Free Guide · Home Theater · San Antonio
The room, the seats, the screen, the speakers and the wiring, in the order we plan them. From KZ Audio & Video, building home theaters in San Antonio and the Texas Hill Country since 1999.
The Short Answer
Plan a home theater in this order: the room, the seats, the screen, the sound, the wiring, and the gear last. Decide first whether it is a dedicated room you can darken or a media room that shares space with the house. Then set the seating, because the distance from the seats to the screen wall sets the screen size: for a 4K picture, sit about 1 to 1.5 times the screen's diagonal away. Pick a projector if you can control the light and a large TV if you cannot. Choose the surround format (5.1, 7.1 or Dolby Atmos) and the speaker types: in-wall and in-ceiling for a clean dedicated room, on-wall, bookshelf or tower where the walls stay closed. In a new build, the low voltage wiring goes in before drywall, and the speakers, projector and screen go in after. Finish with dimmable lighting, simple control, and calibration of the picture and the sound.
The order matters more than the budget. Get it right and a modest system feels like a real theater. Get it wrong and the best gear still feels like a TV in a spare room.
The Plan
The room decides more than any single piece of equipment. Before anything else, get honest about the space.
Your seating layout drives the screen size, the speaker placement and the whole design.
For a 4K picture, the sweet spot is a seat about 1 to 1.5 times the screen's diagonal away. A seat 10 feet (120 inches) back works with a screen of about 80 to 120 inches.
Neither is better. It depends on your room, and the right answer starts with your lighting.
Sound is where the experience actually lives. Good sound makes even a modest screen feel cinematic.
Step 6: Speaker Types
The sound format tells you how many speakers. The speaker type tells you how they live in the room. There are five, and most theaters mix two or three.
Built into the wall and flush, with a grille you can paint to match.
Where it goes: Front left and right at the edges of the screen wall. Side surrounds in a living room at 6 to 7 feet high.
Best for: Most dedicated theaters, because nothing sits on the floor or a shelf.
Built into the ceiling.
Where it goes: Dolby Atmos height speakers about 45 degrees in front of and 45 degrees behind your main seat, not straight overhead.
Best for: Atmos, plus music in kitchens, covered patios and bedrooms. Upward-firing Atmos speakers are a compromise when the ceiling cannot be opened.
A slim speaker that hangs on the wall surface, so there is no cutout.
Where it goes: The same spots as in-wall. The wire still runs inside the wall to each speaker, so it needs the same prewire.
Best for: A clean look without cutting the wall. One of our Stone Oak theaters runs Martin Logan on-wall speakers.
A compact box speaker on a stand, shelf or cabinet.
Where it goes: Front left and right about 3 to 6 feet from the center of the screen.
Best for: Rooms with no wall work, and systems you may move or upgrade later. It takes shelf or floor space.
A tall speaker that stands on the floor.
Where it goes: Placed like a bookshelf speaker, 3 to 6 feet from center.
Best for: Rooms with floor space on both sides of the screen. The bigger cabinet usually plays deeper and louder than a bookshelf speaker from the same line.
A dedicated theater: in-wall and in-ceiling, so nothing clutters the room. A media room or living room: in-wall or on-wall up front, in-ceiling for Atmos. A room you cannot open up, or a system you plan to take with you: bookshelf or tower. Whatever you pick, keep the center channel from the same family as the left and right speakers, so a voice sounds the same as it moves across the screen. More on placement: where surround speakers go.
Finish the Room
This is the difference between a room with a big screen and an actual theater.
In a new build or a remodel, the low voltage comes first: speaker wire, network and the wire path to the screen go in at rough-in, before drywall. The speakers, projector and screen go in after the walls are finished.
A theater you cannot easily operate is a theater nobody uses. The goal is one button that dims the lights, drops the screen, starts the projector and plays the movie.
Out of the box, no projector, TV or speaker system is tuned to your room. Calibration adjusts the picture (color, brightness, contrast) and the sound (levels, distances, room correction) so the system performs the way it was designed to.
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Screen & Display
For a 4K TV, sit 1 to 1.5 times the screen diagonal away: a 65-inch at 5.5 to 8 feet, a 75-inch at 6.5 to 9.5 feet, an 85-inch at 7 to 11 feet. Full chart inside.
Read the full answerMultiply your seating distance in inches by 0.84 for the ideal 4K screen diagonal. At 10 feet from the screen, that is about 100 inches. Chart by distance inside.
Read the full answerYou need 1,000+ nits peak brightness and anti-glare coating. QLED beats OLED in bright rooms. Specific models and placement tips inside.
Read the full answerOLED wins in dark rooms (perfect blacks, infinite contrast). QLED wins in bright rooms (higher brightness, no burn-in risk). Full breakdown inside.
Read the full answerProjector wins for dedicated dark rooms with 100"+ screen at lower cost. TV wins for bright rooms, casual spaces, and simpler setup. Full comparison inside.
Read the full answerNot completely, but ambient light kills contrast. A laser projector handles moderate light better than a lamp. Specific lumen and room condition guide inside.
Read the full answerSound
Front L/R: 22–30° off-axis, ear height. Surround: 90–110° to the side. Rear: 135–150°. Atmos height: 45° up from listening position. Full diagrams inside.
Read the full answerSoundbar for clean looks, simplicity, and bedrooms. True surround for dedicated theaters, large great rooms, and serious movie watching. Decision guide inside.
Read the full answerYes, if you have in-ceiling speaker access. The overhead sound layer is genuine, not a gimmick. When it's overkill and when it's worth the cost, inside.
Read the full answerA $300 soundbar beats any built-in TV speaker. A real 5.1 system is in a different category. Options ranked by budget and impact inside.
Read the full answerAbout These Answers
Every answer here comes from 20+ years of designing and installing home theater and AV systems in real homes. Kelly Zauber has been in the audio business since 1999. The numbers, formulas, and recommendations on these pages come from what actually works in the field, not from spec sheets.
KZ Audio & Video serves San Antonio, Stone Oak, Boerne, Helotes, Canyon Lake, New Braunfels, and the Texas Hill Country. About KZ →
From the Field
In one living room we wired for surround sound, a radio station came through the speakers every time the receiver was on, even with it set to the TV input. It sounded like an AM station, and an AM radio tower stands just outside that neighborhood. In another house there, our tone tester (the tool we use to trace wires) picked up a radio broadcast every time we pressed its button. Yet that house, which we believe sits a little closer to the tower, ran surround sound with no trouble.
Nothing we tried stopped it. So we changed the system instead of fighting the house: a Sonos soundbar with Sonos rear speakers, surround sound with no receiver at all. That ended it.
In another home, an older stereo with two tower speakers picked up interference on the radio whenever one under-cabinet light was on. Those lights are low voltage, and their transformer sat in the attic, where the speaker wires also ran. When the owner streamed music through the same stereo, using a streaming device we added, the noise never showed up. Only the radio did it, and only with that one light on. Clip-on chokes on the speaker wires did nothing there either. The fix was simple: leave that light off while the radio is on.
The lesson: in both houses the clip-on chokes did nothing. What worked was a different system in one and a light switch in the other, not a family living with the noise.
A Sonos soundbar and Sonos rear speakers: surround sound with no receiver in the room.
Every room is different. Free in-home consultation: we come to you, measure the space, and give you a straight answer and a written quote. No pressure, no obligation.
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