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Re: SPL rating affected by horn? [message #94542 is a reply to message #94541]

Sat, 02 October 2021 10:16

Wayne Parham
Messages: 18835
Registered: January 2001

Illuminati (33rd Degree)

That's exactly right. Horns with narrower patterns deliver higher SPL, and for exactly the reason you describe: Directivity.

And horns that have non-uniform directivity change the response too. That's how horns with collapsing directivity increase on-axis SPL as frequency rises, partially or fully compensating for mass-rolloff. It's also why constant-directivity horns do not compensate for mass rolloff and need "CD equalization."

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[Message index]

		SPL rating affected by horn? By: tom-m on Sat, 02 October 2021 09:51
		Re: SPL rating affected by horn? By: Wayne Parham on Sat, 02 October 2021 10:16
		Re: SPL rating affected by horn? By: tom-m on Sat, 02 October 2021 23:27

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