Specifications
9.2-ch AV SURROUND RECEIVER
AVR-4520
Network capable 9.2-ch AV Receiver with 11.2-ch Processing Circuit, Denon Link HD, 
Audyssey Mult EQ XT32, Network-Hub, 4K Video and triple HDMI Output.
Supports the full Network functionality including DLNA1.5, AirPlay, Internet Radio 
and Spotify to allow you to enrich your entertainment world.
9-ch discrete monaural construction
power amplifier
Premium Silver
Black
9 10
220 W (6 ohms JEITA) Fully Discrete 
Power Amplifier with identical Quality 
and Power for All 9-Channels
To faithfully reproduce the original surround 
sound, each 9-ch power amplifier is 
equipped with identical power specification 
and sound quality. Since these power amps 
also use discrete circuits configured with 
parts strictly selected for their contribution 
to high sound quality, the surround sound 
playback is of impeccably high quality. 
Signal paths are as short as possible to 
keep signal degradation in the audio 
circuitry to an absolute minimum.
Equipped with an input terminal for 
the newly developed Denon Link HD 
Jitter during digital transmission is reduced 
significantly by Denon Link HD. The clock 
for the digital transmission is supplied 
from AV receiver to Blu-ray player through 
an additional link cable for complete 
synchronization between 2 units. Denon 
Link HD is supported by the DBT-3313UD 
in Blu-ray player category. 
AL32 Processing Multi Channel
The acclaimed AL32 Processing Multi 
Channel processing improves the fidelity 
of 2-ch and multi channel sources including 
PCM and bit streaming signals such as Dolby 
and DTS by sophisticated DSP processing 
algorithms that improves low level detail 
and enhances fidelity by adaptive filtering 
techniques. AL32 Processing Multi Channel 
also provides increased dynamic range 
and spatial information, bringing out all the 
nuances with optimum clarity and fidelity.
Equipped with advanced multi-channel 
surround sound, Audyssey DSX,  
Dolby Pro Logic IIz and DTS Neo:X
This unit supports the Dolby Pro Logic 
IIz that extends the space in the height 
direction and the Audyssey DSX that also 
extends it forward to allow you to enjoy 
surround sound with the spread and depth 
worthy of large-screen, high-definition 
displays. DTS Neo:X delivers the most 
flexible upmixing solution up to 11.1-ch for 
high-end home theater systems.
Audyssey MultEQ XT32
It is the most accurate room equalization 
solution with more than ten thousand 
individual control points allowing finer details 
of the room’s problems to be captured and 
optimized. The ultra high resolution filters 
are applied to all channels including the 
subwoofers, with the most obvious benefit 
being heard in the low frequency range 
where correction is needed the most.
Equipped with 7 input and 2+1 output 
HDMI terminals that fully support 
next-generation 4K displays
Seven systems are provided for the 4K 
video signal supporting HDMI input. One of 
these systems is located at the front so that 
you can easily enjoy video from a movie 
camcorder, game console, or smart phone. 
The HDMI output has a new terminal 
for zone output in addition to 2 systems 
capable of simultaneous output to allow the 
HDMI input video and audio to be output to 
a sub-zone independently.
Other functions
Stable power supply for high-quality 
sound and image playback
Dynamic Discrete Surround Circuit, 
D.D.S.C.-HD32 Digital with AL32 
Processing Multi Channel, to dramatically 
enhance the listening experience
192 kHz/32-bit D/A converters for 
all channels
Supports DSD audio signal input from 
HDMI
Pure direct mode for enjoying 
high-fidelity sound
Minimum signal path for clear audio and 
video signal
Supports 4 ohms speakers
Compressed Audio Restorer
GUI overlay on HDMI
InstaPrevue
MHL Interface Compatible
4 Quick Select buttons
Supports multi-zone output for up to  
4 zones
PHONO input
FM radio tuner
Sleep timer
Remote controller with Backlite and  
LCD display
Large-capacity block capacitor
High-current schottky barrier diode
Inside of trap door
AVR-4520
9.2-ch AV Surround Receiver 










