- 5.2 channels
- 5.1 channel processing
- 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
- Dolby Atmos, DTS:X capable
- HDR10, Dolby Vision, 4K Upscaling, 4K Passthrough
- 7.1 channels
- 7.1 channel processing
- 65 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
- Dolby Atmos capable
- 4K Passthrough
Disclosure: We earn money from the affiliate links to products associated with content in this article.
Here we are comparing Onkyo TX-SR393 to Onkyo TX-SR444 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. The Onkyo TX-SR393 has 5 channel and the Onkyo TX-SR444 has 7 channel amplifiers with Onkyo TX-SR393's being more powerful.
Advantage of Onkyo TX-SR393
This section shows those features and specifications which are the reason to choose Onkyo TX-SR393 over Onkyo TX-SR444.
Onkyo TX-SR393 has more power per channel, higher DAC specs, bigger power supply, higher signal to noise ratio and higher bluetooth standard. It supports DTS:X. It has DTS Dialog Control. In video department only Onkyo TX-SR393 supports HDR10, Dolby Vision and Hybrid Log Gamma.
|Onkyo TX-SR393||vs||Onkyo TX-SR444|
|Certified 4 Ω Performance||vs|
|Higher DAC Specs||384 kHz/32 Bit||vs||192 kHz/24 Bit|
|Dolby Atmos Height Virtualization||vs|
|DTS Dialog Control||vs|
|BT.2020 color space||vs|
|Video Signal Upscaling||1080p to 4K||vs|
|Zone 2 Outs||Zone B Line Out||vs|
|Bigger Power Supply||445 W||vs||4.3 A|
|Higher Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC)||80 W (0.08% THD)||vs||65 W (0.7% THD)|
|Higher Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA)||155 W (10% THD)||vs||120 W|
|Higher S/N Ratio (Line, IHF-A)||109 db||vs||100 dB|
|Newer Bluetooth Version||4․2||vs||2․1 + EDR|
Advantage of Onkyo TX-SR444
This section shows those features and specifications which are the reason to choose Onkyo TX-SR444 over Onkyo TX-SR393.
Onkyo TX-SR444 has more channels, more channel processing and more advanced room correction system.
|Onkyo TX-SR393||vs||Onkyo TX-SR444|
|More Channel Processing||5.1||vs||7.1|
|DSD via HDMI||2-ch||vs||2-ch/Multi-ch Input|
|Jitter Reduction||vs||PLL (Phase Locked Loop) Jitter-Cleaning Circuit Technology for S/PDIF Audio|
|Phase-Matching Bass Boost||vs||for Deep Bass and Clear Mid-Range|
|More Advanced Auto Speaker Calibration System||AccuEQ||vs||AccuEQ Advance|
|Analog To HDMI Upconversion||vs||Component**, Composite|
|USB DC Out Port||vs||5 V, 1 A|
|More Analog Audio Line Inputs||3||vs||7 (1 front)|
|More Optical Inputs||1||vs||2|
|More Composite Video Inputs||vs||3 (1 front)|
|More Component Video Inputs||vs||2|
|Front A/V Inputs||vs||Composite Video, RCA Audio|
|Speaker A/B||vs||Zone B|
|More Powered Zones||vs||2|
|ONKYO-RI System Control||vs|
|RIHD (Remote Interactive Over HDMI)||vs|
|More Speaker Terminals||5||vs||9|
|Independent Power Supply||vs||2|
|H.C.P.S. (High Current Power Supply)||vs||Massive High Power Transformer|
|Wider AM Frequency Range||530 kHz - 1710 kHz||vs||522/530 kHz - 1611/1710 kHz|
Common Strengths and Weaknesses
Here we list common strengths and weaknesses of both receivers.
|DSD via HDMI|
|Auto Speaker Calibration System with Mic.|
|New HDCP Version|
|4K or 8K Video Passthrough|
|No Front Wide Channel Support|
|No IMAX Enhanced|
|No Auro 3D with Auro-Matic Upmixer|
|No Chromecast Built-In|
|Does not Work with Amazon Alexa|
|Few HDMI Inputs|
|Few HDMI Outputs|
|Few 8K Inputs|
|No USB Input|
|No Phono Input|
|No Analog Pre-Outs|
|Onkyo TX-SR393||Onkyo TX-SR444|
5 channel Amplifier: Onkyo TX-SR393 features 5 channel power amplifier. It is rated at 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) and is able to drive 4 ohm speakers.
7 channel Amplifier: Onkyo TX-SR444 features 7 channel power amplifier. It is rated at 65 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven).
- WRAT (Wide Range Amp Technology): Onkyo TX-SR444 features Onkyo’s Wide Range Amp Technology (WRAT) circuit layout that prevents phase shifting by pushing the roll-off point higher than the listening-level frequency. Amplifying sound without phase shift creates an uncommonly well-focused and realistic audio image. If phase shift occurs and signal timing is not accurate, then neither is the resulting audio image.
Onkyo TX-SR393's and Onkyo TX-SR444's amplifiers can be assigned for different speaker configurations.
- Dolby Atmos Configurations: The following speaker configurations are supported for Dolby Atmos:
- Onkyo TX-SR393: 3.1.2 with internal amplifier.
- Onkyo TX-SR444: 5.1.2 with internal amplifier.
- DTS:X Configurations: The following speaker configurations are supported for DTS:X:
- Onkyo TX-SR393: The speaker configurations for DTS:X are the same as for Dolby Atmos - 3.1.2 with internal amplifier.
- Onkyo TX-SR444: Not supported.
- Configurations without height channels: There are also other speaker configurations available which do not include height channels:
- Onkyo TX-SR393: 5.2 with internal amplifier.
- Onkyo TX-SR444: 5.1, 7.1 with internal amplifier.
Onkyo TX-SR393 and Onkyo TX-SR444 support Dolby Atmos. It is a cinematic audio format in which sounds exist as individual entities, called audio objects. In Dolby Atmos, any sound 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. 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.
- Dolby Surround Upmixer: Both models support Dolby Surround Upmixer. 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.
- Dolby Atmos Height Virtualization: Onkyo TX-SR393 supports Dolby Atmos Height Virtualization which is a digital signal processing solution that leverages Dolby's deep understanding of human audio perception to create the sensation of overhead sound from the listener-level speakers.
Onkyo TX-SR393 supports DTS:X. 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: Onkyo TX-SR393 supports DTS Neural:X which is an advanced 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.
- DTS Virtual:X: Onkyo TX-SR393 supports DTS Virtual:X which bridges the gap between DTS:X codec and the reality of so many consumers' homes, allowing you to enjoy multi-dimensional sound regardless of room size, layout, or speaker configuration. If you have a limited speaker setup you will miss a full immersive potential of your entertainment system. DTS Virtual:X adds height and surround audio effect to your system without adding height speakers. It works with multiple configurations and delivers immersive sound experience out of 5.1 or even 2.1 speaker layouts.
- DTS Dialog Control: Onkyo TX-SR393 supports DTS Dialog Control. This function adjusts the dialog levels during playback of the DTS:X stream. It allows you to separately increase the dialog levels in contrast with the background sound and hear dialog easily even under noisy circumstances.
- Compressed Music Enhancer: Onkyo TX-SR393 and Onkyo TX-SR444 feature Compressed Music Enhancer which enhances the quality of the music files with lossy compression.
- Advanced Music Optimizer: Compressed music enhancement in Onkyo TX-SR393 and Onkyo TX-SR444 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.
Onkyo TX-SR393 comes with AccuEQ and Onkyo TX-SR444 comes with AccuEQ Advance room correction system.
- AccuEQ: First, AccuEQ detects the presence of speakers and evaluates the impedance of each. Next, it pinpoints their distance relative to the main listening position using the mic and sets suitable sound-pressure levels. Then it selects the optimal crossover frequency so that deeper bass rolls smoothly off to the subwoofer. Finally, AccuEQ performs frequency response equalization based on room-acoustic and speaker data collected via microphone. The sound-field is now tailored around the listening position, resulting in a more immersive and realistic in-film experience.
Onkyo TX-SR393 and Onkyo TX-SR444 come with 4 HDMI inputs. It has 1 output.
- 4K/60Hz Passthrough: On both receivers all inputs pass up to 4K/60p (RGB/YCbCr4:4:4) video signal.
- 4K Upscaling on Onkyo TX-SR393: It can upscale 1080p to 4K from HDMI sources.
- Analog To HDMI Upconversion: Onkyo TX-SR444 supports analog to HDMI Upconversion, so you can input your analog video sources and output them digitally via HDMI. This means that you will need only one HDMI cable to connect to your TV.
- BT.2020 Color Space: BT.2020 or Rec. 2020 is a color standard which delivers a wider color gamut compared to Rec. 709. It covers approximately 75% of the total visual spectrum while the Rec. 709 covers only 35% (available on Onkyo TX-SR393 only).
- HDCP 2.2 Copy Protection: Both receivers are HDCP 2.2 compliant which is a requirement for 4K/HDR copy-protected content transmission.
- 3D Ready: Both receivers are able to pass 3D video through HDMI.
HDR (High Dynamic Range)
Onkyo TX-SR393 supports HDR10, Dolby Vision and Hybrid Log-Gamma.
Onkyo TX-SR444 does not support HDR.
High dynamic range video has greater dynamic range than standard dynamic range (SDR) video with brighter whites and deeper blacks. The result is greater contrast and more details in dark and bright areas, better color and depth.
- HDR10: HDR10 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 10-bit color which corresponds to 1024 shades of the primary RGB colors. It is technically limited to a maximum of 10,000 nits peak brightness, however common HDR10 contents are mastered with peak brightness from 1,000 to 4,000 nits.
- Dolby Vision: Dolby Vision is a set of technologies developed by Dolby Laboratories for high dynamic range (HDR) video. It covers content creation, distribution, and playback. Like HDR10+, it includes dynamic metadata that are used to adjust and optimize each frame of the HDR video to the consumer display's capabilities in a way specified by the content creator. Dolby Vision allows for a maximum resolution of 8K up to 12-bit color depth, maximum peak brightness of 10,000 nits and a color gamut up to Rec. 2020. It uses Dolby's proprietary dynamic metadata defined in SMPTE ST 2094-10.
- Hybrid Log-Gamma (HLG): The Hybrid Log-Gamma (HLG) is a transfer function developed mainly for HDR live video feed and over-the-air broadcasts. It is an HDR format that uses BT.2020 color primaries and a bitdepth of 10-bit. It is backward compatible with the transfer function of SDR and is designed to be better-suited for television broadcasting, where the metadata required for other HDR formats is not backward compatible with non-HDR displays. HLG defines a non-linear optical-electro transfer function, in which the lower half of the signal values use a gamma curve and the upper half of the signal values use a logarithmic curve.
Inputs and Outputs
- Analog Line Inputs: There are 3 pair of line inputs on Onkyo TX-SR393 and 7 pair of line inputs on Onkyo TX-SR444 for connecting sources with analog outputs.
- Digital Inputs: 1 optical input and 1 coaxial input are available on Onkyo TX-SR393 and 2 optical inputs and 1 coaxial input are available on Onkyo TX-SR444 for digital audio connections.
- Headphone Output: There is a 6.3 mm (1/4") headphone output jack on the front panel of each receiver.
- Onkyo TX-SR393
Inputs: 4 Outputs: 1
8K Inputs: 0.
- Onkyo TX-SR444
Inputs: 4 Outputs: 1
8K Inputs: 0.
- Composite Video: Connect you VCR, Laserdisc player and other old video equipment with composite video cables.
- Onkyo TX-SR393
Inputs: 0 Outputs: 0.
- Onkyo TX-SR444
Inputs: 3 Outputs: 0.
- Component Video: Component video connection gives you the higher quality video compared to the composite video connection. So in case your old DVD player and other equipment do not have an HDMI output but have Component video output use this connection over the composite one. resolution on Component video connectors.
- Onkyo TX-SR444 supports up to 480i/576i resolution on Component video connectors.
- Onkyo TX-SR393
Inputs: 0 Outputs: 0.
- Onkyo TX-SR444
Inputs: 2 Outputs: 0.
Front A/V Inputs
- Onkyo TX-SR393: None
- Onkyo TX-SR444: Composite Video, RCA Audio
And in the end let us list all the available specifications of the receivers side-by-side.
|BASICS||Onkyo TX-SR393||Onkyo TX-SR444|
|Type||A/V Receiver||A/V Receiver|
|AMPLIFIER||Onkyo TX-SR393||Onkyo TX-SR444|
|Front Wide Channel Support|
|Dynamic Audio Amplification|
|Non-Phase Shift Amplifier|
|WRAT (Wide Range Amplifier Technology)|
|VLSC (Vector Linear Shaping Circuitry)|
|Optimum Gain Volume Circuitry|
|Continuous 6 Ω Rated|
|Certified 4 Ω Performance|
|Discrete Output Stage Circuitry|
|3-Stage Inverted Darlington Circuitry|
|Independent Block Construction (Amp/Preprocessor)|
|BTL (Bridged Transless or Bridging)|
|AUDIO||Onkyo TX-SR393||Onkyo TX-SR444|
|Digital Signal Processing (DSP) Engine||32-bit Digital Signal Processing Engines||Advanced 32-bit DSP Chip|
|DAC Specs||384 kHz/32 Bit||192 kHz/24 Bit|
|Maximum Channel Processing||5.1||7.1|
|Air Studios Monitor Certification|
|Dolby Atmos Height Virtualization|
|Dolby Atmos Music|
|Dolby Digital Plus|
|Dolby Surround Upmixer|
|Dolby Pro Logic|
|Dolby Digital EX|
|THX Listening Modes|
|DTS-HD Master Audio|
|DTS-HD High Resolution Audio|
|Auro 3D with Auro-Matic Upmixer|
|PCM||2-ch/Multi-ch Input||2-ch/Multi-ch Input|
|Music Playback via USB|
|High Resolution Music Playback via USB and/or Network|
|Multi-Channel Music File Playback via USB|
|DSD via HDMI||2-ch||2-ch/Multi-ch Input|
|DSD via USB|
|DSD to PCM Converter|
|Jitter Reduction||PLL (Phase Locked Loop) Jitter-Cleaning Circuit Technology for S/PDIF Audio|
|DTS Dialog Control|
|Dialog Level Adjustment|
|Tone Control||Front L/R Channels||Front L/R Channels|
|Compressed Music Enhancer||Advanced Music Optimizer||Advanced Music Optimizer (bluetooth included)|
|High-resolution Music Enhancer|
|THX Processing Mode|
|Audyssey Dynamic EQ|
|Audyssey Dynamic Volume|
|Audyssey Sub EQ HT|
|Phase-Matching Bass Boost||for Deep Bass and Clear Mid-Range|
|Pure Audio Mode|
|Pure Direct Analog Path Mode|
|Virtual Speakers||T-D (Theater-Dimensional)||T-D (Theater-Dimensional)|
|Independent Subwoofer Outputs|
|CALIBRATION||Onkyo TX-SR393||Onkyo TX-SR444|
|Auto Speaker Calibration System with Mic.||AccuEQ||AccuEQ Advance|
|VIDEO||Onkyo TX-SR393||Onkyo TX-SR444|
|HLG (Hybrid Log Gamma)|
|BT.2020 color space|
|QMS (Quick Media Switching)|
|ALLM (Auto Low Latency Mode)|
|VRR (Variable Refresh Rate)|
|QFT (Quick Frame transport)|
|Video Signal Passthrough||up to 4K/60p (RGB/YCbCr4:4:4)||up to 4K/60p (RGB/YCbCr4:4:4/YCbCr4:2:2, 24 bit)|
|Video Signal Upscaling||1080p to 4K|
|Analog To HDMI Upconversion||Component**, Composite|
|Component Video Upscaling|
|Analog to Analog Video conversion|
|Component Video Maximum Resolution||480i/576i|
|isf Certified Calibration Control|
|CONNECTIVITY||Onkyo TX-SR393||Onkyo TX-SR444|
|Works with Amazon Alexa|
|Works with SONOS|
|Apple Product Connection||iPod, iPhone via RI Dock|
|InstaPrevue Input Source Prevue|
|USB DC Out Port||5 V, 1 A|
|Analog Audio Line Input||3||7 (1 front)|
|Analog Audio Line Output|
|Composite Video Input||3 (1 front)|
|Composite Video Output|
|Component Video Input||2|
|Component Video Output|
|Front A/V Inputs||Composite Video, RCA Audio|
|Speaker A/B||Zone B|
|Headphone Out||6.3 mm (1/4")||6.3 mm (1/4")|
|ZONES||Onkyo TX-SR393||Onkyo TX-SR444|
|Zone 2 Outs||Zone B Line Out|
|Whole House Mode|
|+12V Trigger Output||0||0|
|Remote (IR) Input/Output||0 / 0||0 / 0|
|MISC||Onkyo TX-SR393||Onkyo TX-SR444|
|On-Screen Display||Graphical Overlaid On-Screen Display (OSD) via HDMI with Quick Set-Up|
|Detachable Power Cord|
|ONKYO-RI System Control|
|RIHD (Remote Interactive Over HDMI)|
|On Screen Remote Programming|
|Bi-directional Remote Setup via GUI|
|RADIO||Onkyo TX-SR393||Onkyo TX-SR444|
|SiriusXM Internet Radio|
|CONSTRUCTION||Onkyo TX-SR393||Onkyo TX-SR444|
|Solid Aluminum Front|
|Large Speaker Terminals||2||2|
|Color-Coded Speaker Terminals|
|Transparent High-Grade Speaker Terminals|
|18mm Pitch High Grade Pre-outs|
|19mm-Pitch Audio Inputs|
|Gold plated RCA terminals|
|POWER||Onkyo TX-SR393||Onkyo TX-SR444|
|Power Supply||AC 120 V, 60 Hz||AC 120 V, 60 Hz|
|Independent Power Supply||2|
|H.C.P.S. (High Current Power Supply)||Massive High Power Transformer|
|Power Consumption||445 W||4.3 A|
|No Sound Power||55 W|
|Standby Power||0.1 W||0.15 W|
|GENERAL||Onkyo TX-SR393||Onkyo TX-SR444|
|Dimensions (W x H x D)||435 mm x 160 mm x 328 mm|
17-1/8" x 6-5/16" x 12-15/16"
|435 mm x 160 mm x 328 mm|
17-1/8" x 6-5/16" x 12-15/16"
|Dimensions of Package (W x H x D)||525 mm x 240 mm x 405 mm|
20-11/16" x 9-7/16" x 15-15/16"
|Weight||8.2 kg (18.1 lb 10 oz)||7.8 kg (17.2 lbs)|
|Weight of Package||10.5 kg (23.1 lbs)|
|Warranty||2 Years||2 Years|
|SPECS||Onkyo TX-SR393||Onkyo TX-SR444|
|Power Output (8 Ω, 20 Hz - 20 kHz, 2||80 W (0.08% THD)||65 W (0.7% THD)|
|Power Output (6 Ω, 1 kHz, 1 channel driven, FTC)||115 W (0.9% THD)|
|Maximum Effective Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA)||155 W (10% THD)||120 W|
|Rated Power Output (6 Ω, 1 kHz, 1 channel driven, IEC)||100 W (1% THD)|
|Dynamic Power per Channel (3 Ω, Front)||160 W|
|Dynamic Power per Channel (4 Ω, Front)||125 W|
|Dynamic Power per Channel (8 Ω, Front)||85 W|
|THD||0.08% (20 Hz - 20 kHz, Half power)||0.08% (20 Hz - 20 kHz, half power)|
|Damping Factor||40 (Front, 1 kHz, 8 Ω)|
|Input Sensitivity and Impedance (Line)||200 mV/47 kΩ (1 kHz, 100 W/8 Ω)||200 mV/47 kΩ (LINE, 1 kHz 100 W/8 Ω)|
|Rated Headphone Power Output||80 mW (32 Ω, 1 kHz, 10% THD)|
|S/N Ratio (Line, IHF-A)||109 db||100 dB|
|Frequency Response (Analog In)||10 Hz - 100 kHz/+1 dB, -3 dB (Direct)||10 Hz - 100 kHz/+1 dB, -3 dB (Direct mode)|
|DSD Sampling Rates via HDMI||2.8 MHz|
|Video Input Sensitivity/Output Level and Impedance||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 Version||4․2||2․1 + EDR|
|Bluetooth Frequency||2.4 GHz||2.4 GHz|
|USB Terminal||5 V, 1 A|
|FM Frequency||87.5 MHz - 107.9 MHz||87.5 MHz - 107.9 MHz|
|FM 50 dB Quiet Sensitivity (IHF, 1 kHz, 100% MOD.)||Mono: 1.0 µV (11.2 dBf)|
|AM Frequency||530 kHz - 1710 kHz||522/530 kHz - 1611/1710 kHz|
* - 480i/576i and 480p/576p only
** - 480i/576i only
*** - no 1080p/24 upconversion
**** - 1080p signal is not converted