| | | 3x HDMI v1.4 inputs More Info... |
3x HDMI v1.4 inputs▲
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High Definition Multimedia Interface (HDMI) v1.4
The HDMI v1.4 connections on the ONKYO TX-SR309 allows for the transmission of 1080p 3D content between a
3D-compatible Blu-Ray Disc player and a 3D HD display. It also brings in
an audio return channel allowing for two-way transmission of audio. This
allows your television, for example, to send audio back from its
integrated tuner to the receiver, solving the problem of having to run
more than one cable between your A/V receiver and TV.
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| | | Audio return channel over HDMI More Info... |
Audio return channel over HDMI▲
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Audio Return Channel
Included in the specifications of HDMI v1.4, ARC (Audio Return Channel) allows an audio signal to be sent from the TV as
well a video signal is sent towards it. In short, this eliminates the need to connect any extra cables (SPDIF or analogue)
to carry audio from your TV tuner to your receiver. In order for this feature to work, both the AV receiver and television
must be v1.4 compatible.
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| | | Dolby True HD, Dolby Digital Plus and DTS HD decoding More Info... |
Dolby True HD, Dolby Digital Plus and DTS HD decoding▲
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Dolby TrueHD
The ONKYO TXSR309 has
Dolby TrueHD which is a next-generation lossless technology developed
for high-definition disc-based media. It delivers sound that is bit-for-bit
identical to the studio master at a bit rate of up to 18 Mbps. It also supports
up to 8 full-range channels of 24-bit/96 kHz audio (although TrueHD can support
more than 8 channels, HD-DVD and Blu-Ray standards limit it to 8) and extensive
metadata including dialogue normalization and dynamic range control all through
an HDMI connection. Dolby TrueHD is compatible with existing and future AV
amplifiers/receivers.
Dolby Digital Plus
The ONKYO TX-SR309 has Dolby Digital Plus decoding. Dolby Digital Plusis a next-generation audio technology for all high-definition programming and media.
Dolby Digital Plus was designed for the delivery formats of the future, but remains fully compatible with all current AV amplifier/receivers.
Dolby Digital Plus is capable of supporting data rates of up to 6Mbps and having a bit rate performance of at least 3Mbps on Blu-ray.
DTS-HD
The ONKYO TX-SR309 has DTS-HD which has been selected as an optional audio technology for Blu-Ray
Disc and HD-DVD. DTS-HD is a set of extensions to DTS' Coherent Acoustics audio
coding system which encompasses DTS Digital Surround, DTS-ES 6.1 discrete, DTS
Neo:6 and DTS 96/24. As a mandatory technology in the next generation standards,
a DTS decoder will be built into every HD-DVD or Blu-ray Disc player. A single
DTS-HD data stream on a disc can carry everything from standard DTS 5.1 playable
on virtually all existing 280 million plus DTS decoders, all the way to lossless
for next-generation systems.
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| | | USB input with iPod Digital allowing for direct connection of modern iPods digitally with no need for an external docking station |
| | | Built in RDS FM/AM Tuner with 40 presets More Info... |
Built in RDS FM/AM Tuner with 40 presets▲
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RDS
The ONKYO TX-SR309 has an RDS Radio Data System Radio Tuner.
RDS is Data piggybacked on analogue FM radio allowing RDS tuners to display the names of stations.
Used in most car stereos the feature is also useful in the home to let you know which station you are listening to
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| | | Onkyo "Advanced Music Optimizer" More Info... |
Onkyo "Advanced Music Optimizer"▲
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Compressed audio such as .mp3 files lose significant amounts of information during the compression process. The Advanced Music Optimizer from Onkyo aims to improve the quality of compressed audio, and also has integrated loudness correction technology which attempts to equalise the compressed audio file for a fuller-sounding playback.
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| | | Advanced 32-bit DSP processing chip |
| | | 4 dedicated DSP modes for gaming (Rock, Sports, RPG or Action) |
| | | Burr-Brown 192kHz/24bit (PCM1690) DACs for all channels More Info... |
Burr-Brown 192kHz/24bit (PCM1690) DACs for all channels▲
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Digital to analogue converter (DAC)
Converts the digital data signal into analogue signal that can be amplified and reproduced using speakers or headphones so that our ears can hear it.
In the case of video the data is converted into a video signal that can be reproduced by a display device so that we can see it.
Once data is converted to an analogue signal it then can degrade and lose its quality every step of the way. Most modern equipment is designed to keep data in the digital (Lossless) domain as long as possible.
In an ideal world data would be kept digital right up until the point that you see or hear it avoiding degradation.
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| | | HCPS (High Current Power Supply) power transformer |
| | | A/V sync function More Info... |
A/V sync function▲
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Occasionally some video signals may become desynchronised from the audio signal. The Onkyo TX-SR309 has an A/V sync function (also known as lip-sync) offering correction up to 400 milliseconds at 48kHz
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| | | Overlaid on screen display GUI and setup menus via HDMI |
| Optional Products For
The TXSR309 The AudioquestHome Cinema Cable Starter Pack
Onkyo BD-SP309 Blu-Ray Player
Next Model Up in the ONKYO Range
ONKYO TXNR509
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