large venue speaker selection?

Discussion in 'Home Cinema Speakers' started by mudhole, Jul 7, 2015.

  1. mudhole

    mudhole
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    I am not sure this is the correct forum location...anyway

    I have a a large area that i need to set up speakers in ...roughly 80,000 cubic feet. Is there a formula for watts/ft3?, I could either use 2 large speakers next to the the projector display on the wall or disperse it into dropped ceiling tile speakers...or a mixture of both.

    the audio will be used mainly for presentations and meetings.

    I really need help on the entire solution, mic, mixer, amp and speakers, but thought it best to start with the speakers

    ANY help is much appreciated!!!
     
  2. kbfern

    kbfern
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    You need pro speakers for that sort of situation, look at JBL for a start, they do have a pro cinema range have a word with Jag who owns Epic Home cinema in Slough and see if he can offer some advice and a demo.
    Epic Home Cinema Projectors
     
  3. dogfonos

    dogfonos
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    Seems that you're requirement would be best served with a Public Address system - not something most of us on avforums have much experience of.

    Suggest you ask the same question on a forum more geared to PA and Installed systems. How about this one?

    Recording/Live Sound | The Gear Page
     
  4. BlueWizard

    BlueWizard
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    Can we start with a projected BUDGET? That frames everything. If it is £500 our advice is going to be very different than it your budget is £5000.

    Next, can you give us the actual dimensions of the room?

    Also a description of the room? Is there a stage? How high? Is the seating simply rows and rows of folding chairs or more comfortable theater seating? Have you given any consideration to room acoustics? If this is a big echo chamber, even the best PA system is not going to sound good.

    Next, what are the sources of your Audio? CD? DVD? Computer? Microphones? Etc...?

    Can we reasonably assume that there will be voice, as in a speaker talking through a PA system?

    Do you need wireless microphones, as you would need if a speaker is going to be walking around the stage. If the speaker will simply stand fixed at a podium, then wired microphone will be adequate.

    Will there be panel discussion, implying the need for many microphones, either wired or wireless? If so, how many people on the panel? Will the sit at a table facing the audience? If so, that implies several fixed wired microphones. If it will be more of a casual sofa/chairs panel, that implies several wireless microphones.

    Is there a control room, or a spot where some designated person will sit adjusting the PA as needed, or would you prefer more of a set it and forget it system?

    You will need some sort of mixer, which is why we need a full description of the range of inputs. We need to make sure the mixer has a sufficient number of the right type of channels to accommodate what you anticipate plus a few extra channels.

    The Cube Root of 80,000 is 43 feet. That gives us some sense of the size, but unlikely that the ceiling is 43 feet high. If we assume 20ft ceilings then it become 65'x60'x20'. Or it could be 40ft wide, 100ft long, and 20ft high.

    If the room is long and narrow, that either implies a larger PA, or it implies more PA speakers distributed throughout the room.

    How many people does the room hold? The more people, the more ambient noise there is. It a very quiet room, a single smaller PA system might work, but with background noise and poor acoustics, that implies either a larger PA or more PA speakers distributed.

    What are the structural issues? Do you own this space? Can you permanently install speakers? If this is a rental space that you have exclusive control over, the approach might be different. If this is a rental on an as needed basis, that implies a different more portable approach.

    Sadly ... the DEVIL is always in the details.

    Steve/bluewizard
     
  5. MemX

    MemX
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    At least if it's just presentations and meetings he won't have to worry about speccing a system that does Reference between 3-20kHz :laugh:
     

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