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<blockquote data-quote="TJ Cornish" data-source="post: 138026" data-attributes="member: 162">Re: Stadium horn InquiryA few other thoughts now that I have more time to post:- Multiple speakers placed apart from each other will interfere, creating echoes that negatively affect intelligibility.&nbsp; Try to originate all of your sound from the same place.&nbsp; If this is not possible, try to throw from the same virtual source, and use delay to line up arrival times.- Speakers that are low or close to people will be perceived as annoyingly loud if you&#039;re trying to get any throw out of them.&nbsp; Figure out how to get them very high - 30&#039; is a good start, and if possible, place them back from the people so the sound has a chance to spread out before hitting your coverage area.&nbsp; This will greatly even out the sound levels.- 2000 people are capable of quite a bit of background noise.&nbsp; Don&#039;t underestimate the level you will need for your sound to be intelligible over the people and environmental noise.The horn and driver you linked to are pretty low cost.&nbsp; That may or may not be a good thing.&nbsp; The good thing is you can order one of each and do some testing.&nbsp; In fact, I would strongly suggest you do this before you commit to the solution. The very limited specs listed don&#039;t inspire a lot of confidence, though.Keep in mind that the OD of the horn you mentioned is 20&quot;.&nbsp; That is a good thing for pattern control (though you&#039;re going to get very little output below 300Hz, and trying to get any LF out will quickly ruin your day), but is a bad thing for storage.&nbsp; Answering a couple of your questions more directly:- You can weatherproof a conventional speaker with a plastic garbage bag.&nbsp; This is more than adequate for occasional use where the speaker isn&#039;t going to live outside year-round.&nbsp; This is probably what I would do in your situation so I don&#039;t have to buy special equipment or store large, single-application horn speakers that sound like crap for anything other than speech.- I don&#039;t know what you mean by a &quot;Band PA/Band amp&quot;.&nbsp; Amps are designed for either a fixed impedance load - 4Ω, 8Ω, 16Ω, etc. or a fixed voltage load - 70v, 100v, etc.&nbsp; As I mentioned earlier, modern amps of at least a certain size have high enough voltage potential that they can drive 70v systems directly.&nbsp; The Crown CDi series has a software switch to enable 70v operation, and as far as I know, the only thing that does is put a high-pass filter on to reduce the potential of transformer saturation.- The type of mixer makes no difference, though I would do something cheap for less gear risk - any one of the sub $100 mini mixers (Mackie, Yamaha, A&amp;H, etc.) would be fine.</blockquote>

[QUOTE="TJ Cornish, post: 138026, member: 162"] Re: Stadium horn Inquiry A few other thoughts now that I have more time to post: - Multiple speakers placed apart from each other will interfere, creating echoes that negatively affect intelligibility. Try to originate all of your sound from the same place. If this is not possible, try to throw from the same virtual source, and use delay to line up arrival times. - Speakers that are low or close to people will be perceived as annoyingly loud if you're trying to get any throw out of them. Figure out how to get them very high - 30' is a good start, and if possible, place them back from the people so the sound has a chance to spread out before hitting your coverage area. This will greatly even out the sound levels. - 2000 people are capable of quite a bit of background noise. Don't underestimate the level you will need for your sound to be intelligible over the people and environmental noise. The horn and driver you linked to are pretty low cost. That may or may not be a good thing. The good thing is you can order one of each and do some testing. In fact, I would strongly suggest you do this before you commit to the solution. The very limited specs listed don't inspire a lot of confidence, though. Keep in mind that the OD of the horn you mentioned is 20". That is a good thing for pattern control (though you're going to get very little output below 300Hz, and trying to get any LF out will quickly ruin your day), but is a bad thing for storage. Answering a couple of your questions more directly: - You can weatherproof a conventional speaker with a plastic garbage bag. This is more than adequate for occasional use where the speaker isn't going to live outside year-round. This is probably what I would do in your situation so I don't have to buy special equipment or store large, single-application horn speakers that sound like crap for anything other than speech. - I don't know what you mean by a "Band PA/Band amp". Amps are designed for either a fixed impedance load - 4Ω, 8Ω, 16Ω, etc. or a fixed voltage load - 70v, 100v, etc. As I mentioned earlier, modern amps of at least a certain size have high enough voltage potential that they can drive 70v systems directly. The Crown CDi series has a software switch to enable 70v operation, and as far as I know, the only thing that does is put a high-pass filter on to reduce the potential of transformer saturation. - The type of mixer makes no difference, though I would do something cheap for less gear risk - any one of the sub $100 mini mixers (Mackie, Yamaha, A&H, etc.) would be fine. [/QUOTE]

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