This is a practical review of the new UHD2000 comparing it with my trusty Z9S. In fact a friend was so nice to lend his player to me for this purpose. It is not owned by me so future testing will not be possible by myself. My use of colors: - Action Point (my to do list) - Positive market differentiator - Inconvenience open for improvement - Caveat or serious shortcoming to be fixed It builds on top of my review for the Z9S to be found here: http://forum.zidoo.tv/index.php?thr...es-hq-music-dvd-bd-and-uhd-bd-playback.48237/ For comparison the same FW v2.3.32 was used on both models. As soon as new stable FW is released by Zidoo for both models also the above experiences will be updated again to actualize it. I probably will integrate the total as a final total review for UHD2000 here. Made some space reservation for that reason as there are size restrictions per reply on this forum. Being positioned as a HiFi player special attention will be given to the audio aspects. These will be practical compared with using my USB External DAC together with my Z9S. https://www.futeko.com/newforum/index.php?topic=3868.0 A full recently updated review of that setup can be found there. The HW-box connectivity and specifications: The UHD2000 in contrary to the base model Z9S is a Full-Size HiFi component fitting nicely in a 42cm wide rack with units of other brands. It is only available in black as used by many brands of Audio/Video equipment. There are many reviews available detailed with pictures of it so I am not going to redo that here. -It looks and feels like a very solid unit with Dual HDD bays and a central front display also including 2x USB2 ports and a power switch. The total is covered with a flap. - The nice display with many icons is of high quality and big enough to be read at my viewing distance. Unfortunately the window in the mentioned flap uses a dark filter degrading the quality and brightness of the display a lot. Looks great with the flap down but once up most of the quality aspects are lost. Putting the display to low makes it almost totally invisible which is a shame. I suggest Zidoo to modify the flap with a quality transparent cover. - It also has both an UB3c and a standard USB3 port on the back, next to Audio RCA/XLR, Dual HDMI OUT, HDMI IN and SPDIF connectors. Overall it results in perfect connectivity. It really is all there. - Mainboard specs are high end too with 32 G FLASH, 4G RAM and Dual Band Wi-Fi with detachable antennas. - It is fast enough to boot (35 - 45 sec range) connected either via external SATA or via USB. Add 10 - 20 secs for detection of every additional HDD. Strange enough it takes a few seconds longer to boot than my Z9S? - HDMI-CEC is supported and has no negative side-effects. It also switches my setup to the designated HDMI port when powered on. Actual functionality will vary per setup and actual use but the basis is correct just like for Z9S. - There is a serious problem though with detecting my 2.5 inch drive powered by USB used for music. It mostly is NOT found at power-on and it may take several plugs/unplugs to get it finally going. That same drive works perfectly with my Z9S which is strange as both are running at the same FW level. A slight difference in mainboard design (powering ports up)? - With the box comes no printed/online manual just a quick setup folder. I even needed to add the limited setup assistant in the Help APP myself by copying it from my Z9S. Why is not included anymore? In fact with complex new features in HT3 and MP5 the need for a good manual is higher than ever before. - It comes with the excellent BT V8 remote. I like BT a lot more than IR and it has also some more programmable IR keys. This remote is really excellent, but would have liked it even more including a real pointer mouse function and not including just a cursor mouse feature. That mouse feature in fact is a bit hidden amongst the other special function keys. - There are many other ways to control the media players remotely: Webinterface, Zidoo Controller APP, Control4 and even a RS232 port plus Trigger port for control too. - The UHD2000 will also formally support an external ROM Drive via USB. It worked functionally for playing music MP3/FLAC, DVD and BD with a good user interface. Playing DVD/BD works well once going but Menu processing if selected is terribly slow. It also includes a CD-Ripper APP for this model more about that APP later. The chassis heat/noise and HDD bays One of the main features next to the HiFi Audio Panel are the inclusion of Dual HDD bays. Essential for a HiFi unit is that it cools adequately paired with absolute silent running. During low volume passages of music listeners don't want to hear any disturbing sounds made by either the drives or fan. This is a real challenge for the UHD2000 design as it just uses a very small fan to extract the air from the unit positioned at the back. My personal experience is the smaller the fan the nastier is the noise they typically make. The UHD2000 is no exception here just as I have seen with many STB's and Media Players. Tried different things myself like using Ultra Low Noise fans and rubber mounts resulting in some improvement. - The fan can be used in Auto or any of 3 manual positions Low/Medium High. The noise level at low is almost inaudible, (mildly) disturbing at medium and very loud at high. The most popular deployment is probably populating the bays with 2 big 3.5 inch HDD's. So tested this first. -The HDD bays include Quick Loading Handles which works perfectly in practice. HDD's can also be ejected and swapped when desired. The Noise of the spinning HDD's is perceived as acceptable. Hint: choose your HDD's on noise and heat produced not on performance for this deployment and use the spin-down timer to reduce heat/noise when not in use. - When the FAN is on AUTO the player mostly runs on medium speed with random changes to high speed. This must be temperature controlled but disappointing there is no feature to display that inside temperature measured. For listening to music this mode is regarded unusable by me. The constant changing speed adds to someone's aggravation substantially. - Changing manually to medium speed is acceptable noise wise but power hungry HDD's may become quite hot as a consequence. To be precise they may heat up to barely touchable. Using High /Auto speed settings is recommended despite the noise produced with those. A possibility to map manual fan speed control to a colored key or having it with Zidoo Controller could be handy for mixed HDD deployments. - For my own deployment I put in a 2.5 HDD using a 3.5 => 2.5 adapter (ICY BOX IB-2535) for playing music with the fan set to low. That combination worked out just fine regarding noise and also the temperature remained well under control. A SSD can be used this way too obviously but that is a lot more expensive per TByte without any real advantages. Using both slots with 2.5 inch HDD's is highly recommended when noise/heat is an element of your considerations. With case modding something should be possible to improve noise/heat. A big fan at the bottom (like some Dune had) might improve both a lot, this e.g. combined with noise absorbing (& heat conducting) padding of the interior. About the Power Supply Unit (PSU) and power consumed UHD2000 comes with an excellent Earthed PSU which is curiously not mentioned at all in the specifications list. I even need to guess it is a 12V 5A Linear PSU. A linear PSU uses a traditional transformer with a rectifier, some big capacitors and stabilizer circuits per voltage/section as needed. Here a quality ring type (toroidal) transformer is used. These are known to produce far less stray-fields and therefore reduces the amount of hum and noise in the output signal as picked up by the analog circuits. Using a superior Linear PSU comes also with some other design consequences to be dealt with: - It uses roughly 10% of energy when not in use, so an auxiliary small switched mode PSU needed to be added to deal with the standby mode (< 1W). When powered-on a relay switches on the main PSU next. A Sleep mode is therefore not available this in contrary to all other Zidoo models using a switched mode type of PSU. - Linear PSU's can't deal with very large voltage ranges (100V-240V) like switched mode PSU's do nicely. So Zidoo also implemented a voltage sensor on the auxiliary standby PSU. Using a second relay this automatically switches the main PSU to 110V and 230V voltage ranges. I have my doubts how safe/stable the auto-voltage sensing/switching is for countries with very bad 230V power provisions. Would modify it to be fixed at 230V myself when living in a region where such a condition applies. Last the power consumed measured by me: Standby is 1.2W, Startup peak 54W with dual HDD, 33W running dual HDD and 18W running without any HDD. No surprises here. For sure all values are higher than with Z9S but who really cares?