Onkyo TX-SR343 (USA version)

•   Overview
•   Pros and Cons
•   Predecessor
•   Audio Section
•   Video Section
•   Multi-zone Playback
•   Inputs and Outputs
•   Specifications
•   Successor

Onkyo TX-SR343 was introduced in 2015. It is equipped with 5 channel amplifier with 65 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) power per channel and is capable of 5.1 maximum channel processing. It passes 4K/60Hz video signal.

We evaluated the a/v receiver and gave 64 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.

In this section we present pros and cons of Onkyo TX-SR343.

Here we are comparing Onkyo TX-SR343 to its predecessor TX-SR333 and displaying the major changes.

UPGRADES	Onkyo TX-SR343	vs	Onkyo TX-SR333
DTS-ES		vs
Phase-Matching Bass Boost	for Deep Bass and Clear Mid-Range	vs
Analog To HDMI Upconversion	Component**, Composite	vs
USB DC Out Port	5 V, 1 A	vs
More Optical Outputs		vs
More Component Video Inputs	2	vs	1
Smart Grid-Ready		vs
More Large Speaker Terminals	2	vs	0
Bigger Power Supply	3.8 A	vs	3.2 A
Lower THD	0.08% (20 Hz - 20 kHz, half power)	vs	0.7% (20 Hz - 20 kHz, Half power)

DOWNGRADES	Onkyo TX-SR343	vs	Onkyo TX-SR333
AirPlay		vs	AirPlay via optional Onkyo RI Dock DS-A5 (sold separately)
InstaPrevue Input Source Prevue		vs
Less HDMI Inputs	4	vs	6
USB Input		vs	1 (Rear)
Less RCA Line Outputs		vs	1
Less Coaxial Inputs/Outputs	1	vs	2
Less Composite Video Inputs	3 (1 front)	vs	4 (1 front)
Less Composite Video Outputs		vs	1
Less Component Video Outputs		vs	1
Less Zones	1	vs	2
Color-Coded Speaker Terminals		vs
Lower Power Output (6 Ω, 1 kHz, 1 channel driven, IEC)	100 W (1% THD)	vs	110 W (0.9% THD)
Lower Damping Factor	40 (Front, 1 kHz, 8 Ω)	vs	60 (Front, 1 kHz, 8 Ω)

For more detailed comparison between the models please visit Onkyo TX-SR343 vs Onkyo TX-SR333.

5 channel Amplifier

Onkyo TX-SR343 features 5 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-SR343 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.

Speaker Configurations

Onkyo TX-SR343's 5 channel amplifier can be assigned for different speaker configurations.

• Configurations: Available configurations are:
5.1 with internal amplifier.

Sound Processing

• Advanced Music Optimizer: Compressed music enhancement in Onkyo TX-SR343 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.

HDMI

Onkyo TX-SR343 features 4 HDMI inputs. It has 1 output.

• 4K/60Hz Passthrough: All inputs pass up to 4K/60p (RGB/YCbCr4:4:4/YCbCr4:2:2, 24 bit) video signal.
• Analog To HDMI Upconversion: The a/v receiver supports video upconversion, so you can connect your analog Component and Composite video sources and Onkyo TX-SR343 will output them via HDMI. This means that you will need only one HDMI cable to connect to your TV.
• HDCP 2.2 Copy Protection: All inputs and outputs are HDCP 2.2 compliant which is a requirement for 4K/HDR copy-protected content transmission.
• 3D Ready: Onkyo TX-SR343 is able to pass 3D video through HDMI.

Audio

• Analog Line Inputs: There are 7 line inputs for analog audio connection.
• Digital Inputs and Outputs: 0 optical input, 2 optical outputs and 1 coaxial input are available for digital audio connection.
• Headphone Output: There is a 6.3 mm (1/4") headphone output jack on the front panel.

Video

• HDMI:
Inputs: 4   Outputs: 1
8K Inputs: 0
• Composite Video: Connect you VCR, Laserdisc player and other old video equipment with composite video cables.
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. Onkyo TX-SR343 supports up to 480i/576i resolution on Component video connectors.
Inputs: 2   Outputs: 0

Here we list all the available features and specifications of Onkyo TX-SR343.

BASICS
Brand	Onkyo
Model	TX-SR343
Type	A/V Receiver
Country	USA
Release Year	2015

AMPLIFIER
Channels	5.1
WRAT (Wide Range Amplifier Technology)
VLSC (Vector Linear Shaping Circuitry)
Optimum Gain Volume Circuitry
THX™ Certification
Continuous 6 Ω Rated
Certified 4 Ω Performance
Discrete Output Stage Circuitry
3-Stage Inverted Darlington Circuitry
PUSH-PULL Design
Independent Block Construction (Amp/Preprocessor)
Bi-amp Capability
BTL (Bridged Transless or Bridging)

AUDIO
Digital Signal Processing (DSP) Engine	Advanced 32-bit DSP Chip
DAC	Burr-Brown
DAC Specs	192 kHz/24 Bit
Maximum Channel Processing	5.1
Air Studios Monitor Certification
Dolby Atmos
Dolby Atmos Height Virtualization
Dolby Atmos Music
Dolby TrueHD
Dolby Digital Plus
Dolby Surround Upmixer
Dolby Pro Logic	PLII
Dolby Digital EX
Surround EX
DTS:X
DTS Neural:X
DTS Virtual:X
DTS Neo	Neo:6
DTS-HD Master Audio
DTS-HD High Resolution Audio
DTS 96/24
DTS Express
DTS-ES
IMAX Enhanced
Auro 3D with Auro-Matic Upmixer
PCM	2-ch/Multi-ch Input
DSD via HDMI	2-ch/Multi-ch Input
DSD to PCM Converter
USB DAC
Jitter Reduction	PLL (Phase Locked Loop) Jitter-Cleaning Circuit Technology for S/PDIF Audio
DTS Dialog Control
Dialog Enhancement
Dialog Level Adjustment
Dialog Normalization
Dialogue Lift
Tone Control	Front L/R Channels
Compressed Music Enhancer	Advanced Music Optimizer (bluetooth included)
High-resolution Music Enhancer
THX Processing Mode
Audyssey Dynamic EQ
Audyssey Dynamic Volume
Audyssey LFC
Audyssey Sub EQ HT
Audyssey DSX
Phase-Matching Bass Boost	for Deep Bass and Clear Mid-Range
Direct Mode
Pure Audio Mode
Pure Direct Analog Path Mode
Virtual Speakers	T-D (Theater-Dimensional)
Independent Subwoofer Outputs

CALIBRATION
Auto Speaker Calibration System with Mic.

VIDEO
Enhanced ARC
HDCP Version	2.2
HDR10
HDR10+
Dynamic HDR
Dolby Vision
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)
3-D Ready
Video Signal Passthrough	up to 4K/60p (RGB/YCbCr4:4:4/YCbCr4:2:2, 24 bit)
Video Signal Upscaling
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
MHL Input
DLNA 1.5
FireConnect
FlareConnect
Chromecast Built-In
DTS Play-Fi
Works with Amazon Alexa
Works with SONOS
AirPlay
Apple Product Connection	iPod, iPhone via RI Dock
Remote App
InstaPrevue Input Source Prevue
Ethernet
Ethernet Switch
Wi-Fi
Bluetooth
HDBaseT Compatible
HDMI Inputs	4
HDMI Outputs	1
8K Inputs
USB Input
USB DC Out Port	5 V, 1 A
RCA Line Input	7 (1 front)
RCA Line Output
XLR Line Inputs
Phono Input
Optical Inputs	2
Optical Outputs
Coaxial Inputs	1
Composite Video Input	3 (1 front)
Composite Video Output
S-Video Input
S-Video Output
Component Video Input	2
Component Video Output
PC In
Multi-Channel Input
RCA Pre-Outs	0.1
XLR Pre-outs
Front A/V Inputs	Composite Video, RCA Audio
Speaker A/B
Headphone Out	6.3 mm (1/4")

ZONES
Zones	1
Whole House Mode
RS-232C Interface
+12V Trigger Output	0
Remote (IR) Input/Output	0 / 0

MISC
On-Screen Display	Graphical Overlaid On-Screen Display (OSD) via HDMI with Quick Set-Up
Detachable Power Cord
uport
ONKYO-RI System Control
RIHD (Remote Interactive Over HDMI)
Pre-Pro/Learning Remote	/
On Screen Remote Programming
Bi-directional Remote Setup via GUI
Smart Grid-Ready

RADIO
Analog Tuner	FM/AM
Presets	40
Digital Radio
Internet Radio
Pandora
Spotify
Tidal
Deezer
Napster
SiriusXM Internet Radio

CONSTRUCTION
Solid Aluminum Front
Speaker Terminals	5
Large Speaker Terminals	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
Power Supply	AC 120 V, 60 Hz
Independent Power Supply	2
H.C.P.S. (High Current Power Supply)	Massive High Power Transformer
Toroidal Transformer
Power Consumption	3.8 A
No Sound Power	45 W
Standby Power	0.15 W

GENERAL
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"
Weight	7.8 kg (17.2 lbs)
Warranty	2 Years

SPECS
Power Output (8 Ω, 20 Hz - 20 kHz, 2	65 W (0.7% THD)
Power Output (6 Ω, 1 kHz, 1 channel driven, FTC)	110 W (0.9% THD)
Maximum Effective Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA)	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)
Damping Factor	40 (Front, 1 kHz, 8 Ω)
Input Sensitivity and Impedance (Line)	200 mV/47 kΩ (LINE, 1 kHz 100 W/8 Ω)
S/N Ratio (Line, IHF-A)	100 dB
Frequency Response (Analog In)	10 Hz - 100 kHz/+1 dB, -3 dB (Direct mode)
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)
Ethernet Standard
Bluetooth Version	2․1 + EDR
Bluetooth Frequency	2.4 GHz
FM Frequency	87.5 MHz - 107.9 MHz
AM Frequency	522/530 kHz - 1611/1710 kHz

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

In 2016 Onkyo TX-SR343 was replaced by TX-SR353. Let us now have a look at some important changes that the successor brought.

UPGRADES	Onkyo TX-SR353	vs	Onkyo TX-SR343
More Advanced Auto Speaker Calibration System	AccuEQ	vs
HDR10		vs
BT.2020 color space		vs
USB Input	1 (Front)	vs
More Composite Video Outputs	1	vs
Bigger Power Supply	210 W	vs	3.8 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, FTC)	140 W (1.0% THD)	vs	110 W (0.9% THD)
Lower THD	0.06% (20 Hz - 20 kHz, 8 Ω, 1 Channel Driven, 50 W)	vs	0.08% (20 Hz - 20 kHz, half power)

DOWNGRADES	Onkyo TX-SR353	vs	Onkyo TX-SR343
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
Analog To HDMI Upconversion		vs	Component**, Composite
USB DC Out Port		vs	5 V, 1 A
Less RCA Line Inputs	3	vs	7 (1 front)
Less Optical Outputs		vs
Less Composite Video Inputs	2	vs	3 (1 front)
Less Component Video Inputs		vs	2
ONKYO-RI System Control		vs
RIHD (Remote Interactive Over HDMI)		vs
Pre-Pro/Learning Remote	/	vs	/
Less Presets	30	vs	40
Independent Power Supply		vs	2
H.C.P.S. (High Current Power Supply)		vs	Massive High Power Transformer
Lower S/N Ratio (Line, IHF-A)	98 dB	vs	100 dB
Narrower AM Frequency Range	530 kHz - 1700 kHz	vs	522/530 kHz - 1611/1710 kHz

For more detailed comparison between the models please visit Onkyo TX-SR343 vs Onkyo TX-SR353.