Here we are comparing Onkyo TX-NR515 to Onkyo TX-NR509 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-NR515 has 7 channel and the Onkyo TX-NR509 has 5 channel and equally powerful amplifiers.

Let us have a look at some highlights of the models.

We have evaluated both receivers. Onkyo TX-NR515 gets higher overall score in our ranking system which is based on the amplifier specifications, audio and video features, connectivity, multizone capabilities, radio and many other details.

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 4K passthrough, 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...

This section shows those features and specifications which are the reason to choose Onkyo TX-NR515 over Onkyo TX-NR509.

Onkyo TX-NR515 has more channels, more channel processing and bigger power supply. It has bi-amp capability.

	Onkyo TX-NR515	Onkyo TX-NR509
More Channels	7.2	5.1
WRAT (Wide Range Amplifier Technology)	✔	✖
Bi-amp capability	✔	✖
More Channel Processing	7.1	5.1
Dolby Pro Logic	✔ PLIIz	✔ PLIIx
Higher Resolution Music Playback via USB	✔ up to 192 kHz	✔ up to 96 kHz
Video Signal Upscaling	✔ up to 4K/30p (Marvell Qdeo)	✖
Analog To HDMI Upconversion	✔ Component**, Composite	✖
MHL Input	✔ Front HDMI	✖
InstaPrevue Input Source Prevue	✔	✖
More HDMI Inputs	8 (1 front)	4
More HDMI Outputs	2 (simultaneous)	1
USB Input	1 Front (for iPod/iPhone) and 1 Rear	1 Front
Front A/V Inputs	HDMI/MHL, USB, Composite Video	USB, Composite Video, RCA Audio
More Powered Zones	✔ 2	✖
On-Screen Display	✔ Advanced "Home" GUI	✔ Basic Overlay
On Screen Remote Programming	✔	✖
More Speaker Terminals	9	5
More Large Speaker Terminals	7	5
Bigger Power Supply	540 W	410 W
Higher Power Output (6 Ω, 1 kHz, 2 channel driven, FTC)	125 W (0.1% THD)	110 W (0.9% THD)

This section shows those features and specifications which are the reason to choose Onkyo TX-NR509 over Onkyo TX-NR515.

Only Onkyo TX-NR509 supports Napster. It has analog pre-outs.

	Onkyo TX-NR515	Onkyo TX-NR509
More Analog Audio Line Inputs	5	6 (1 front)
More Analog Audio Line Outputs	✖	1
More Composite Video Outputs	1	2
More Component Video Inputs	1	2
More Analog Pre-Outs	0.2	2.1 (Surround Back and Sub)
uport	✖	✔
Digital Radio	✖	✔ DAB/DAB+ Radio via optional UP-DT1 Tuner (sold separately)
Napster	✖	✔

Onkyo TX-NR515 and Onkyo TX-NR509 share common strengths such as DLNA 1.5 support, ethernet connection, wi-fi, internet radio, Pandora and Spotify.

STRENGTHS	Onkyo TX-NR515	Onkyo TX-NR509
DSD via HDMI	✔ 2-ch/Multi-ch Input	✔ 2-ch/Multi-ch Input
Audyssey Dynamic EQ	✔	✔
Audyssey Dynamic Volume	✔	✔
DLNA 1.5	✔	✔
Ethernet	✔	✔
Wi-Fi	✔ via Front USB (optional UWF-1 sold separately)	✔ via Front USB (optional UWF-1 sold separately)
USB Input	1 Front (for iPod/iPhone) and 1 Rear	1 Front
Composite Video Inputs	5 (1 front)	5 (1 front)
Component Video Inputs	1	2
Zones	2	2
Analog Tuner	✔ FM/AM with RDS	✔ FM/AM with RDS
Internet Radio	✔ vTuner	✔ vTuner
Pandora	✔	✔
Spotify	✔	✔

Onkyo TX-NR515 and Onkyo TX-NR509 share common weaknesses such as no Dolby Atmos support, no DTS:X support, no Auro3D support, no HDR10, no Dolby Vision, no ChromeCast, no DTS Play-Fi, no Amazon Alexa, no SONOS, no bluetooth, no phono input, no analog multi-channel input, no Tidal, no Deezer, no SiriusXM and no toroidal transformer.

WEAKNESSES	Onkyo TX-NR515	Onkyo TX-NR509
No Dolby Atmos	✖	✖
No Dolby Atmos Height Virtualization	✖	✖
No DTS:X	✖	✖
No DTS Neural:X	✖	✖
No DTS Virtual:X	✖	✖
No IMAX Enhanced	✖	✖
No Auro 3D with Auro-Matic Upmixer	✖	✖
No DSD via USB	✖	✖
No DTS Dialog Control	✖	✖
No Audyssey LFC	✖	✖
No Audyssey Sub EQ HT	✖	✖
No HDR10	✖	✖
No HDR10+	✖	✖
No Dynamic HDR	✖	✖
No Dolby Vision	✖	✖
No Auto Low Latency Mode Pass-through	✖	✖
No VRR	✖	✖
No QFT	✖	✖
No 4K or 8K Video Passthrough	up to 1080p	up to 1080p
No FireConnect	✖	✖
No FlareConnect	✖	✖
No Chromecast Built-In	✖	✖
No DTS Play-Fi	✖	✖
Does not Work with Amazon Alexa	✖	✖
Does Not Work with SONOS	✖	✖
No Bluetooth	✖	✖
No eARC	✖	✖
No Phono Input	✖	✖
No Multi-Channel Input	✖	✖
No Tidal	✖	✖
No Deezer	✖	✖
No SiriusXM Internet Radio	✖	✖
No Toroidal Transformer	✖	✖

Amplifier

Onkyo TX-NR515 has 7 channel and Onkyo TX-NR509 has 5 channel amplifiers. They both deliver 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)

Video Features

Both receivers support 1080p passthrough. Onkyo TX-NR515 can do 4K upscaling up to 30p.

WRAT

Onkyo TX-NR515 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.

Advanced Music Optimizer

Compressed music enhancement in Onkyo TX-NR515 and Onkyo TX-NR509 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.

Connectivity

Onkyo TX-NR515

Onkyo TX-NR515 can be connected to internet using ethernet cable or wirelessly via Front USB (optional UWF-1 sold separately). It has 8 HDMI inputs with HDCP 2.2 copy protection.

Front panel has HDMI/MHL, USB and Composite Video inputs.

Onkyo TX-NR509

Onkyo TX-NR509 can be connected to internet using ethernet cable or wirelessly via Front USB (optional UWF-1 sold separately). It has 4 HDMI inputs. There are 2.1 (Surround Back and Sub) channel analog pre-outs for external amplification.

Front panel has USB, Composite Video and RCA Audio inputs.

And in the end let us list the detailed specifications of the receivers side-by-side.

Note: The following table shows only those details which are applicable for both models and excludes the ones that are applicable for only one model. If you want to see a full list of specs for each model please visit their individual pages here - Onkyo TX-NR515 and here - Onkyo TX-NR509.

BASICS	Onkyo TX-NR515	Onkyo TX-NR509
Brand	Onkyo	Onkyo
Model	TX-NR515	TX-NR509
Type	A/V Receiver	A/V Receiver
Country	Others	Others
Release Year	2012	2011

AMPLIFIER	Onkyo TX-NR515	Onkyo TX-NR509
Channels	7.2	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	Onkyo TX-NR515	Onkyo TX-NR509
Digital Processing Crossover Network	✖	✖
Digital Signal Processing (DSP) Engine	Advanced 32-Bit Processing DSP Chip	Advanced 32-Bit Processing DSP Chip
DAC	Burr-Brown	Burr-Brown
Maximum Channel Processing	7.1	5.1
Air Studios Monitor Certification	✖	✖
Dolby Atmos	✖	✖
Dolby Atmos Height Virtualization	✖	✖
Dolby TrueHD	✔	✔
Dolby Digital Plus	✔	✔
Dolby Surround Upmixer	✖	✖
Dolby Pro Logic	✔ PLIIz	✔ PLIIx
Dolby Digital EX	✔	✔
Surround EX	✖	✖
DTS:X	✖	✖
DTS Neural:X	✖	✖
DTS Virtual:X	✖	✖
DTS Neo	✔ Neo:6	✔ Neo:6
DTS-HD Master Audio	✔	✔
DTS-HD High Resolution Audio	✔	✔
DTS 96/24	✔	✔
DTS Express	✔	✔
DTS-ES	✔ Discrete 6.1, Matrix 6.1	✔ Discrete 6.1, Matrix 6.1
IMAX Enhanced	✖	✖
Auro 3D with Auro-Matic Upmixer	✖	✖
PCM	✔ 2-ch/Multi-ch Input	✔ 2-ch/Multi-ch Input
Music Playback via USB	FLAC, WAV, WMA, WMA Lossless, Ogg, MP3, LPCM, AAC	FLAC, WAV, WMA, WMA Lossless, Ogg, MP3, LPCM, AAC
High Resolution Music Playback via USB and/or Network	✔ up to 192 kHz	✔ up to 96 kHz
High Resolution Audio Formats via USB	FLAC, WAV, WMA Lossless, LPCM, AAC	FLAC, WAV, WMA Lossless, LPCM, AAC
Multi-Channel Music File Playback via USB	✖	✖
Gapless Playback	✖	✖
DSD via HDMI	✔ 2-ch/Multi-ch Input	✔ 2-ch/Multi-ch Input
DSD via USB	✖	✖
DSD to PCM Converter	✖	✖
USB DAC	✖	✖
Jitter Reduction	✔ PLL (Phase Locked Loop) Jitter-Cleaning Circuit Technology for S/PDIF Audio	✔ PLL (Phase Locked Loop) Jitter-Cleaning Circuit Technology for S/PDIF Audio
DTS Dialogue Control	✖	✖
Dialog Enhancement	✖	✖
Dialog Level Adjustment	✖	✖
Dialog Normalization	✖	✖
Dialogue Lift	✖	✖
Tone Control	✔ Front L/R Channels	✔ Front L/R Channels
Compressed Music Enhancer	✔ Advanced Music Optimizer	✔ Advanced Music Optimizer
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	✖	✖
Direct Mode	✔	✔
Pure Audio Mode	✔	✔
Pure Direct Analog Path Mode	✖	✖
Virtual Speakers	✔ T-D (Theater-Dimensional)	✔ T-D (Theater-Dimensional)
Independent Dual Subwoofer Output	✖	✖

CALIBRATION	Onkyo TX-NR515	Onkyo TX-NR509
Auto Speaker Calibration System with Mic.	✔ Audyssey 2EQ	✔ Audyssey 2EQ
Audyssey App Support	✖	✖

VIDEO	Onkyo TX-NR515	Onkyo TX-NR509
HDR10	✖	✖
HDR10+	✖	✖
Dynamic HDR	✖	✖
BT.2020 color space	✖	✖
Dolby Vision	✖	✖
Hybrid Log Gamma (HLG)	✖	✖
Quick Media Switching (QMS)	✖	✖
Auto Low Latency Mode (ALLM)	✖	✖
Variable Refresh Rate (VRR)	✖	✖
Quick Frame Transport (QFT)	✖	✖
3-D Ready	✔	✔
Video Signal Passthrough	up to 1080p	up to 1080p
Video Signal Upscaling	✔ up to 4K/30p (Marvell Qdeo)	✖
Analog To HDMI Upconversion	✔ Component**, Composite	✖
Component Video Upscaling	✖	✖
Analog to Analog Video conversion	✖	✖
isf Certified Calibration Control	✖	✖

CONNECTIVITY	Onkyo TX-NR515	Onkyo TX-NR509
MHL Input	✔ Front HDMI	✖
DLNA 1.5	✔	✔
FireConnect	✖	✖
FlareConnect	✖	✖
Chromecast Built-In	✖	✖
DTS Play-Fi	✖	✖
Works with Amazon Alexa	✖	✖
Works with SONOS	✖	✖
AirPlay	✖	✖
Apple Product Connection	✔ iPod and iPhone via front USB	✔ iPod and iPhone via USB or optional UP-A1 Dock (sold separately)
Remote App	✔ iPod touch/iPhone and Android-Powered Devices	✔ iPod touch/iPhone
InstaPrevue Input Source Prevue	✔	✖
Ethernet	✔	✔
Ethernet Switch	✖	✖
Wi-Fi	✔ via Front USB (optional UWF-1 sold separately)	✔ via Front USB (optional UWF-1 sold separately)
Bluetooth	✖	✖
HDBaseT Compatible	✖	✖
Enhanced Audio Return Channel (eARC)	✖	✖
HDMI Inputs	8 (1 front)	4
HDMI Outputs	2 (simultaneous)	1
USB Input	1 Front (for iPod/iPhone) and 1 Rear	1 Front
USB DC Out Port	✖	✖
Analog Audio Line Inputs	5	6 (1 front)
Analog Audio Line Outputs	✖	1
Phono Input	✖	✖
Optical Inputs	2	2
Optical Outputs	✖	✖
Coaxial Inputs/Outputs	2 / No	2 / No
Composite Video Inputs	5 (1 front)	5 (1 front)
Composite Video Outputs	1	2
S-Video Inputs	✖	✖
S-Video Outputs	✖	✖
Component Video Inputs	1	2
Component Video Outputs	1	1
PC In	✖	✖
Multi-Channel Input	✖	✖
Analog Pre-Outs	0.2	2.1 (Surround Back and Sub)
XLR Inputs	✖	✖
XLR Pre-outs	✖	✖
Front A/V Inputs	HDMI/MHL, USB, Composite Video	USB, Composite Video, RCA Audio
Speaker A/B	✖	✖
Headphone Out	✔ 6.3 mm	✔ 6.3 mm

ZONES	Onkyo TX-NR515	Onkyo TX-NR509
Zones	2	2
Powered Zones	✔ 2	✖
Zone 2 Outs	RCA Line Out	RCA Line Out
Whole House Mode	✖	✖
RS-232 Interface	✖	✖
+12V Trigger Output	✖	✖
Remote (IR) Input/Output	✖	✖

MISC	Onkyo TX-NR515	Onkyo TX-NR509
On-Screen Display	✔ Advanced "Home" GUI	✔ Basic Overlay
Detachable Power Cord	✖	✖
uport	✖	✔
ONKYO-RI System Control	✔	✔
RIHD (Remote Interactive Over HDMI)	✔	✔
Pre-Pro/Learning Remote	No / ✔	No / ✔
On Screen Remote Programming	✔	✖
Bi-directional Remote Setup via GUI	✖	✖
Activity Based Remote	✖	✖
Smart Grid-Ready	✖	✖

RADIO	Onkyo TX-NR515	Onkyo TX-NR509
Analog Tuner	✔ FM/AM with RDS	✔ FM/AM with RDS
Presets	40	40
Digital Radio	✖	✔ DAB/DAB+ Radio via optional UP-DT1 Tuner (sold separately)
Internet Radio	✔ vTuner	✔ vTuner
Pandora	✔	✔
Spotify	✔	✔
Tidal	✖	✖
Deezer	✖	✖
Napster	✖	✔
SiriusXM Internet Radio	✖	✖

CONSTRUCTION	Onkyo TX-NR515	Onkyo TX-NR509
Solid Aluminum Front	✖	✖
Speaker Terminals	9	5
Large Speaker Terminals	7	5
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-NR515	Onkyo TX-NR509
Power Supply	AC 220-240 V, 50/60 Hz	AC 220-240 V, 50/60 Hz
Independent Power Supply	✖	✖
H.C.P.S. (High Current Power Supply)	✔ Massive High Power Transformer	✔ Massive High Power Transformer
Toroidal Transformer	✖	✖
Power Consumption	540 W	410 W
No Sound Power	65 W (230 V)/70 W (240 V)	45 W (230 V)/50 W (240 V)
Standby Power	0.2 W	0.3 W

GENERAL	Onkyo TX-NR515	Onkyo TX-NR509
Dimensions (W x H x D)	435 mm x 173.5 mm x 328 mm 17-1/8" x 6-13/16" x 12-15/16"	435 mm x 173.5 mm x 328 mm 17-1/8" x 6-13/16" x 12-15/16"
Weight	9.6 kg (21.2 lbs)	9.3 kg (20.5 lbs)
Warranty	2 Years	2 Years

SPECS	Onkyo TX-NR515	Onkyo TX-NR509
Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC)	80 W (0.7% THD)	80 W (0.7% THD)
Power Output (6 Ω, 1 kHz, 2 channel driven, FTC)	125 W (0.1% THD)	110 W (0.9% THD)
Maximum Effective Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA or IEC)	160 W	160 W
Rated Power Output (6 Ω, 1 kHz, 1 channel driven, IEC)	130 W (1% THD)	130 W (1% THD)
Dynamic Power per Channel (3 Ω, Front)	180 W	180 W
Dynamic Power per Channel (4 Ω, Front)	160 W	160 W
Dynamic Power per Channel (8 Ω, Front)	100 W	100 W
THD	0.08% (20 Hz - 20 kHz, half power)	0.08% (20 Hz - 20 kHz, Half power)
Damping Factor	60 (Front, 1 kHz, 8 Ω)	60 (Front, 1 kHz, 8 Ω)
Input Sensitivity and Impedance (Line)	200 mV/47 kΩ (Line)	200 mV/47 kΩ (Line)
Rated Lineout Level and Impedance	200 mV/2.2 kΩ	200 mV/2.2 kΩ (REC OUT)
Maximum Lineout Level and Impedance	2 V/2.2 kΩ	2 V/2.2 kΩ (REC OUT)
S/N Ratio (Line, IHF-A)	100 dB	100 dB
Frequency Response (Analog In)	5 Hz - 100 kHz/+1 dB, -3 dB (DSP bypass)	20 Hz - 50 kHz/+1 dB, -3 dB (DSP bypass)
DSD Sampling Rates via HDMI	2.8 MHz	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)	1 Vp-p/75 Ω (Component Y) 0.7 Vp-p/75 Ω (Component PB/CB, PR/CR) 1 Vp-p/75 Ω (Composite)
Video Frequency Response	5 Hz - 100 MHz/+0 dB, -3 dB (Component)	5 Hz - 100 MHz/+0 dB, -3 dB (Component)
Ethernet Standard	100BASE-TX	100BASE-TX
FM Frequency	87.5 MHz - 108.0 MHz	87.5 MHz - 108.0 MHz
AM Frequency	522/530 kHz - 1611/1710 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