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 220 W

DOWNGRADES Onkyo TX-SR383 Onkyo TX-SR373
Analog Tuner βœ” FM/AM βœ” FM/AM with RDS

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

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