Onkyo 5.2-Channel A/V Receiver TX-SR373



(519) 746-8030

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.

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. 

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!

Easy Connection Guide Simplifies Setup

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

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

Amplifier Design-
Certified 4 Ohms Performance-
Discrete Output Stage Circuitry
Continuous 6 Ohms Rated-
Non-Phase Shift Amplifier-
THX Certified-
Dynamic Audio Amplification-
H.C.P.S. (High Current Power Supply)-
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
UPC Code
Weight20.5 lbs. (9.3 kg)
Dimensions (W x H x D)20 9/16" x 9 3/4" x 16 15/16" (522 x 247 x 430 mm)
Weight17.6 lbs (8.0 kg)
Dimensions (W x H x D)17 1/8" x 6 5/8" x 12 7/8" (435 x 168 x 326.5 mm)
Standby Power Consumption0.35 W
No-Sound Power Consumption-
Power Consumption210 W
Power SupplyAC 120 V~, 60 Hz
Tuner Section
FM/AM Preset Memory30 stations
AM530 kHz–1,700 kHz
FM87.5 MHz–108 MHz
Tuning Frequency Range
Component Video Frequency Response-
Video1.0 Vp–p ±5% / 75 Ohms (Composite)
Input Sensitivity/Output Level and Impedance-
Amplifier Section
Speaker Impedance6 ohms–16 ohms
Signal-to-Noise Ratio98 dB (Line, IHF-A)
Tone Control±10 dB, 100 Hz (Bass)±10 dB, 10 kHz (Treble)
Frequency Response5 Hz–100 kHz / 0 dB, -3 dB (Direct Mode)
Phono Overload-
Maximum RCA Output Level and Impedance-
Rated RCA Output Level and Impedance-
Input Sensitivity and Impedance200 mV / 47k Ohms (Line)
Damping Factor-
THD+N (Total Harmonic Distortion + Noise)0.06% (20 Hz–20 kHz, 8 Ohms, 1 Channel Driven, 50 W)
Dynamic Power-
All Channels155 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)
Power Output
Warranty2 YEARS
Detachable AC Cord-
Solid Aluminum Front-
Transparent High-Grade Speaker Terminals-
OSD Out-
Auto Speaker Calibration W/Mic.AccuEQ
Smart Grid-Ready-
Hybrid Standby Function-
On Screen Remote Programming-
Pre-Pro/Learning Remote- / -
Integration Access
12V Trigger-
RIHD (Remote Interactive Over HDMI)-
ONKYO-RI System Control-
IR Output-
IR Input-
Bluetooth✓ (Qualcomm aptX)
Wireless Network-
Streaming Audio From USB memory
Hi-Res Streaming Audio Formats-
Streaming Audio From PC / Network-
Spotify Connect Support-
Internet Radio Capable-
Supports Onkyo Remote App-
Google Cast-
FireConnect Multi-room Audio-
Whole House Mode-
Zone 3 Line Out-
Zone 2 Digital to Analog Audio Conversion-
Zone 2 Video Out-
Zone 2 Line Out-
Powered Zone 3-
Powered Zone 2-
Speaker A/+B-
Analog Pre-OutsDual Subwoofer
4K Passthrough
1080p to 4K Upscaling-
Analog To HDMI Upconversion-
HDMI Support for DVD-Audio, SACD, Multichannel PCM
HDMI Support for Deep Color, x.v.Color, LipSync
BT.2020 Support
HDMI Support for 3D, Audio Return Channel and CEC
HDMI Support for High Dynamic Range
HDCP 2.2 Copy-Protection Compatibility
HDMI 4K/60 Hz- Capable HDMI Terminals
HDMI I/O4 / 1
USB Input✓ (Front)
Front-Panel A/V-
Front Panel HDMI-
Component Video I/O-
Composite Video I/O2 / 1
Digital Audio IN (OPT/COAX)1 / 1
Phono Input-
Analog Audio IN3
192K/24 Bit DACs
384K/32 Bit DACs-
Advanced Music Optimizer
Pure Direct Analog Path Mode-
Direct/Pure Mode✓ / -
Phase-Matching Bass Boost-
AccuEQ Room Calibration
THX Processing Mode-
VLSC for Noiseless Audio Processing-
ONKYO GAME Surround Modes-
DTS DecoderDTS-HD Master Audio
Dolby DecoderTrue HD
32-Bit Digital Signal Processing Engine-
Dolby Atmos-
Bi-amp Capability For Front-
Independent Block Construction (Amp/Preprocessor)-
# Channels5.2

leave your review

We believe that service is what separates Gibson's from everywhere else as we offer you professional expert advice backed by only the area's best service to follow. We pride ourselves in the services we provide all of our customers.

We'll never leave you with unanswered questions, and don't forget that we'll always "Treat You Like Family"!