From the Manufacturer
The Denon AVR4310CI 7.1-Channel Multi-Zone Home Theater Receiver with Networking Capability and 1080p HDMI Connectivity - Includes Network Audio and Photo Streaming
The AVR-4310CI is a 7-channel A/V surround receiver that not only offers DENON LINK 4th and high-bit i/p conversion and scaling along with other acclaimed Denon audio and video technologies, but also lets users enjoy a wide variety of media such as Network Audio and Photo Streaming. The AVR-4310 A/V surround receiver features Advanced Connectivity and an interface that enhances your level of entertainment enjoyment.
 Analog and digital video sources are upconverted
via Anchor Bay VRS processing to HD quality
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A Multi-Channel Experience Discover a whole new world of multi-channel surround sound with Denon’s AVR-4310CI A/V receiver, which is among the first to include Dolby’s latest Pro Logic IIz decoder, which provides for front height channels to dramatically expand the front channels’ soundstage. The highest resolution audio decoders are provided, including Dolby TrueHD and DTS-HD Master Audio for the ultimate in audio fidelity. Audyssey's newest technology, Dynamic Surround Expansion, provides a more enveloping soundstage by deriving front height or front wide width channels for the most immersive surround sound experience.
Analog and digital video sources are upconverted via Anchor Bay VRS processing to HD quality (up to 1080p/24/60), and the AVR-4310CI features no less than six HDMI inputs along with two parallel HDMI outputs. The Audyssey MultEQ XT room acoustic correction system features a supplied microphone that measures and corrects speaker/room response for up to eight measurement points, and the Dynamic Volume and Dynamic EQ systems provide rich, extended response at any volume level with no annoying volume jumps during commercials. With XM and Sirius satellite radio options, the AVR-4310CI also features built-in HD Radio for dramatically improved fidelity.
 Operate the on-screen display
with the remote control unit
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HDMI Clock Control via DENON LINK 4th DENONLINK is proprietary high-quality digital audio transmission technology that uses a real-time balanced transmission system to protect the signal from external noise. With the more advanced Denon Link 4th used in an HDMI connection, for HD audio read from Blu-ray disc as well, the master clock that operates the D/A converter of the A/V surround receiver is transmitted to the player, enabling the circuitry to be operated while sharing the same clock in order to achieve digital audio transmission with negligible jitter. Sound localization becomes more precise and a greater sense of space is produced in the sound images. When combined with a Denon Blu-ray player that supports Denon Link 4th, users will be able to enjoy the highest level of sonic quality that is expected from HD audio.
Clock Jitter Reducer Available for All Digital Inputs The Clock Jitter Reducer thoroughly suppresses fluctuations on the clock waveform to remove distortion from the digital audio signal and minimize adverse influences on sound quality.
Audyssey DSX Processing Audyssey DSX extends 5.1-channel and 7.1-channel sound sources to a wider and higher dimension. A sound that is wider to the left and right is achieved by adding a sound source (LW/RW) that is wider than the usual placement of the front (FL/FR) speakers, and a greater sense of height in sound space is achieved by adding a sound source (LH/RH) in the upper area between the FL(FR) and LW(RW) channels.
Dolby Pro Logic IIz Processing Dolby Pro Logic IIz is surround technology that adds front height channel sound sources above the front left and right speakers to enable 7.1-channel playback for 5.1-channel program sources or 9.1-channel playback for 7.1-channel sources such as Blu-ray. Since the dimensions of height is being added to the conventional surround sound, you can experience sound movements above you while watching movies or playing games. With music, the sound space of a concert hall is more realistically reproduced.
 Audyssey DSX extends 5.1-channel and 7.1-channel
sound sources to a wider and higher dimension
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USD Digital Direct Connection of iPod (audio only) The AVR-4310CI has USB ports for digital audio input from an iPod to let you enjoy music in high-quality sound made possible by acclaimed Denon audio technologies such as DDSC-HD and the combination of AL24 Processing and high-performance D/A converters. You can also operate the system while viewing information from the iPod, including music information, on the TV screen through the AVR-4310's GUI fuction. Simply use the USB cable that comes with your iPod to connect to the AVR-4310CI.
Direct Mechanical Ground Construction Vibration-resistant construction has been reviewed to thoroughly suppress the adverse influence of vibration on sound quality. The power transformers, a source of vibration, have been securely mounted on the highly rigid bottom chassis. Direct mounting of cast-iron feet to the radiator in near proximity to each other serves to suppress mutual vibration with the power transformers and other sources of vibration.
Advanced GUI Superimposed on HDMI (up to 1080p) The AVR-4310CI is equipped with an easy-to-view Graphical User Interface (GUI) featuring visual menu displays and hierarchical directories. The hierarchical directory displays let you easily see where you are and what settings you want to make. Operation has been simplified as well. These menu displays can also be output to the TV monitor over HDMI.
Choose a Denon A/V Receiver that is Right for You Home Theater System
Denon offers several models of A/V home theater receiver systems, from the entry-level AVR-1610 to the advanced AVR-4310CI model. Each A/V receiver has different qualities so you can choose the one that is right for your home and the sound you want. Here's a quick breakdown of the Denon A/V receiver systems, so you can find the one that's right for you.
Owner Reviews, Ratings, Comments and CriticismI got this only 2 weeks ago, so this is a preliminary report: From my testing so far: Pros: 1. Great sound; drastic (positive) improvement over previous Denon 1508 I had in this setup. 2. Video: The upconversion from any source to HDMI is good and works without a hassle. (The worst case testing of standard cable to 1080p doesn't look good and is more grainy than I would have liked; but standard DVD looks fantastic on my Panasonic 1080p plasma with this receiver). 3. Audussey setup: was quite easy (just took some 10 minutes) and once done, had done a good job of measuring distances and capacities of speakers I have (Martin Logan Aeons for the front, Vignette for the center, ML Grotto for the sub, but a low end polk audio for surrounds in my 5.1 setup), and correctly set the relative power etc for the speakers. I can see the difference in one of the side chairs in my listening setup. 4. On screen GUI: Great improvement over my previous Denon/Marantz etc. Again this works flawlessly, and the GUI, while it can be improved, is good enough for most people. 5. The remote: the primary remote, after you get used to it, is great. Now I could dispose of my Panasonic TV remote as well as my DVD player's remotes and just use one remote effortlessly. I also have a Harmony remote that I stopped using long time ago, and this remote is better than the harmony remote in my experience (one simple reason is that harmony remembers the state of the equipment and expects you to use only the remote always; so if you do manual change, for e.g, walk up to the TV and switch it on, harmony gets confused!). Again a great improvement over previous/lower end Denon models. 5. Network access/firmware upgrade: just having these features is a plus (BUT...I had lot of issues with this - that I am covering below) 6. Ipod direct connectivity using front USB input: great again. (I was able to connect both iphone first gen and a ipod video 5th gen as well as a ipod nano 3rd gen and use them correctly using the onscreen menu). There is an audio improvement mode that improves the compressed mp3 music ("Restorer" - has 4 modes - off or no processing, 64, 96bit and HQ - high quality?) 7. Several inputs - 6 HDMI inputs there is even a set of front inputs - hdmi, composite,USB inputs for convenience. 8. Doesn't get too hot! I tried pushing this - a higher volume on my sub-4 ohm Martin Logans and no sweat! Receiver does get hot but not too hot that you will burn your fingers! This is one big reason I bought this receiver - my experience with other brand rececivers was quite bad - at 75-90 watt/channel, these receivers trip my house fuses frequently; Denon (both my old 1508 at 75 watts and 4310 now at 130 watts) does admirably well in this regard and I have no complaints - only superlative praises for the efficiency and power handling of Denon. Now for the CONS and the problems I encountered: 1. Poor, unfinished, mediocre web access - while it does allow you to change the source, do the setup of components, control multi zones, volume control etc using [...] (browser) access), it looks very primitive - not one that you expect in a 2000$ receiver. 2. NET/USB and other network Modes: Several bugs here - let me try a few,, but I am not finished finding them yet! a. Doesn't recognize any NAS drives in the home network; only sees Windows media servers in the network! So to play music in a NAS drive, I have to first add it to a WMP library and then I can play that from Denon. This is more a feature request than a bug. b. While navigating through list of songs/albums etc, there is no page up/page down keys and so going down one entry at a time and lack of search is a pain when you have thousands of songs. c. There is a minor bug in playing media server/USB files: while the display goes to sleep after a minute or so, the album art stays in the screen in the same place - this will be bad for plasma TVs! d. Ipod troubles: I have a first generation iphone and so when I connect that, there is a warning on iphone that says this device is not compatible and so I should put the phone in airplane mode. Say no to this screen and it continues to work normally! Not sure if it is apple's bug or denon's bug! But Denon is recognizing older ipods to current generation. Quite a few problems I saw with NET/USB/Media server/internet radio have been solved with the firmware updates over the last month.. I want to give 4.5 stars, only because most of the problems I saw can be fixed by software updates (I hope Denon will act fast), and the rest, the most important thing for me - audio quality, video quality, power handling - are worth 6 stars. I haven't got to testing Audussey DSX - the height and wider channel features presented by this receiver. I will update this review as I test more features... Update: July 2010: After almost a year and several firmware upgrades later, I still haven't tested the Audissey DSX feature. But the problems I noted with media server/Net are still there - in particular, the media server is still sooooo slow, I can't really use it. In fact, my Denon is wired to the wireless router. Sharing music between my systems using wireless on Windows 7 pcs/notebooks is reasonably (much) faster but Denon is quite slow - literally takes several seconds for each key press. Internet radio, napster, usb drives etc are quite useable (no issues there). The http screens for this receiver are still primitive - no changes there. You will still need the on-screen menus if you want to make changes. The best you can do with http access is to change the input, change volume/mute (more like a simple remote). Ultimately, the sound quality is great and audio performance of this receiver rocks - the sole reason for my buying this receiver. In spite of all the other small issues I mentioned, the sound quality and power performance (runs quite cool for the power it handles) is one of the best I have seen at this price range. UPDATE: 11/26/2010: With the latest firmware updates, the network access and Ipod/USB access etc seem to have improved several fold. Now access to media on my NAS box in the home network is quite snappy, and I can play a song in a couple of seconds after selecting the song.
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