TX-SR373
Step Up to Real Surround Sound
Pay for features you need and none that you don’t with the TX-SR373, a future-ready AV hub that focuses on dynamic reproduction of the most popular multichannel soundtracks, including DTS-HD Master Audio™ and Dolby® TrueHD, with surround calibration included. Discrete high-current amps love music: use Bluetooth® wireless technology with Qualcomm® aptX™ audio to stream any music playing on your phone, tablet, or laptop with no loss in original quality.
Perfect Movie Soundtracks At Studio Resolution
The TX-SR373 decodes Dolby® TrueHD and DTS-HD Master Audio™, the most popular lossless multichannel soundtrack formats common to Blu-ray Disc™. Experience authentic movie sound as the director intended.
HDMI® Connects You to the Future
Connect your players with just one cable linking to the TV for clean AV unit installation. HDMI terminals pass the latest video formats to your display, including those supporting 4K/60 Hz, HDR, BT.2020, and HDCP 2.2. There's also an Audio Return Channel (ARC) for amplifying TV broadcasts.
Add Thrills to Music, Movies, Gaming, and TV Programs
Discrete analog amps (not an all-in-one integrated circuit)
deliver high instantaneous current to the speakers for dynamic
audio reproduction. Controlled power is the cornerstone of
Onkyo's amplification philosophy.
This gives the TX-SR373 155 W/Ch (6 Ohms, 1 kHz, 10% THD, 1 Channel Driven) 80 W/Ch (8 Ohms, 20 Hz-20 kHz, 0.08% THD, 2 Channels Driven, FTC).
Enjoy Music Via USB Input
Connect a compatible USB memory device filled with MP3, WMA, or AAC audio files to enjoy clear and powerful reproduction of your music. Quality D/A conversion and a selection of DSP listening programs further enhance sound to suit different kinds of music.
Dual Subwoofer Output
New 2nd subwoofer output allows for more bass for your favorite movies, shows and music. Both subwoofers can be run simultaneously for an effect that will really bring any sound to life!
Bluetooth™ Wireless Technology Featuring Qualcomm® aptX™ Audio
Bluetooth® wireless technology mirrors whatever's playing
on your mobile device, laptop, or PC on the home theater.
Devices* supporting Qualcomm® aptX™ codec deliver virtually
lossless low-latency playback, while original Advanced Music
Optimizer mode enriches any compressed audio for a more
satisfying musical experience.
*Streaming device not included
Easy Connection Guide Simplifies Set-Up
Connections to speakers and external devices are clearly
labeled and illustrated on the rear panel. The connection
diagram is readable upside down to make things easy when
you're leaning over the top of the receiver.
Room Calibration Made Easy
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AccuEQ measures and corrects speaker distances, output levels, crossover frequencies, and frequency response from one quick and easy listening position to ensure clear and balanced surround-sound.
LEARN MORE
Copyright 2017 Onkyo USA Corporation. All rights reserved.
Onkyo features and specifications subject to change without notice. Availability of Internet and third party services depends on region. Some services may require a paid subscription and firmware update.Availability of third-party services advertised here is accurate at the time of publication, but may be subject to change without notice.
| Amplifier | |
| # Channels | 5.2 |
| Power Watts/Ch (8 Ohms 20-20kHz, 2 Channels Driven, FTC) | 80 Watts, 0.08% THD |
| Power Watts/Ch (6 Ohms 1kHz, 1 Channel Driven, FTC) | 155 Watts, 10% THD |
| Dynamic Audio Amplification | - |
| H.C.P.S. (High Current Power Supply) | - |
| Non-Phase Shift Amplifier | - |
| THX Certified | - |
| Continuous 6 Ohms Rated | - |
| Certified 4 Ohms Performance | - |
| Discrete Output Stage Circuitry | ✓ |
| Amplifier Design | - |
| Independent Block Construction (Amp/Preprocessor) | - |
| Bi-amp Capability For Front | - |
| Processing | |
| Dolby Atmos | - |
| 32-Bit Digital Signal Processing Engine | - |
| Dolby Decoder | True HD |
| DTS:X | - |
| DTS Decoder | DTS-HD Master Audio |
| ONKYO GAME Surround Modes | - |
| VLSC for Noiseless Audio Processing | - |
| THX Processing Mode | - |
| CinemaFILTER | - |
| AccuEQ Room Calibration | ✓ |
| Phase-Matching Bass Boost | - |
| Direct/Pure Mode | ✓ / - |
| Pure Direct Analog Path Mode | - |
| Advanced Music Optimizer | ✓ |
| 384K/32 Bit DACs | - |
| 192K/24 Bit DACs | ✓ |
| Connectivity | |
| Analog Audio IN | 3 |
| Phono Input | - |
| Digital Audio IN (OPT/COAX) | 1 / 1 |
| Composite Video I/O | 2 / 1 |
| Component Video I/O | - |
| Front Panel HDMI | - |
| Front-Panel A/V | - |
| USB Input | ✓ (Front) |
| HDMI I/O | 4 / 1 |
| HDMI 4K/60 Hz- Capable HDMI Terminals | ✓ |
| HDCP 2.2 Copy-Protection Compatibility | ✓ |
| HDMI Support for High Dynamic Range | ✓ |
| HDMI Support for 3D, Audio Return Channel and CEC | ✓ |
| BT.2020 Support | ✓ |
| HDMI Support for Deep Color, x.v.Color, LipSync | ✓ |
| HDMI Support for DVD-Audio, SACD, Multichannel PCM | ✓ |
| Analog To HDMI Upconversion | - |
| 1080p to 4K Upscaling | - |
| 4K Passthrough | ✓ |
| Analog Pre-Outs | Dual Subwoofer |
| Speaker A/+B | - |
| Powered Zone 2 | - |
| Powered Zone 3 | - |
| Zone 2 Line Out | - |
| Zone 2 Video Out | - |
| Zone 2 Digital to Analog Audio Conversion | - |
| Zone 3 Line Out | - |
| Whole House Mode | - |
| FireConnect Multi-room Audio | - |
| Airplay | - |
| Google Cast | - |
| Supports Onkyo Remote App | - |
| Internet Radio Capable | - |
| Spotify Connect Support | - |
| Tidal | - |
| Streaming Audio From PC / Network | - |
| Hi-Res Streaming Audio Formats | - |
| Streaming Audio From USB memory | ✓ |
| Wireless Network | - |
| Bluetooth | ✓ (Qualcomm aptX) |
| Integration Access | |
| RS-232 | - |
| IR Input | - |
| IR Output | - |
| Ethernet | - |
| ONKYO-RI System Control | - |
| RIHD (Remote Interactive Over HDMI) | - |
| 12V Trigger | - |
| Miscellaneous | |
| Pre-Pro/Learning Remote | - / - |
| On Screen Remote Programming | - |
| Hybrid Standby Function | - |
| Smart Grid-Ready | - |
| Auto Speaker Calibration W/Mic. | AccuEQ |
| OSD Out | - |
| Solid Aluminum Front | - |
| Transparent High-Grade Speaker Terminals | - |
| Detachable AC Cord | - |
| Warranty | 2 YEARS |
| Amplifier Section | |
| Power Output | |
| All Channels | 80 W/Ch (8 Ohms, 20 Hz–20 kHz, 0.08% THD, 2 Channels Driven, FTC) 155 W/Ch (6 Ohms, 1 kHz, 10% THD, 1 Channel Driven) |
| Dynamic Power | - |
| THD+N (Total Harmonic Distortion + Noise) | 0.06% (20 Hz–20 kHz, 8 Ohms, 1 Channel Driven, 50 W) |
| Damping Factor | - |
| Input Sensitivity and Impedance | 200 mV / 47k Ohms (Line) |
| Rated RCA Output Level and Impedance | - |
| Maximum RCA Output Level and Impedance | - |
| Phono Overload | - |
| Frequency Response | 5 Hz–100 kHz / 0 dB, -3 dB (Direct Mode) |
| Tone Control | ±10 dB, 100 Hz (Bass) ±10 dB, 10 kHz (Treble) |
| Signal-to-Noise Ratio | 98 dB (Line, IHF-A) |
| Speaker Impedance | 6 ohms–16 ohms |
| Video Section | |
| Input Sensitivity/Output Level and Impedance | - |
| Video | 1.0 Vp–p ±5% / 75 Ohms (Composite) |
| Component Video Frequency Response | - |
| Tuner Section | |
| Tuning Frequency Range | |
| FM | 87.5 MHz–108 MHz |
| AM | 530 kHz–1,700 kHz |
| FM/AM Preset Memory | 30 stations |
| General | |
| Power Supply | AC 120 V~, 60 Hz |
| Power Consumption | 210 W |
| No-Sound Power Consumption | - |
| Standby Power Consumption | 0.35 W |
| Dimensions (W x H x D) | 17 1/8" x 6 5/8" x 12 7/8" (435 x 168 x 326.5 mm) |
| Weight | 17.6 lbs (8.0 kg) |
| Carton | |
| Dimensions (W x H x D) | 20 9/16" x 9 3/4" x 16 15/16" (522 x 247 x 430 mm) |
| Weight | 20.5 lbs. (9.3 kg) |
| UPC Code | |
| (B) | 889951000976 |
Owner's Documentation & Software
Product Manuals
The help you need for your TX-SR373.
Product Sheets
Learn about the feature packed TX-SR373.