Optoma UHD38x Bright, True 4K UHD Gaming Projector | 4000 Lumens | 4.2ms Response Time at 1080p with Enhanced Gaming Mode | Lowest Input Lag on 4K Projector | 240Hz Refresh Rate…

7 reviews for Optoma UHD38x Bright, True 4K UHD Gaming Projector | 4000 Lumens | 4.2ms Response Time at 1080p with Enhanced Gaming Mode | Lowest Input Lag on 4K Projector | 240Hz Refresh Rate…

1. 

   Rated 5 out of 5

   T Kevin Woodford – November 7, 2024

   Projetor muito top, excelente aquisição!

2. 

   Rated 5 out of 5

   Mr Engr – November 13, 2024

   Update: I left my original review below for Optoma fans to read. As for me, I had a problem almost the same day that I wrote the review. The projector started flickering in monochrome colors and did not respond to the remote to turn it off. It turned off on its own after about a minute. Then the blue & red LEDs for status began blinking together to form “purple”. I had to disconnect the power cord after letting the lamp cool to get the unit to restart and it did. I looked to see if others had a similar problem on forums. A few people did and one guy suggested blowing out the lamp compartment with compressed air. That did NOT sound like a good idea so I contacted Optoma. The tech was very brief and curt in his reply. He told me to press “sync” if it happened again. I looked that up since I recalled “sync” only helping with 3D issues and this had nothing to do with a 3D Blu-ray disc. This happened again several times and after an additional attempt at getting a reply from Optoma support I finally decided to return the unit. I had been reluctant to switch from LCD to DLP technology originally but reviews seemed enticing. Wish my experience had been better. Maybe this was just a bad unit as noted in at least one other review but the support was so poor I did not want to continue down that path. My previous experience with a SONY and an EPSON projector did not involve service issues of ANY kind for more than 8 years for either unit. Note that this unit is only about one month old as I write this update. Hope someone at Optoma learns from this review.

   If you need a short throw projector or want to move the projector often keep looking. My review will only cover this projector in a dedicated home theater with no windows and a 120 inch fixed screen with plenty of length and height for projector and screen placement. This is my third projector with the first being a 1999 model Sony 720p unit that cost $6,000. The second was the much-lauded Epson 8350 3-LCD and 1080p projector that cost about $1000. (This unit is about the same price corrected for inflation.) The built-in speaker is about what you would expect but why would someone create a dedicated home theater and not include at least a decent 5.1 surround system? Here is why I bought this projector after considering about 20 from four manufacturers. The picture is sharp, crisp and has much more color saturation than my previous projector. I have native HDR without settling for 1080p resolution units that are “compatible” and able to process HDR input. The HDR is manipulated to make it specifically function with this unit according to reviews and the results seem good as you will see from my sample snapshots taken with a Motorola Moto G Power phone that has a good but not great camera. The picture mode is set to Cinema as recommended in reviews and brightness is Eco and that works well in a dark room. Any additional brightness would cause eye strain in my opinion. Color saturation seems very good in this mode to me and is miles ahead of my previous projector. The images are free of rainbow effect that some people associated with DLP. There are no screen hot spots unlike what I encountered in some bright scenes with the Epson. So far, all action shots seem very smooth but I have not watched football as of yet. Where I always noticed jutter with the Epson when the credits roll there is a slight hint still there but I have to look for it. Credits with small print are much more readable. I did increase brightness and contrast AFTER taking the shots above but only by a couple of points and far from a major increase. This was as a matter of curiosity almost as much as any perceived necessity. The first picture, from TAXI, is from an old 4:3 DVD that is not Blu-ray and it was upscaled dramatically. The DVD player is a SONY UBP-X700 connected over a good HDMI cable 30 feet in length. The rest of the pictures are from Life in Color (4k & HDR) and played through a Roku 4k/HDR 8310X stick since I don’t have my 18Gbps cables for input from my DVD yet. My screen, for now, is an off-brand, inexpensive-but-surprisingly-good outdoor unit mounted in front of my $1100 21-year-old Da-Lite fixed screen that has seen better days. It supposedly has a 1:1 gain so consider the image quality with the projector settings + the screen properties. The center of my lens is within 1/2 inch of the 13 ft – 10 in calculation that leaves the lens adjustment centered between left and right adjustments. Also, the lens center should be 3″ above the top of your screen’s final white edge for ceiling mount and 3 inches below for an upright mount at floor level. I spent less than 10 seconds focusing the lens with text on the screen and I am pleased with the results. Note that the Optoma calculator yields the shortest throw for a given image size and then shows the total amount back from there that will work for the lens. That means you need to divide that max offset by 2 and add the result to the dimension shown to get the ideal location. Don’t forget to also add the offset between front of projector and mounting screws for your ceiling mount. I used the back 2 screws and that added another 8.5 inches as I recall to that 13-10 dimension. I took time to calculate all this because the most technical reviews said that using keystone and offset corrections results in small-but-measurable picture distortions. My images seem clear to my eyes over all the way to the corners of the screen. In summary, it took me several days to come up with my choice but once I put my must-haves at the top of the list and checked again in my mind how important those were, I came up with this choice. Btw, I did consider another 1080p projector based upon some discussions but decided this was the way to go and I am very glad I did. Keep in mind that I cannot comment on reliability or Optoma support since I have had this unit less than a week.

3. 

   Rated 5 out of 5

   jose nilson r.da silva – November 16, 2024

   I’m coming from an Electrohome 4100 (VGA) CRT, BenQ PB6100 (VGA), Optoma GT750 lamp-based 3d gaming projector (720P) lineage. I’ve projected on everything from makeshift dollar store shower curtains to elite screens. So I’ve seen bad and great and used these machines for thousands of hours for various purposes. 🙂 My most current screen is a 180 inch Elite. / 4.5 Meters / 15 well pedicured Feet of awesomeness with maybe 1 – 1.5 gain!
   The most recent machine, the Optoma GT750 was my first foray into 3d. It did it extremely well. I put 4400 hours on the *second* lamp with some dark room viewing life left. It was pretty solid for what it did. I was happy until the last moment but just needed an upgrade as better resolutions are available along with new technologies. Laser and LED have had my attention for a while so thanks to Amazon for their great return policy and Optoma’s recent 30+% sale, I jumped in to a “budget” model to start. I figured given the new tech, how could it be worse? SO far? After just a few days? BLOWN AWAY. Bright! CRISP! QUIET! I’ve got the Laser at 75% level with the lights on and everything looks fantastic. Lights on performance is deeply affected by the screen you use and light bleed from ambient surroundings is inevitable for the most part. But it is hardly noticeable here! I’m still awaiting the DLP-Link3d glasses to arrive to test that feature, but so far, soooooo good. The GT750 I used before uses an external 3d sync module and custom RF glasses that sync similar to blutooth. Each pair is roughly $100 USD. DP-Link uses a sync frame embedded in the video to control shutter timing. Similar optical characteristcs, however, and a LOT cheaper. I’m getting them for about $25 each. I will review the 3d performance later. I’m really hoping it is at least as good as what it was with the 750.
   I was a little nervous about the external power brick but it is high quality, thin and pretty light, a lot like the DELL laptop supplies 5 or 10 years back. Since I have the projector upside down on the ceiling, it lays on its base and held down with a little zip tie magic. This projector uses MUCH less juice, so a power brick makes perfect sense. And with how weird things are these days with power interruptions etc, I actually feel better about the power source being external & replaceable. We had a surge or two here that have zapped computer ATX supplies etc in the past.
   It’s only been a few days but I have no buyers remorse as of yet, despite the much higher price over the last generation lamp-based devices I had. The picture is simply unbelievable to me! Perfectly rich color reproduction and overall brightness.
   I was expecting to just pop the GT750 off and pop this one on. Nope. The mounting bolt pattern required adjustment of the mounting arms (5 minutes) and 3 new VESA screws. The mounting screws from the 750 will not work. You need 3 M4- .70 X 10 VESA style machine screws to mount. Luckily I bought an extra bag when I was mounting my monitors to my desk stand. Incredibly, I had to change the mount location CLOSER to the screen by about 2 feet!!! This blew me away even more. This thing is seriously short throw.
   On a 15 foot 16:9 screen, at 75% power, in ambient light this thing is amazing to me on a 15 foot screen.
   I do wish there was more adjustment available in terms of trimming the excess off / blanking the sides of the screen where it bleeds outside the screen but this is more due to my poor set up. I could move it closer to take care of that, which I will when I finish my studio / theater room later this season. The 750 could cut the image on the sides to eliminate any of that.
   Again, it’s been less than a week but in that week we watched a half season of “Lost” and the first season of “3 Body Problem” with incredible results. It was a lot of money ($2500) coming from the old Optoma GT 750 ($800), Canuckistanian Dollars, but it is worth every penny so far. I will report back after a 3-D weekend (Ready Player 1, Avatar 2 etc) maybe in a month or so.

4. 

   Rated 3 out of 5

   Noel Murphy – November 16, 2024

   Esperaba mucho más ya que ví muchos reviews donde lo recomendaban pero lo tive que devolverl porque proyectaba una mancha verde en un a esquina pero la calidad de imagen queda a deber y la confirmación para intentar calibrar la imagen es es algo complicada

5. 

   Rated 5 out of 5

   Jesus F. – December 3, 2024

   Es un proyector muy fácil de instalar y de configurar. Imágenes claras y muy bonitas. Yo lo recomiendo y mas y si encuentras en menos de 20,000 pesos mexicanos. Súper oferta. Óptoma es una marca de calidad.

6. 

   Rated 5 out of 5

   Mr Engr – December 13, 2024

   I was replacing an Infocus SP7205 projector (720P picture quality) from 2004. Wow, what a difference. I was saving up to actually purchase an Ultra Short Throw Optima projector but the one I had planned on purchasing was discontinued. I already had some wiring from the old projeector in place but had to run a high-speed HDMI cable to the projector location to get the best quality.

   Man, and this projector projects picture quality. I went back and forth as to which model to purchase because my old projector was 13 feet from the screen in my home-theater. Most projectors have a shorter throw so I wasn’t sure if I could use this. My basement has about a 3 foot bulkhead just behind the seats and the old project was at the back of te bulkhead plus it had more of a zoom to set the size to the screen. So I wasn’t sure about the distance. Figured I would get this, try it, and if it didn’t work, I could return it. Plus this projector was less expensive that the Ultra Short Throw.

   So I received the projector and couldn’t wait to hook it up and see the quality. Picture was perfect. I was able to attache a ceiling mount (not included) to this unit and mount it upside-down on the ceiling. Had to adjust for keystone and I was just amazed. I’ve had it for a couple of months now and still, every time I turn it on I think to myself, “AMAZING”.

   Brightness is great even with ambient light. Plenty of adjustments for whatever you need. Just make sure to get a high-quality cable. I needed a 25 foot cable and wanted to make sure the signals were strong enough when they got to the projector. True 4K.

   The only thing that I wish was a little better is that the remote needs to be pointing directly towards the projector. Te senso on the projector requires that the remote be pointing directly at it. This is a tiny issue since you only need the remote to turn it on/off (after initial setup).

   I couldn’t be more pleased with this purchase and I think anyone who purchases this will undoubtedly be happy with the results.

   Way to go Optoma.

7. 

   Rated 5 out of 5

   Jose luis – January 13, 2025

   Devo instalar na primeira quinzena de janeiro. Só liguei e fiz um teste. Ok