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General speaker questions for audio and home theater.

RE: What is the minimum room size for those speakers ?




Hi
Because the drivers combine where the acoustic dimensions are less than 1/4 WL, there is no minimum distance for any of the Synergy horns. They all radiate like and produce the polar pattern of a single driver and sounds like a single driver even with your head inside the horn mouth.

Some years ago when we introduced the J-5 (the big speaker in the picture) at a trade show, for laughs we connected the 3 ranges in parallel and drove it directly from an Iphone headphone jack (no crossover or additional amplification), then playing music, we had people walk up to and into the horn, no matter where you put your head, you never hear any hint of separate drivers..
That actually has 12x 18 inch woofers, 32x 8 inch mids and 64x 1 inch hf drivers.
I found a picture on line with a person in front of it from some stadium installation somewhere, you get the idea of the size.
Size = pattern control, # of drivers = max output.

That particular speaker a J-5 (usually with some subwoofers) is used to project from the scoreboard at one end to the seats in the far 1/3 of the stadium.
I attached a link to a video with sound i took some years back at the commissioning of a stadium system that uses one of those for the "far throw" but the constant directivity makes it seamless over a large distance where the concert systems need one or more delay speakers just to project say 700 feet like in the video and sound different everywhere.

They do that because they are multiple acoustic sources, these don't because they are acoustically speaking one crossover-less driver.

https://www.dropbox.com/s/o0xlb17x8hhgekm/20140805120442.mts?dl=0

These are big because of the needed acoustic power the far seats are 700-800 feet away from the Hawkeye bird in the score board where the speaker is.

The small synergy horns are being used to mix recordings for the same acoustic reasons i described in the first post.

Last week one of the Bands was very happy with the results and even gave us a tag in their music video at the very end.
We are not a marketing driven company so things like that are pretty nice.
A Very clear music video and cool songs.

https://www.youtube.com/watch?v=a1q25yLgRSc

https://www.youtube.com/watch?v=WmeYiLP3sSs

Tom




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