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[Dan Dollar]

Hello. I need someone to help determining wattage required for a school arena. The arena will probably be the size of the attached picture. The admins want it to bump for pep rallys and other events. How much wattage should someone expect for something this size?  Thanks in advance

[David Allred]

Hello. I need someone to help determining wattage required for a school arena. The arena will probably be the size of the attached picture. The admins want it to bump for pep rallys and other events. How much wattage should someone expect for something this size?  Thanks in advance

Wattage is an absolutely useless parameter unless you also know the efficiency ("x" dbs @ 1w @ 1m) of the speakers that wattage will be pumped in to and how many watts the speaker can handle (and at what work load).
You really need to know the location the speakers will be mounted and SPL in db's required at a certain distance (farthest wall?). 
Then how much headroom the system should have as to have a long productive live.  A system riding at it's limit won't last nearly as long.

You also need to define bump.  Is that volume, low frequencies, or both?

[Dave Garoutte]

Hello. I need someone to help determining wattage required for a school arena. The arena will probably be the size of the attached picture. The admins want it to bump for pep rallys and other events. How much wattage should someone expect for something this size?  Thanks in advance

This is one of places where Danley's shine.
Contact you 'local' dealer.

[Brian Jojade]

What you need is someone to design a system for that space.  Selection and placement of the speakers is what matters.  Efficiency of the speakers will determine how much power is needed.  Marketing numbers will determine what kind of 'watts' you need too.  Lots of products today advertise peak watts which gives a much much larger number than is really needed.

Reality is, average power will likely only be a few hundred watts at most.

[Chris Hindle]

Nice echo chamber.
You'll need a real consultant here.
Acoustical "treatments" will likely be needed before "speakers" are even looked at.....
Chris.

[Erik Jerde]

If you try and go it alone to save money you’ll probably end up with a poor outcome and end up spending more money in the long run to do it correctly.  This is a years long expensive lesson that’s very common in “budget conscious” organizations.  Be smart, that’s the real method to budget consciousness.

[Dave Garoutte]

If you try and go it alone to save money you’ll probably end up with a poor outcome and end up spending more money in the long run to do it correctly.  This is a years long expensive lesson that’s very common in “budget conscious” organizations.  Be smart, that’s the real method to budget consciousness.

Definitely a buy once, cry once situation.

[Scott Holtzman]

Hello. I need someone to help determining wattage required for a school arena. The arena will probably be the size of the attached picture. The admins want it to bump for pep rallys and other events. How much wattage should someone expect for something this size?  Thanks in advance

Has anyone thought about budget?  As many have pointed out watts has nothing to do with volume.  This is a large complex space and the sound system has to be designed to be effective.

If the "admins" are thinking a $5000 off the shelf system is going to work with the janitor installing it, run don't walk away.  They are tossing money away and the outcome will be awful.
For 50kUS you are getting closer but that may not be enough if electrical upgrades are needed and how difficult the install is.
It would not surprise me for the project to exceed 100k properly done.

[David Allred]

Can you gather the system info for what's currently in place?  Did it ever meet their needs?

[Mike Caldwell]

In a gym like in the picture if you just want/need intelligible vocal cut over the crowd noise a van full of big Atlas horns and drivers will do the trick.

Increasing the frequency response and "bump" of the system all the way to a full on concert PA that's basically what some NBA arenas have the cost and system complexity will increase exponentially with every system upgrade option.

Run away from any proposal that the first thing they do is boast about how watts they are going to put in the gym.

[ProSoundWeb Community]