Onkyo TX-NR525 vs Onkyo TX-NR515

GENERAL	Onkyo TX-NR525	Onkyo TX-NR515
Brand	Onkyo	Onkyo
Model	TX-NR525	TX-NR515
Type	A/V Receiver	A/V Receiver
Country	Europe and Australia	Europe and Australia
Release Year	2013	2012
Predecessor	Onkyo TX-NR515	Onkyo TX-NR509
Successor	Onkyo TX-NR535	Onkyo TX-NR525

AMPLIFIER	Onkyo TX-NR525	Onkyo TX-NR515
Channels	5.2	7.2
Power Output	80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)	80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
Front Wide Channel Support
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 FEATURES	Onkyo TX-NR525	Onkyo TX-NR515
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
DAC Specs	192 kHz/24 Bit	192 kHz/24 Bit
Maximum Channel Processing	5.1	7.1
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	PLIIz
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
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, Apple Lossless, WMA, WMA Lossless, Ogg, MP3, DSD, AAC, LPCM, Dolby TruHD	FLAC, WAV, WMA, WMA Lossless, Ogg, MP3, LPCM, AAC
High Resolution Music Playback via USB and/or Network	up to 192 kHz	up to 192 kHz
High Resolution Audio Formats via USB	FLAC, WAV, WMA Lossless, Apple Lossless, DSD, AAC, LPCM	FLAC, WAV, WMA Lossless, LPCM, AAC
Gapless Playback
DSD via HDMI	2-ch/Multi-ch Input	2-ch/Multi-ch Input
DSD via USB	2-ch Input
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 Subwoofer Outputs

CALIBRATION	Onkyo TX-NR525	Onkyo TX-NR515
Auto Speaker Calibration System with Mic.	Audyssey MultEQ	Audyssey 2EQ
Audyssey App Support

VIDEO FEATURES	Onkyo TX-NR525	Onkyo TX-NR515
HDR10
HDR10+
Dynamic HDR
BT.2020 color space
Dolby Vision
HLG (Hybrid Log Gamma)
HDBaseT Compatible
Enhanced Audio Return Channel (eARC)
HDCP Version	2.2	2.2
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/30p	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
Component Video Maximum Resolution		1080p
isf Certified Calibration Control

CONNECTIVITY	Onkyo TX-NR525	Onkyo TX-NR515
Wi-Fi	via Front USB (optional UWF-1 sold separately)	via Front USB (optional UWF-1 sold separately)
Bluetooth	via Front USB (optional UBT-1 adapter sold separately)
Works with Amazon Alexa
Chromecast Built-In
Works with SonoS
DTS Play-Fi
MHL Input		Front HDMI
DLNA 1.5
AirPlay
Apple Product Connection	iPod and iPhone via front USB	iPod and iPhone via front USB
Remote App	iPod touch/iPhone and Android-Powered Devices	iPod touch/iPhone and Android-Powered Devices
InstaPrevue Input Source Prevue

TERMINALS	Onkyo TX-NR525	Onkyo TX-NR515
HDMI Inputs	6	8 (1 front)
HDMI Outputs	1	2 (simultaneous)
8K Inputs
USB Input	1 Front (for iPod/iPhone) and 1 Rear	1 Front (for iPod/iPhone) and 1 Rear
USB DC Out Port
Optical Inputs	1	2
Optical Outputs
Coaxial Inputs	2	2
RCA Line Inputs	6 (1 front)	5
RCA Line Outputs
XLR Line Inputs
Phono Input
Multi-Channel Input
RCA Pre-Outs	0.2	0.2
XLR Pre-outs
Composite Video Inputs	5 (1 front)	5 (1 front)
Composite Video Outputs	1	1
S-Video Inputs
S-Video Outputs
Component Video Inputs	2	1
Component Video Outputs	1	1
Ethernet
Ethernet Switch
PC In
Front A/V Inputs	L/R Audio, Composite, USB	HDMI/MHL, USB, Composite Video
Speaker A/B
Headphone Out	6.3 mm (1/4")	6.3 mm (1/4")
Detachable Power Cord
uport

ZONES	Onkyo TX-NR525	Onkyo TX-NR515
Number of Zones	2	2
Powered Zones		2
Zone 2 Outs	RCA Line Out	RCA Line Out
Whole House Mode
RS-232C Interface
+12V Trigger Output	0
Remote (IR) Input/Output	0 / 0

MISCELLANEOUS	Onkyo TX-NR525	Onkyo TX-NR515
On-Screen Display		Advanced "Home" GUI
ONKYO-RI System Control
RIHD (Remote Interactive Over HDMI)
Pre-Pro/Learning Remote	/	/
On Screen Remote Programming
Bi-directional Remote Setup via GUI
Activity Based Remote
Smart Grid-Ready

RADIO	Onkyo TX-NR525	Onkyo TX-NR515
Analog Tuner	FM/AM with RDS	FM/AM with RDS
Presets	40	40
Digital Radio
Internet Radio	TuneIn	vTuner
Pandora
Spotify
Tidal
Deezer
Napster
SiriusXM

CONSTRUCTION	Onkyo TX-NR525	Onkyo TX-NR515
Solid Aluminum Front
Speaker Terminals	5	9
Large Speaker Terminals	5	7
Color-Coded Speaker Terminals
Transparent High-Grade Speaker Terminals
Gold plated RCA terminals

POWER	Onkyo TX-NR525	Onkyo TX-NR515
Power Supply	AC 230 V, 50 Hz	AC 230 V, 50 Hz
Independent Power Supply
H.C.P.S. (High Current Power Supply)	Massive High Power Transformer	Massive High Power Transformer
Toroidal Transformer
Power Consumption	400 W	480 W
No Sound Power	60 W	65 W (230 V)/70 W (240 V)
Standby Power	0.2 W	0.2 W
ECO Mode / Hybrid Standby Function

PHYSICAL	Onkyo TX-NR525	Onkyo TX-NR515
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	9.0 kg (19.8 lbs)	9.2 kg (20.3 lbs)

SPECIFICATIONS	Onkyo TX-NR525	Onkyo TX-NR515
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)		100 W (0.7% THD)
Power Output (6 Ω, 1 kHz, 2 channel driven, FTC)	100 W (0.7% THD)	125 W (0.1% 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	0.7% (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
Maximum Lineout Level and Impedance	2 V/2.2 kΩ	2 V/2.2 kΩ
S/N Ratio (Line, IHF-A)	100 dB	100 dB
Frequency Response (Analog In)	5 Hz - 100 kHz/+1 dB, -3 dB (DSP bypass)	5 Hz - 100 kHz/+1 dB, -3 dB (DSP bypass)
DSD Sampling Rates via HDMI	2.8 MHz	2.8 MHz
DSD Sampling Rates via USB	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
Warranty	2 Years	2 Years

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

For a full review please go to the review page: