5.2ch AV Receiver: The Sony STR-DH550 AV Receiver is
equipped with a 5-channel amplifier rated at 90 watts (into 6-ohms, at 20-20kHz,
with 0.09% THD, driving 2 channels) which provides high dynamic power with
low-impedance drive capability. The STR-DH550 also includes dual LFE
(mono-subwoofer) outputs for connecting two powered subs.
Digital Cinema Auto Calibration (DCAC): The Sony
STR-DH550 is equipped with Digital Cinema Auto Calibration Technology which uses
the included microphone to automatically check the speaker connections, adjust
the speaker output levels, calculate the distance from each speaker to the
listening position, and distinguish frequency characteristics of each speaker.
The microphone has an 15' cord attached that plugs into the microphone input on
front of the receiver. You can also choose to manually adjust the AV receiver's
Auto Format Direct (A.F.D.) Mode: The Auto Format Direct (A.F.D.)
mode allows you to listen to high fidelity sound and select the decoding mode
for listening to a 2-channel stereo sound as multi-channel. You can set the
A.F.D. mode to Auto or Multi Stereo.
- A.F.D. Auto: Presets the sound as it was
recorded/encoded without adding any surround effects.
- Multi Stereo: Outputs 2-channel left/right signals from
Dolby Digital/DTS/Dolby Pro Logic: The Sony STR-DH550 AV
receiver features Dolby Digital and DTS-HD decoding, as well as offers Dolby Pro
Logic audio processing.
Note: Dolby Digital and DTS listening modes can only be
selected if your audio source is connected to the AV receiver via a digital
audio connection (HDMI, optical, or coaxial). Even though the AV receiver
will decode 7.1ch surround sound (via HDMI), it will only output 5.1ch
surround, because it lacks Surround Back channel speaker outputs.
HD Digital Cinema Sound (HD D.C.S): HD Digital Cinema Sound
(HD-D.C.S.) is Sony's new innovative home theater technology using the latest
acoustic and digital signal processing technologies. It is based on precise
response measurement data of a mastering studio. With this mode, you are able to
enjoy Blu-ray and DVD movies at home with not only the high quality of sound,
but also the best sound ambience, just as the movie's sound engineer intended in
the mastering process.
- For Movies:
- Dynamic: This setting is
suitable for an environment which is reverberant but lacks a spacious
feel (where sound absorption is not sufficient). It emphasizes the
reflection of sound and reproduces the sound of a large, classic movie
theater. This emphasizes the spacious feel of a dubbing theater and
creates a unique acoustic field.
- Theater: This setting is
suitable for a general living room. It reproduces the reverberation of
sound just like in a movie theater (dubbing theater). It is most
appropriate for watching content recorded on a Blu-ray Disc when you
want the atmosphere of a movie theater.
- Studio: This setting is
suitable for a living room with the appropriate sound devices. It
reproduces the reverberation of sound provided when a theatrical sound
source is remixed for a Blu-ray Disc to a volume level suitable for home
use. The level of reflection and reverberation of sound is kept to a
minimum, while dialogues and surround effects are reproduced vividly.
- For Music:
- Hall: Reproduces the acoustics
of a classical concert hall.
- Jazz Club: Reproduces the
acoustics of a jazz club.
- Live Concert: Reproduces the
acoustics of a 300-seat live house.
- Stadium: Reproduces the feel
of a large open-air stadium.
- Sports: Reproduces the feel of
- Portable Audio: Reproduces
clear enhanced sound from your portable audio device. This mode is ideal
for MP3s and other compressed music.
Pure Direct: The receiver's Pure Direct mode outputs
audio from only the front left and right speakers without any tone or DSP
processing; only the volume and front speaker balance adjustments are active.
Headphone Modes: The receiver offers two distinct headphone
- HP 2CH: Sets the receiver to power only the front left
and right speakers, no surround and no subwoofer. Two channel sources bypass
the sound field processing and multi channel sources are down-mixed to 2
- HP Direct: Amplifies the source without any processing,
only the volume and front speaker balance adjustments are active.
Advanced Audio Settings:
These advanced audio settings allow you to tailor the sound to your source
content, listening conditions, and your personal preferences.
- Equalizer: You can adjust the
tonal quality (bass & treble level) of the front speakers from -6dB to +6dB,
in 1dB steps.
- Auto Volume: Auto Volume adjust the volume automatically depending on
the input signal or content from the connected equipment. This function is
useful, for example, when the sound of a commercial is louder than the TV
- Dynamic Range Compressor: This feature allows you to compress the
dynamic range of the sound track. You can select standard or maximum
compression, or off (only works with Dolby Digital sources).
- Night Mode: This function allows you to retain a theater like
environment at low volume levels. When watching a movie late at night, you will
still be able to hear the dialog clear even at a low volume level.
Audio Inputs/Outputs: The Sony STR-DH550 offers a variety of
analog and digital audio inputs/outputs.
- Digital Inputs: The receiver has two optical digital inputs and one coaxial digital inputs
You can choose auto decoding or PCM for the digital audio inputs. Auto will decode the signal in its
original form (Dolby Digital, DTS, PCM, etc), PCM decodes the signal to
2-channel. All of the digital audio jacks are compatible with 32 kHz, 44.1 kHz,
48 kHz, and 96 kHz sampling frequencies.
- Speaker Outputs: The receiver is equipped with binding
post terminals for all speaker channels. The binding post terminals will
accept bare wire, pin connectors, and banana plugs (single only). Use speakers with a 6- to
- Dual Sub Outputs: The AV receiver is fitted with two
subwoofer preamp outputs to connect dual powered subs (the subwoofer outputs
share the same input signal and are not discrete).
- Headphones: When headphones are plugged into the full-size 1/4" jack on the front panel, all
the speakers are automatically muted. No sound is output from the headphones
when iPod or iPhone is connected to the receiver.
HDMI 2.0: The receiver is equipped with four HDMI (v.2.0)
inputs for connecting HDMI-equipped audio/video component; such as your
satellite/cable receiver, Blu-ray/DVD player, and game system. It also allows
you to connect all of your devices to your TV with a single HDMI cable via its
ARC-compatible HDMI monitor output, reducing cable clutter. The receiver's HDMI
v.2.0 jacks are compatible with 4K/60Hz and 1080p video, 3D video signals, Deep
Color & x.v.Color technology; as well as LipSync, ARC, and HDMI control.
- 4K/60Hz Pass Through: 4K/60Hz Pass Through allows the
Sony STR-DH550 to receive ultra high-definition resolution video and pass
the video signal to a 4K/60Hz compatible TV or display monitor.
- 3D-Ready: The Sony STR-DH550 is compatible with 3D-ready Blu-ray
disc movies, video games, and other 3D content through its HDMI (v.1.4)
connections. 3D viewing requires 3D-ready source with 3D
content, 3D-ready HDTV, 3D glasses, and high-speed HDMI cable. Other 3D
accessories may also be needed.
- Deep/x.v.Color Support: The Sony AV receiver also
supports Deep Color and x.v.Color content, which can display a larger color
range than standard-definition schemes. The result is a more lifelike,
- A/V Sync: The audio output can
be delayed so that the time gap between the audio output and the visual display
is minimized. This is especially helpful when you are using a large LCD or
plasma TV or a projection TV. When activated, the delay is fixed at 60 ms.
- ARC (Audio Return Channel): This feature allows audio to be
sent from your compatible HDTV to your receiver through the same HDMI cable
already being used to send audio and video to your HDTV. This eliminates the
need for extra cables connected to your television.
Note: The AV receiver's HDMI 2.0 jacks do not support the latest HDCP 2.2
copyright protection for 4K ultra-HD content, so it will not support 4K content
from satellite/cable providers, online video services, and Blu-ray disc
which are copyright protected with HDCP 2.2.
24p True Cinema Mode: The 24p True Cinema Mode allows you to watch movies at their native frame rate 24p format (24
frames per second) when paired with a 24p playback device like a Blu-ray Disc
MHL Compatible HDMI: One of the receiver's rear-panel HDMI
inputs (labeled "Video/MHL") is MHL compatible, which provides direct connection
of MHL compatible smartphones, like your Android smartphone. Playback of up to 1080p video and multi-channel
audio from the phone is supported. The receiver will also charge (5V/1A) your
connected phone. Play, Stop, and other basic operations can be controlled from
the AV receiver's remote control.
HDMI Standby Pass-Through: The HDMI Standby Pass-Through
feature conveniently allows you to access all your HDMI connected devices
without having to power on the receiver.
Composite Video Inputs: The Sony STR-DH550 is also fitted with two
analog composite video inputs and one composite video monitor output. The
composite video jacks support 480i video signals only.
Front-Panel USB Port: This AV receiver is equipped with a front-panel
USB (type-A) port that allows you to enjoy WAV (8-48kHz; 16-bit), MP3
(32-320kbps), WMA (48-192kbps), and AAC (48-320kbps)music files from a USB mass
storage class memory device; such as your Android smartphone (Froyo/Gingerbread
OS only), Sony Walkman, or USB thumbdrive. The receiver can recognize up
to 256 folders and 256 files in each folder. You can use the receiver's
on-screen menu (via HDMI) and remote control to navigate your stored music files
on your connected USB memory device. USB portable audio devices that can be
charged via USB will be charged when plugged into the AV receiver's USB port
(5V/1A); even in standby mode.
iPod/iPhone Direct: The Sony STR-DH550 supports digital
music playback from an iPod, iPhone, or iPad using its front-panel USB (type-A)
port. Simply plug your compatible Apple device into the receiver's front-panel
USB port, using the cable that came with your iPod/iPhone/iPad. Stored music and
music apps from your connected Apple device can be played through the AV
receiver, bypassing the iPod/iPhone D/A converter for better sound quality. The
iPod/iPhone/iPad can be controlled by the receiver's remote, or you can continue
to use the Apple device's clickwheel or touchscreen. You can search for stored
music on your compatible Apple device by Playlist, Artist, Album, Song, Podcast,
Genre, Composer, or Audiobook. You also have access to Repeat (One/All/Off) and
Shuffle (Songs/Albums/Off) functions. The receiver offers limited control
(Play/Pause, Previous/Next Track) of music apps on your iPod/iPhone. Song/artist information from
stored music and music apps on your iPod/iPhone will display on your connected
TV via HDMI. Your Apple iPod/iPhone's battery will be charged while connected to
the receiver (max. 1A). This unit will not charge the iPad. The Sony
STR-DH550 is "made for iPod/iPhone" and supports the following iPod/iPhone model
functions (as of 4/4/2014).
| Apple Device || Generation || Tested Version || Media Type || Control Type || Display Type || Charge |
| Audio || Video || Remote || iPod/iPhone || Album Art || Artist/Song Text || Track Info |
| iPad || 1 || 5.1.1 || Y || N || Y || Y || N || Y || Y || N |
| 2 || 7.1 || Y || N || Y || Y || N || Y || Y || N |
| 3 || 7.1 || Y || N || Y || Y || N || Y || Y || N |
| 4 || 7.1 || Y || N || Y || Y || N || Y || Y || N |
| mini || 7.1 || Y || N || Y || Y || N || Y || Y || Y |
| iPhone || 2G || 3.1.3 || Y || N || Y || Y || N || Y || Y || Y |
| 3G || 4.2.1 || Y || N || Y || Y || N || Y || Y || Y |
| 3GS || 5.1.1 || Y || N || Y || Y || N || Y || Y || Y |
| 4 || 7.1 || Y || N || Y || Y || N || Y || Y || Y |
| 4S || 7.1 || Y || N || Y || Y || N || Y || Y || Y |
| 5 || 7.1 || Y || N || Y || Y || N || Y || Y || Y |
| 5C || 7.1 || Y || N || Y || Y || N || Y || Y || Y |
| 5S || 7.1 || Y || N || Y || Y || N || Y || Y || Y |
| touch || 1st || 2.2.1 || Y || N || Y || Y || N || Y || Y || Y |
| 2nd || 4.2.1 || Y || N || Y || Y || N || Y || Y || Y |
| 3rd || 5.1.1 || Y || N || Y || Y || N || Y || Y || Y |
| 4th || 6.1.3 || Y || N || Y || Y || N || Y || Y || Y |
| 5th || 7.1 || Y || N || Y || Y || N || Y || Y || Y |
| nano |
| 2nd || 1.1.3 || Y || N || Y || Y || N || Y || Y || Y |
| 3rd || 1.1.3 || Y || N || Y || Y || N || Y || Y || Y |
| 4th || 1.0.4 || Y || N || Y || Y || N || Y || Y || Y |
| 5th || 1.0.2 || Y || N || Y || Y || N || Y || Y || Y |
| 6th || 1.2 PC || Y || N || Y || Y || N || Y || Y || Y |
| 7th || 1.02 PC || Y || N || Y || Y || N || Y || Y || Y |
| classic || 80GB || 1.1.2 || Y || N || Y || Y || N || Y || Y || Y |
| 120GB || 2.0.1 || Y || N || Y || Y || N || Y || Y || Y |
| 160GB || 2.0.4 || Y || N || Y || Y || N || Y || Y || Y |
Note: Apple iPod/iPhone software updates may change
functionality results. If you download a newer software version, you may
need to reset the unit and your iPod/iPhone to regain functionality. If this
doesn't work, you may need to wait until a newer software update is
On-Screen Menu (via HDMI): You
can display the menu of the receiver on your HDMI connected TV screen and select
the function you want to use from the on-screen menu using the included IR
remote control. If your TV is connected to the composite video monitor
output, you will need to use the AV receiver's front-panel display when changing
AM/FM Tuner: The STR-DH550 has 30 presets each for AM and FM for a total of 60. In
addition to preset and auto tuning, stations can be tuned directly by frequency.
Each preset station can be given an 8 character name.
Input Naming: You can enter
a name of up to 8 characters for each of the receiver's inputs (except Tuner)
and display the name on its display. This is convenient for labeling the jacks
with the names of your connected components.
Sleep Timer: The unit
may be set to automatically turn off after 30, 60, 90, or 120 minutes.
Auto Standby: Auto Standby lets you set the receiver switch to standby
mode automatically after 30 minutes when you do not operate the receiver or when
there is no signal input to the receiver.
Wireless Remote: The supplied IR remote is pre-coded to control this Sony receiver, Sony
TVs, Sony CD players, Sony DVD players and recorders, and Sony Blu-ray disc
players and recorders.
Bravia Sync (HDMI-CEC): Sony's Bravia Sync feature
allows you to easily manage select Sony Bravia Sync components and other
manufacturer's HDMI-CEC enabled audio/video components with a single remote. By connecting
Bravia Sync and other components that are
compatible with the HDMI Control function using a HDMI (1.3+) cable, operation is
simplified in the following ways.
- One-Touch-Play: When you playback a component such as a
DVD/Blu-ray Disc Player, the receiver and the TV are turned on automatically
and switch to the appropriate HDMI input.
- System Audio Control: While watching TV, you can select
to output the sound from the TV speaker or the speakers connected to the
- System Power Off: When you turn off the TV, the
receiver and connected components are also turned off simultaneously.