Center channel behind screen?

Discussion in 'Home Theater Projects' started by Jeffrey Beal, Jul 27, 2003.

  1. Jeffrey Beal

    Jeffrey Beal Agent

    Joined:
    Sep 9, 2002
    Messages:
    27
    Likes Received:
    0
    Trophy Points:
    0
    I am planning on getting a drop down screen with a front projection setup and I am a little perplexed about the placement of my front channel. The room is 14'x 14'with a 8' ceiling. I am planning to have a 92" screen for the room centered on the wall with my left and right channels on either side. But what to do with the center channel? I dont want to mount it way above the screen near the ceiling also I dont want to put it 2' off the floor and pull the sound stage way down. But what about behind the screen it self. Will it sound muffled and unclear? Will it make the screen shake and vibrate with the sound? Any help would be great. Thanks

    Sincerely, Jeff
     
  2. Gerry S

    Gerry S Stunt Coordinator

    Joined:
    Nov 15, 2002
    Messages:
    122
    Likes Received:
    0
    Trophy Points:
    0
    If you are going to place the center behind the screen you will need a perforated screen.

    This will add substantial cost to the price of the screen.

    Do a search on perforated screens, and you may get some feedback.

    I decided not to go with the center behind the screen because it costs so much more, and there were several complaints that the tiny little holes allowed too much light to pass through, effecting picture quality.

    -Gerry
     
  3. MikeWh

    MikeWh Second Unit

    Joined:
    Mar 3, 2003
    Messages:
    407
    Likes Received:
    0
    Trophy Points:
    0
     
  4. scott>sau

    scott>sau Stunt Coordinator

    Joined:
    Jul 1, 2003
    Messages:
    190
    Likes Received:
    0
    Trophy Points:
    0
    Jeff, Like the gentleman said, MicroPerf screens are more, but, but they are worth it. Acoustically transparent screens (MicroPerf) heightens the HT experience by allowing the center channel speaker to be placed directly behind the screen just like in a professional cinema or sound mixing stage. Since the sound is now coming from behind the image, the audio cues are perfectly aligned with the visual action on the screen. This is important since much of the sound track comes from the center speaker. I will describe three scenario's and I may later, (if I can find them) post three pictures of choices you could make for center channel and main channel placement with your screen.
    1) LCR, (left, center, right) positions placed at the bottom of the screen, (tweeters placed up). This will give you good cinematic sound and more even panning.
    2) L and R, (mains) height and alignment at ear level. The center in this mock up would be below the L and R. All speakers with tweeters up. The bottom of the L and R aligned with the bottom of your screen.
    3) For best cinematic sound, using the THX-approved perf screen, the L, C, and R placed behind the screen, and share the same height, alignment, tow and angle. Stewart makes these screens. In the final analysis, ask yourself how long you will have this home and theater. If you plan on staying for good, the perfed screen is best.
    www.stewartfilm.com
    Hope this helps
     
  5. Simon SPYTHON

    Simon SPYTHON Auditioning

    Joined:
    Jul 27, 2003
    Messages:
    2
    Likes Received:
    0
    Trophy Points:
    0
    perforated screens are expensive, you may also want to modify the dimensions of your room if practical as a 14 by 14 by 8 foot room is not a good shape, square rooms behave badly due to reflections and null room nodes (especially at low frequencies)
     
  6. Jeffrey Beal

    Jeffrey Beal Agent

    Joined:
    Sep 9, 2002
    Messages:
    27
    Likes Received:
    0
    Trophy Points:
    0
    Thanks alot for the info, I have been to the stewart screen company's web site and researched a little more about screen's. I will let you know what I decide to do when the time comes and what the results are thanks and take care all. Happy H.T. To all


    Sincerely, Jeff
     

Share This Page