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The MLP is critical, as it determines speaker location based on specific angles. It’s important to note that the center channel and the left and right channels are a constant and thus do not change based on 5.1, 7.1 or any immersive audio formats. Don’t think about getting a home theater system without a subwoofer. Subwoofers provide the low frequency bass that creates the rumbles of the jet engine in Iron Man or freeway bridges collapsing in Die Hard 4. THX recommends getting the biggest subwoofer that your living space and budget will allow.

In the world of THX Certified speaker systems, a 12-inch or 2×10-inch subwoofers is a minimum requirement. You need to make sure that the box speakers you purchase are actually designed for wall mounting. A wall creates an acoustic boundary that reflects low frequencies . If you mount traditional box speakers the result could be a very bass heavy sound. If you prefer to buy all of your home theater components in one stop, then you should consider an Integrated System or “Home Theater in a Box” . These “all-in-one” packages include speakers, subwoofer and an AV receiver.
Remember THX Reference Level?
First of all, you need to have complete light control for a projector to be a better option than a direct-view TV. I would recommened you to search on AVSForums you would get plenty of information. For a long time i am fan of BenQ projectors for their excellent picture quality .
I plan to build the back row starting around 3′ from the back wall so probably sitting 16′ from screen for the back and maybe 10′ for the front row. I had 150″ screen in mind since the room is pretty wide but based on the seating distance, I’m getting 130″ for max screen size. Do you think the better compromise is to go with a bigger, 150″ screen since room is wide or go with smaller 130″ screen since room is too short? Or maybe even be more drastic and change dimension of room to make it a bit more narrow (19′ x 13′ maybe) if that is more ideal for a theater room? Also lastly do you have any suggestions for short throw projectors ideally under $2k? I have a beam that hangs about 1′ down right down the middle of the room at around 9′.
Why does rotating the speakers not impact the results?
Thanks so much for all the details you have on this site, it is a huge help! I’m just starting the process of planning out my basement build with a theater room and have up to a 19′ x 19′ space I can dedicate to it. I see you have a 13′ x 22′ room with a 123″ screen but you mentioned somewhere that you sit 11′ from the screen. Is that your first row and your back row is all the way back at around 22′ from the screen?
The bigger the screen, the dimmer the image, and every row will suffer if the image is not bright enough. Based on the limited information, my initial guess is your screen should be 135-inches max, 120-inches minimum. It depends on your seating distances and how bright you want your screen to be. I suggest putting some numbers into the Calculator and seeing what it tells you. However, in general, I tend to think that Screens larger than 135 inches diagonal result in images that are Not bright enough. You will need an AV receiver to experience surround sound.
Calculate the SPL at a known distance with a known amplifier power
If you want to watch movies, TV or play games in surround sound, then you should consider a 5.1 or 7.1 surround sound system. If you are looking to improve how your music sounds in your bedroom or desktop, consider a 2.1 or 5.1 multimedia system. A good rule of thumb is to divide your screen size by .835. This will give you the ideal maximum gap between your couch and your 4K set. THX can help you optimize audio and video for anywhere from a cozy nook to a fully tricked out home theater. Regardless of room size, your entertainment experience should be the best one possible.
The Internation Telecommunications Union standard ITU-R BS. 775defines the layout for 5.1 surround configurations. The CTA/CEDIA CEB-22 Home Theater Audio Recommended Practice, written jointly by the Consumer Technology Association and CEDIA, define 7.1 surround sound configurations. One of the questions that arises for home theater enthusiasts is “where exactly should I place my speakers?
You’ll have huge benefits from OLED in terms of black level, contrast ratio, color accuracy, and all other aspects of picture quality. For the resolution aspect specifically, you may not be able to perceive ever possible detail of a 4k image, but that’s not what’s most important for picture quality. Unless you want to spend more and have space for a bigger screen, you’re setup is probably ideal for your situation. Hello, I am planning for 5.1.2 home theatre setup with 50″ 4k UHD setup.

Sound is fifty percent of the entertainment experience. Great sound can bring out the power of high definition video. Speaker placement is essential to experiencing the true impact of movies, music and games. THX offers speaker setup and positioning tips for immersive, 7.1, 5.1 and desktop speaker systems. The size of your speakers make a difference in performance.
The second row is fine at 19-feet, just make sure it’s high enough to view over the first row. Mo, I think a screen in the range of 130-inches is about right for your room. The images tend to not be bright enough for bigger screens. I wouldn’t make the room narrower just to have the screen reach wall-to-wall. I wish my home theater room were wider to accommodate more walkway space and to feel a bit more open.
The process may have seemed complicated or tedious, but once you get it, it is straightforward, yet highly accurate. The process for determining rear speaker placement is very similar to the front left and right speakers, with the only difference being the angles. As stated early on in this article, the angle range for rear speakers is between 130° and 150°. Often, rear speaker placement is merely aligning the left and right rear speakers with the left and right front speakers. The first step for identifying speaker placement is establishing the main listening position . For home theater, center the MLP on the short wall and locate it a minimum of 18” behind the centerline, as shown in Figure 1.
Hi Jay, There is no reason you can’t use a projector and screen in a room that’s 12 feet wide, but there are additional considerations. In looking at this example, with the center speaker in the exact middle of the wall, the left speaker should be 67.1” away from the center channel. The right speaker should be precisely the same distance in the opposite direction. This page displays distance with Directions Map between Dinkelsbuhl and Rothenburg ob der Tauber . THX Certified integrated systems ensure you don’t sacrifice power or performance for this convenience. For specific direction please consult with a THX Certified Installer.
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