Oppo UDP-203 or Dune HD Duo 4K – review and testing of media players

We have already attempted to compare two completely different devices. Despite the seemingly strange – at first glance – approach, the resulting comparison of the incomparable had quite a serious success for a natural reason: it is always interesting to draw such parallels. Interesting and informative.

The return to this topic is caused not only by the progress of the player-making and the appearance of new models. Interest is fueled by the ongoing competition of brands. Yes, they have a dissimilar vision of the source of content. There is a difference in signal processing technologies. Often the differences are available as components and workmanship. As a result, all of the above affects the final cost of the product, which significantly increases the interest in such comparisons.


The devices that are compared today belong to the middle (for someone higher) price category. They do not have to do with the extremely cheap devices – all these countless Android devices, miniature media players – whose shaft comes from the Middle Kingdom through electronic stores, and thanks to domestic rebranding. But, for the sake of justice, it should be noted: if you include at least one representative of “penny microelectronics” in comparison, the result of the article risks being extremely unexpected. But we will not correct the editorial plans. If you compare, then you need to do this, relying on at least one serious factor. Key. In our case, this is the cost of the product. It, we shall repeat, high enough in both cases. It’s not surprising, it’s about premium products.

Summarizing the above, we note that this material can be considered an ordinary review of the new model of the Blu-ray player Oppo UDP-203, but a parallel comparison of the studied parameters with similar parameters of the other player (as far as possible) turns the review into a comparative article. Which, recall, gives a much more vivid answer to the question: what is he, the ideal media player? As for the second player, this is Dune HD Duo 4K, whose review was published not so long ago.

Oppo UDP-203 & Dune HD Duo 4K – price. Where is the best place to buy?

The recommended retail price in the US for the Oppo UDP-203 is about $ 549,00 and for the Dune HD Duo 4K is about $ 349,00. At this cost, you can order it on Amazon. Plus Shipping, so the total cost of Oppo UDP-203 when ordering on Amazon will be about $ 560,00 or $ 360,00. I would not recommend ordering anywhere else except on Amazon. Since you are less likely to find cheaper, and if you do not take into account the fact that Amazon is probably the most reliable online store, it still very often provides free shipping.

Construction

The protagonist is a full-size player of standard sizes, that is, designed to be installed in a “rack”, where there is already at least an audio receiver. This also applies to the media player Dune HD Duo 4K. His body, though a little lower, has almost the same dimensions and weight.



Oppo UDP-203


Oppo UDP-203
Dune HD Duo 4K


Dune HD Duo 4K

Completeness of devices is equally modest: HDMI-cable, power cable and remote control. It should be noted the high quality of the manuals: each player is accompanied by a paper book with a detailed description of the functions and all settings of the devices.

Oppo UDP-203
Oppo UDP-203
Dune HD Duo 4K
Dune HD Duo 4K

If the front panel of the Dune is plastic, the Oppo panel is made of a metal alloy with a coating. A characteristic feature of the players is one for two: the modern tendency of brevity dictates a minimum of controls and other distracting details. Several control buttons, a backup USB port for quick connection of mobile media, and a central small display.

Oppo UDP-203
Oppo UDP-203
Dune HD Duo 4K
Dune HD Duo 4K
Looking at the back panel, where the main interfaces are usually collected, any user with sufficient experience will easily list the main functions of the device. It is not difficult for us to do this either:

Oppo UDP-203
Oppo UDP-203


  • Gigabit Ethernet LAN port
  • HDMI 2.0a output (video and audio)
  • HDMI 1.4b output (audio only)
  • HDMI input
  • S / PDIF optical audio output
  • S / PDIF coaxial audio output
  • two USB 3.0 ports
  • RS-232C connector (serial port for management)
  • trigger output and input (can be used in the “smart house”)
  • connector for external IR receiver
  • 7.1 / 5.1 / stereo audio outputs
  • power connector

Dune HD Duo 4K
Dune HD Duo 4K

  • connectors for attaching two Wi-Fi antennas
  • Antenna output and input for TV reception
  • Two balanced XLR audio outputs
  • analog stereo outputs
  • S / PDIF coaxial audio input
  • “empty” port, a form resembling USB 2.0 for external drives, with the inscription Reserved
  • HDMI digital video output version 1.4
  • S / PDIF optical audio output
  • S / PDIF coaxial audio output
  • CVBS composite video output
  • Gigabit Ethernet LAN port
  • two USB 2.0 ports
  • connector for connecting an external infrared sensor
  • connector and power switch

Comparative evaluation of the composition of interfaces we will do at the end of the article, but for now we will continue to study the “iron” arrangement of the devices.

The cooling system of the players differs in their design: Oppo uses passive cooling, in Dune the same heat dissipation is produced by a fan that works on blowing. By the way, the fan is very high-quality, almost noiseless. True, working hard disks give an unpleasant loud annoying vibration, which can be eliminated by placing pieces of dense foam rubber under the supports of the Dune player.

Oppo UDP-203
Oppo UDP-203
Dune HD Duo 4K
Dune HD Duo 4K



The internal design is also different, primarily due to the device form factor itself: Oppo is a Blu-ray player, and Dune only works with “inanimate” content. Accordingly, the layout of the PCBs differs – if in Dune all electronics are shifted to the rear wall to avoid contact with two hard disks, then in Oppo components are located the letter P that surrounds the central Blu-ray drive.

Unlike media players, which are developed by improving functions based on existing hardware solutions, the Oppo UDP-203 player was developed practically from scratch. So, if the previous Oppo models had hardware decoders similar to those built into TVs, the UDP-203 model received the newest UHD decoder OP8591. It was obtained in cooperation with the well-known processor company MediaTek, and it took a lot of time and money to develop. As a result, the resulting SoC is fully compatible with the HEVC and V9 codecs, HDR10 and the enhanced color space Rec.2020, as well as Dolby Vision. In the audio version of Oppo, too, everything looks good: to convert a digital signal to an analog one uses a DAC Asahi Kasei AK4458VN. By the way, this chip uses some very expensive AV-receivers, for example Marantz SR-7010 and Denon AVR-X4200W. Thus, the Oppo player can be used in conjunction with an end amplifier as a multi-channel DAC and power preamplifier.

Oppo UDP-203
Oppo UDP-203



Oppo UDP-203
Oppo UDP-203
Oppo UDP-203
Dune HD Duo 4K
Dune HD Duo 4K
Dune HD Duo 4K
Dune HD Duo 4K
Dune HD Duo 4K

Finally, we will conduct an interesting test, giving a temperature map of the devices. Of course, it’s unlikely that players of such dimensions can give any kind of risky heating of electronic stuffing, but nevertheless. Photographing of players with a thermal imager was carried out after several hours of reproduction of the most “heavy” video content, the temperature in the room was about 24 ° C.

Oppo UDP-203
Top view, body closed
Oppo UDP-203
Bottom view
Oppo UDP-203
Top view, cover open
Oppo UDP-203

Dune HD Duo 4K
Top view, body closed
Dune HD Duo 4K
Bottom view
Dune HD Duo 4K
Top view, cover open
Dune HD Duo 4K



Nothing extremely hot – as you can see, the warmest zones in both players are the central processors, which heat their radiators to only 41 ° C in Oppo and up to 46 ° C in Dune. At such temperatures by today’s standards, even paying attention does not make any sense.

The remote controls supplied to the players are equally functional, however the Oppo has one remarkable feature: an integrated sensor that automatically turns on the backlight of the buttons, just touch the remote.

Oppo UDP-203
Пульт Oppo UDP-203

Dune HD Duo 4K
Пульт Dune HD Duo 4K

Main specifications Oppo UDP-203 and Dune HD Duo 4K

& nbsp; </href=”http://oppodigital.com/catalog/players/udp-203″ rel=”nofollow”>Oppo UDP-203 Dune HD Duo 4K
Video Processor OP8591 Sigma Designs SMP8758
Interfaces
Video Inputs
  • HDMI
none
Audio Inputs
  • HDMI
  • S / PDIF coaxial audio input
Video Outputs
  • HDMI 2.0a
  • HDMI 1.4
  • Composite video output
Audio Outputs
  • 2 × HDMI
  • Analog audio outputs 7.1 / 5.1 / stereo
  • S / PDIF optical audio output
  • S / PDIF coaxial audio output
  • Two balanced XLR audio outputs
  • analog stereo outputs
  • HDMI
  • S / PDIF optical audio output
  • S / PDIF coaxial audio output
Network
  • LAN 100/1000 Mbps
  • Wi-Fi 802.11 / b / g / n / ac (2.4 + 5 GHz)
  • LAN 100/1000 Mbps
  • Wi-Fi 802.11 / b / g / n / ac (2.4 + 5 GHz)
USB
  • 1 USB 2.0
  • 2 USB 3.0
  • 3 USB 2.0
  • SD memory card slot
Data Sources
  • optical media
  • Internet
  • Local network
  • USB drives
  • HDMI input
  • two HDD 3.5 “to 10 TB each
  • Local network
  • Internet
  • USB storage
  • SDHC / SDXC memory card
  • TV tuner DVB-C / T / T2
Other characteristics
Dimensions 430 × 311 × 79 mm, 4.3 kg 437 × 300 × 67 mm, 4 kg
Display matrix
Power Supply built-in
Recommended Cost $ 550 $ 350

Settings

First of all, we will close the issue of the method of transfer / transfer of content, because it directly affects the design of players that we dared to compare. Of course, I would like to close it, without opening it. Since this question is quite specific and to some extent even religious. So, the choice: a corporate designed optical media in hand (the notorious dummy) or a soulless file / folder with files that can be on both local media and somewhere in the wilds of the Web? We will not discuss the notorious difference in the quality of the reproduced content – in the vast majority of cases it is the same, the columns of zeros and ones are absolutely identical regardless of the type of media on which they are stored. The only question is the convenience of searching and the speed of getting content. In this respect, optical media obviously lose to the file library. What is the gain? Perhaps, only in personal preferences. Which can be supported also legislatively by a total prohibition on copying and distribution of files on the Network. Other reasons for the use in our time of such an archaic medium, as a non-rewritable optical disc, the author will not be able to name. Perhaps one of the readers will tell? We are grateful.



However, no. One reason still remained. More precisely, appeared. This happened recently and is connected with the beginning of the distribution of a new format for video for optical media: Ultra HD Blu-ray. This format allows you to burn a movie with a frame size of 4K and even with HDR technology. Yes, this is a multiple increase in detail, caused by a multiple increase in the number of pixels. And yes, the extended range eliminates such a known encoding defect as the boundaries of the shades in the gradient fills (although the TV is also required corresponding, with HDR technology, but this is particular).

By the way, it is likely that soon on sale will appear (if not already appeared) Ultra HD Blu-ray-discs with the old well-known films on them. Remember the scene from the movie “People in Black”, where the agent laments the soon-to-be need to purchase the collection of The Beatles albums on a new medium?

Wait a minute, but where in the old movies 4K-resolution? – the thoughtful user will be indignant. And it will be wrong. Or right, but not to the end. Modern methods of scanning the original well-preserved 35-millimeter film, modern methods of image processing and coding – these tricks may well give the quality of modern filming.

In our case, to test the playback of Ultra HD Blu-ray discs, there are three samples of optical masterpieces. All three movies on these discs are recorded in the same format: Ultra HD Blu-ray with HDR technology.

But what about the Dune player that came to our comparison: it does not have a UHD Blu-ray drive? No problem, for him, too, there is a similar content. And in a very similar format. Just take a picture of these films will not work, because they are files. No, Ultra HD Blu-ray is not yet “hacked”, direct copying of such discs today is not possible. However, a cunning user will always find a way to record and copy what can be reproduced.

Let’s sum up our lyrical digression: each user decides independently how he stores, replenishes and looks through his media library. Either he collects disks, or finds, downloads content and carefully saves it on hard disks / network drives. There is also a third model of behavior: downloaded – looked – deleted as unnecessary. And why keep? On the web, everything is perfectly preserved without it. If necessary, then again: downloaded-looked-deleted.

Closing this hard question, let’s move on to the direct study of the players. Let’s start, as usual, with the inclusion of devices.

The process of loading the machines to full readiness takes a different time. Oppo again, like in our previous comparison of these two brands, outperforms Dune: it takes 15 seconds to turn on, while Dune is ready to work in only 50 seconds.

The start pages have a different design and construction: Oppo uses a static list of functions located at the bottom, and Dune offers a typical “carousel” of icons.

Oppo UDP-203
Меню Oppo UDP-203
Dune HD Duo 4K
Меню Dune HD Duo 4K
The settings menu in the players also looks different, Oppo presents it in a strict table layout, and Dune – in a visual colorful.

Oppo UDP-203
Oppo Menu UDP-203
Dune HD Duo 4K
Menu Dune HD Duo 4K

The composition and number of settings depends entirely on the hardware functions and capabilities of each device. Probably, it makes no sense to list each item, it will successfully make the user’s guide for us. Note only the key elements that reveal the highlight of each of the players.

Oppo UDP-203
Oppo UDP-203
Oppo UDP-203
Oppo UDP-203
Dune HD Duo 4K
Dune HD Duo 4K
Dune HD Duo 4K
Dune HD Duo 4K



In each player there is the possibility of fine-tuning both video and audio signals. The most important difference between the compared players is the maximum frequency on the video output in 4K mode. It is 60 frames per second for Oppo and only 30 frames per second for Dune. Below are the sections of the photo of the 4K-TV screen, each player was connected in the maximum possible mode for it.

In the Oppo UDP-203, there is a curious function for scoring menu items. Perhaps it should emphasize the fact that the player can be used as an audio player and receiver without necessarily turning on the TV. However, it works only when navigating the setup menu, but it’s a pity. It would be nice to hear the names of folders or files that make blind navigation. Moreover, for the scoring used explicitly synthesized voice, which in theory can “read” any text, rather than individual blanks. In addition to what has been said, the number of available audio languages ​​for some reason is limited to only two, English and Spanish. This is strange, because given the small amount of text in the menu, all its contents could be fully voiced with the help of a real live announcer.

Yes, about sound. We are still with awe and respect for the position and opinions of connoisseurs of crystal sound. The word of this audiophile is final and it is not subject to protest, it is an axiom for any forum. But the article is not a forum. And to convey in words all the nuances (if any) of audio reproduction by this or that device is not possible. Therefore, we note only the purely technical aspects concerning the features of the output of multichannel and HD sound. They, of course, have long been known to professionals, but beginners may not realize all these difficulties.

Both players are equally able to output to the receiver any HDMI audio format available in the movie being played. The sound can be fed as recoded in LPCM, or in the Pass through mode, or, otherwise, RAW – this is determined in the player settings. However, coaxial and optical digital audio outputs do not have such capabilities due to the limited bandwidth: they do not output Dolby Digital Plus, Dolby TrueHD, DTS-HD High Resolution and DTS-HD Master Audio. Instead of the listed formats, players output to these interfaces an audio signal with a lower resolution, albeit multi-channel. It was a technical aspect. However, in addition to technical difficulties, there are other types of obstacles, legal. Thus, the reproduction of audio content in SACD or DVD-Audio format through coaxial or optical digital audio outputs is not possible at all because of the narrow bandwidth of these connections. This restriction has a completely artificial origin and is imposed by copyright owners. And all because the S / PDIF interface does not assume built-in copy protection. Unlike S / PDIF, this protection is available in HDMI, and this interface should be used if you want to play the specified audio formats.

In conclusion of the tuning chapter, we estimate the network capabilities of the players. The correct way to connect a stationary media player to a network is, of course, a gigabit wired connection. With him, you can get adequate results, close to those that the developer guarantees. Use a wireless connection in the 2.4 GHz band in urban conditions is almost meaningless due to the busyness of the air and, in this regard, the unpredictability of the results. The adapter installed in the player can work at 5 GHz, but its operation requires a compatible router. In addition, the use of Wi-Fi in a device that is installed in a rack and works side by side with other “fonjayuschimi” devices, it is difficult to be called a good option.

In the review of the Dune HD Duo 4K we noted the low speed of the Ethernet adapter of this player, explaining its features to SoC, which, in fact, is an updated version of the chip many years ago and is focused primarily on working with video in BD-players, and not in network storage . The speed of the corresponding adapter for the Oppo UDP-203 player is not yet known to us. But now it’s time to compare both players, as they say, to the forehead, checking their ability to “pull” from the network drive video files that have a high level of bitrate. To do this, we use the prepared files compressed by the HEVC codec and having a constant (CBR) bit rate. In order not to lose time, let’s start by playing the files with the highest possible bitrate, 100 Mbps. These files are located on the network storage, which is connected to the cable through a gigabit switch.

According to the results of the experiment to the player Oppo there are no complaints, it easily reproduces even such a “heavy” video. But Dune with playback failed – its buffer was enough for only ten seconds of smooth playback, after which the sound track disappears first, and then the skips of frames, jerks and short-term freezing began. To be fair, we note an important fact: the video being played has a constant bitrate, and this does not happen in movies (if it’s not about illiterate homemade pieces). In addition, files with a bitrate of 90 Mbit / s – just 10 Mbps below the critical level – Dune reproduces on the network without any complaints.

Unfortunately, we do not have an opportunity to estimate the maximum possible speed of the wireless network interfaces of the players due to the lack of a router that would support the new high-speed 802.11ac transmission standard. To use the same standard of the previous generation makes sense only for playback on the network of low-bit content – for example, music, or low-quality video. Despite the lack of necessary equipment, we still tried to reproduce both players with different bitrate material using Wi-Fi connection, even on the 802.11b / g / n standard. To ensure that the presence of sound during playback was visual, we placed in each frame an appropriate indicator of the audio level.

Main output: the Wi-Fi adapter of the Dune player was again unjustifiably slow (in the review of this player it was pointed out this drawback, but with the caveat: some hardware conflicts of the adapters are possible). Bitrate video, on which the player does not “stutter”, reproducing it from a network storage via a Wi-Fi connection, is only 20 Mbps. It looks all the more strange that the Oppo player, having exactly the same adapter (and not having any antennas at the same time), quietly reproduces 60 megabit video through the same router on the same Wi-Fi connection.



But in the box of abilities Dune has a good counter argument: the player is able to create a wireless access point, thereby expanding the coverage of Wi-Fi in the house. In this case, the point created by the player can have a frequency of 2.4 or 5 GHz:

Operation

Functions for playing content with the Dune HD Duo 4k player are discussed in detail in the mentioned review of the device. For this reason, we will not repeat ourselves, but focus on the similar functions of the main “culprit” of the article, Oppo UDP-203. Its main purpose is the reproduction of optical media, where the apotheosis of the opportunity is to play a new format for 4K Ultra HD discs with HDR technology (High Dynamic Range, wide dynamic range). Those users who are “in the subject” probably know the pros and cons of this technology. In the advantages of HDR-video there is a natural transfer of hues, an unprecedented juiciness of colors, a deeper black and bright white, etc., etc. – for the imagination of professional marketers, we still can not keep up. Perhaps all this is true (the author’s colleague has already made attempts to see the striking differences), but the main and undeniable effect from the use of HDR technology is the absence of visible shade boundaries on gradient fills. Most likely, every reader watched in the movies of the scene, where in the frame there is a background with smoothly changing brightness and color. For example, a clear sky. And for certain in this firmament there were noticeable “paths”, indicating boundaries of similar shades. This defect in the HDR-record, you will not see – the gradient will be smooth and continuous, like in the real sky. But in order to get such pleasure, it is not enough to have the necessary HDR-content and the player, which can decode it. The TV should also support a wide range of technologies, and until recently such models were a curiosity and they cost very inhuman money. Now, in all likelihood, the situation is gradually beginning to be corrected and HDR-TVs will become cheaper, just as it happened in the past with 3D-technology.

Technical differences between 8-bit and 10-bit video streams are not so great. When encoding video, different profiles can be used, but the Main 10 profile is used only for encoding 10-bit video.

& nbsp; HEVC 8 bit HEVC 10 bit (HDR)
Profile Main @ L5 @ Main Main 10 @ L5 @ Main
Bit depth 8 bits 10 bit

This profile with the number 10 was the main obstacle for the reproduction of this video by all players of previous generations. However, the Oppo UDP-203 is not afraid of any profiles or frame size (of course, the maximum of 4K, including the “cine-academic version” 4096 × 2160), nor the frequency. Unlike the Dune player, which is built on a fairly old processor (of course, the word “old” in general terms may seem inappropriate, but in the electronics industry, this term can be referred to as a model half a year old). No, with the bit in the Dune player everything is almost in order – the processor is able to decode 10-bit video. But the existing HDMI video output version 1.4 allows streaming only in 8-bit performance, and the processor is not able to adequately decode 4K-video with a frame rate above 30.

That’s just the maximum frame rate during playback and is the most obvious difference between the compared players. Visible – literally. Because, thanks to special video files and a camera that takes pictures of the TV screen, being put for a second exposure, you can see the result of playback. In view of the fact that 4K-video is now mostly encoded with the new H.265 codec (also HEVC), the testing was conducted exclusively with video clips compressed with this codec.

Both media players connected to the 4K-TV in the mode of automatically determining the appropriate frequency, which varies according to the frame rate of the video. Below is a table with pictures of the TV screen, where you can see the results of testing and draw the appropriate conclusions.

Oppo UDP-203
4K HEVC 24p
Oppo UDP-203
4K HEVC 25p
Oppo UDP-203
4K HEVC 30p
Oppo UDP-203
4K HEVC 50p
Oppo UDP-203
4K HEVC 60p
Oppo UDP-203
Dune HD Duo 4K
4K HEVC 24p



Dune HD Duo 4K
4K HEVC 25p
Dune HD Duo 4K
4K HEVC 30p
Dune HD Duo 4K
4K HEVC 50p
Dune HD Duo 4K
4K HEVC 60p
Dune HD Duo 4K
Clearly nowhere. Oppo in this test literally “tore” his opponent, flawlessly issuing all 50 and 60 frames per second when playing 4K-video. While Dune surrendered at the frequency of 50, convulsively duplicating or skipping footage. But all is fair, Dune even warns the user that such a file will not be played correctly.

Another question – where is it, take this content (4K 60p)? Do it yourself? Not difficult. We just need to remember that the producers of films on discs have long stopped at the “cinematic” standard, which is 24 frames per second (more precisely, 23,976, and more precisely – 23.97602397602398). Thus, it should be recognized: the Oppo player has a serious safety margin, a big backlog for the future. But whether this reserve will be in demand, it is still impossible to say. However, the first timid 60p-swallows on the market have already appeared: for example, the disc with the film Long walk Billy Linna during a break of the football match.

But back to the beginning. The “central” function of the Oppo player is the reproduction of optical discs, including new standards. You can do this either in the presence of an appropriate TV, or by adjusting the settings in a certain way. So, if the player’s settings make it broadcast 4K-video stream in the original resolution, then when you connect to a Full HD-TV (in our case – to a 1080p capture device), the player refuses to play the inserted Ultra HD Blu-ray disc. In this case, it is proposed to change the disc to another, ordinary Blu-ray with a resolution of 1080p, which is also available in the original box.

Oppo UDP-203

Approximately the same thing happens when you try to play an Ultra HD Blu-ray Disc with HDR technology on a TV without such technology: the player, realizing that it is connected to a normal 4K-TV, displays a corresponding message.

Dune HD Duo 4K

Fortunately, this does not mean that UHD disks with HDR technology can not be viewed on “regular” 4K-TVs that do not support a wide dynamic range. Playback will take place, only the data will be transferred to the TV in the 8-bit version. Of course, in this case, all the “buns” of the Blu-ray disc will remain intact: the menus, including the Quick menu, are displayed and work flawlessly. However, it would be strange if the Blu-ray player did not work with Java.

Similarly, with success, the Dune player works with ISO images of Blu-ray discs (of course, only Blu-ray with video resolution 1080, because UHD disks have not yet learned to copy). You can play not only ISO files: the Dune player recognizes the folders inside which the content of the Blu-ray disc resides and plays them in the same way as the ISO images.

Dune HD Duo 4K



Unlike Dune, the Oppo player, being out of the box, does not know how to work with either disk images or Blu-ray files, if they are not on the optical media. The player simply does not display ISO files in its explorer, and folders with Blu-ray files look like regular data folders and you can not play the disc. Well, except that one by one run MTS-files, hiding in the depth of the structure of the disk (\ BDMV \ STREAM \).

Dune HD Duo 4K

Here the position is saved by the modified firmware of the player, jailbreak. It is a special files that are copied to a regular flash drive, and it is already inserted into one of the USB-ports of the player.

Starting with such a bootable flash drive, the player “miraculously” starts to see and play ISO files, and also to play folders with Blu-ray-content like regular disks. At the same time, it does not matter where the images of disks or Blu-ray-files are – on a network drive or on a USB-flash / disk.

Dune HD Duo 4K

Here we involuntarily touched upon the issue of format support. True, in this case it was not about formats, but about containers. And the problem did not concern the technical part at all, it’s just that both players are more than in order. Both Oppo and Dune are able to decode absolutely all video and audio formats intended for final viewing or listening. The statement sounds bold and even provocative, but it is so. If you try to find fault with words, then it will not be difficult to find a video that neither Oppo nor Dune can cope with. For example, “raw” video from some professional video cameras in proprietary formats will be impossible to lose any “iron” media player. Because these formats are intended only for installation on a computer with subsequent export to standard watch formats.

Remote control of players is carried out by means of mobile devices, which are included in the same local network to which players are connected. Mobile applications are used for management. Here, Oppo traditionally outperforms Dune, paying much more attention to developing and debugging proprietary mobile software.

Finally, there is one more aspect that dramatically increases the difference in the functionality of the compared devices. It’s about embedded applications and add-ons. If the Dune player is literally stuffed with them, then in Oppo you will not find even a hint of some software that implements functionality in the field of entertainment or information. The only task Oppo – high-quality reproduction of local content, which is on optical disks, USB-drives or in a local network. Communication with the Internet in Oppo UDP-203 is limited only to the interactive function of BD-Live and for automatic firmware update.

Conclusion about comparing Oppo UDP-203 or Dune HD Duo 4K

Briefly evaluate and compare the capabilities of both devices, based on the composition and number of available interfaces. Let’s start with the video outputs. If Oppo has built-in digital video output HDMI version 2.0a, then Dune is equipped with a version output of only 1.4. What is the difference? It is essential: HDMI v2.0a allows you to output a video stream with a frame size of 4K, a frequency of 60 frames per second and – most importantly – in the extended HDR range. Probably, it is unnecessary to say that the version of HDMI 1.4 does not have such capabilities.

Next – HDMI-input. It is available only in Oppo. For what? Very simple – this player works as an audio and video receiver. Any signal fed to this input passes exactly the same processing that the content played by the player itself is subjected to. Unlike Oppo, Dune offers the possibility of processing only an audio signal, for which the player has a coaxial audio input S / PDIF. Another difference: Oppo offers multi-channel (up to 7.1) analog audio outputs, as well as optical and coaxial. While Dune makes it possible to output audio through optics and coaxial, but analog outputs are limited to stereo sound, but with balanced XLR outputs.

Wired network in both players is the same, it’s gigabit Ethernet. The built-in Wi-Fi adapters in the players are also the same and support the standards of Wi-Fi 802.11 / b / g / n / ac (however, the actual speed of these interfaces in the Dune player raises big questions).

Now USB. Here the difference is just colossal. Unfortunately, Dune provides only 2.0 ports, while Oppo has speed interfaces of version 3.0. Although, if you think about it, it would be just the opposite: the Dune player, potentially working as a 20-terabyte archive, needs a high-speed bus to copy content to internal HD. While for the Oppo player, high-speed USB interfaces are required only for a tick, because the usual USB 2.0 is abundant enough to play any current content. Internal media does not exist in the player, and the built-in explorer does not imply any file operations.



Knowing the habit of many readers to run through the eyes of only the headlines and conclusions of the articles, omitting the “body” of the review, we will summarize in one table the discovered advantages of each apparatus. It should be noted that the weight of these advantages can be different, because it depends on the individual preferences of the user. For someone, a multi-channel analog audio output requires incomparably more than the built-in Youtube service. Conversely, for someone, the TV tuner will be a hundred times more valuable than the ability to reproduce UHD Blu-ray discs.

Pros Oppo UDP-203

  • HDMI video output v2.0a
  • HDMI input, audio / video receiver function
  • availability of UHD Blu-ray optical drive
  • multi-channel analog audio output 7.1
  • USB 3.0

Pros of Dune HD Duo 4K

  • the ability to install two internal HDDs up to 10 TB each
  • a large number of applications, Internet services and plug-ins
  • availability of DVB-C / T / T2 digital TV tuner with antenna power
  • balanced XLR stereo output
  • availability of analog video output

What electronic device does without disadvantages? Let’s list them. But with the previous condition: the significance of the marked nuances can have different weight and significance.

Minuses Oppo UDP-203

  • lack of built-in Internet services and applications

Cons of Dune HD Duo 4K

  • USB 2.0
  • slow network interfaces

As you can see, the ideal player does not exist. But close to the ideal to find is not so difficult.

In conclusion, we note an important detail. Most of the functions of the players mentioned in the article, which relate to the reproduction of video or audio, software and format support, are now easy to implement in devices whose price is almost an order of magnitude (that is, ten times) lower than the cost of the devices examined. Moreover: they are already realized and exist on the market in material incarnations, just about them very few people know because of the lack of funds for advertising promotion. There are no miracles here: the natural cheapening of microelectronic components sooner or later leads to the devaluation of functions previously inherent only in devices of the extra class. However, the likelihood that a user of the Oppo or Dune trademark, being tempted by the low price of miniature but quite functional gadgets, voluntarily “jumps off” from the top level and rushes to buy a handful of cheap devices, is zero. And not only because it is untenable. In the top player, as a rule, every detail is thought through. The manufacturer of the inexpensive device saves on everything, on what can only: a minimum of material, microscopic dimensions, cheap components. But comfort – it consists of many small things. Sooner or later the owner of an inexpensive device will face some annoying trifle, which will spoil the whole picture. However, this with equal success may not happen, if the user does not relate himself to the sophisticated connoisseurs of sound or picture quality.

Video review Oppo UDP-203




Video review of Dune HD Duo 4K



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