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Re: 9π midhorn, perhaps [message #51321 is a reply to message #51319]

Wed, 08 August 2007 09:40

Wayne Parham
Messages: 18730
Registered: January 2001

Illuminati (33rd Degree)

Yes, midhorns have to be fairly long. Their length should be at least 1/4λ of the cutoff frequency. The 9π midbass horn, for example, is 32" long. That will work down to about 100Hz. You can see from the Hornresp model, that's where it starts to roll off.

http://www.pispeakers.com/misc/9Pi_Midbass_Model.gif

9π Midbass Hornresp input screen

http://www.pispeakers.com/misc/9Pi_Midbass_Response.gif

9π Midbass SPL response

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[Message index]

		what design can i throw 8 jbl 2206J's in? By: Vincent Molino on Tue, 07 August 2007 10:58
		9π midhorn, perhaps By: Wayne Parham on Wed, 08 August 2007 09:24
		Re: 9π midhorn, perhaps By: Vincent Molino on Wed, 08 August 2007 09:27
		Re: 9π midhorn, perhaps By: Wayne Parham on Wed, 08 August 2007 09:40
		Re: 9π midhorn, perhaps By: Vincent Molino on Wed, 08 August 2007 09:45
		Re: 9π midhorn, perhaps By: Vincent Molino on Wed, 08 August 2007 09:47
		Push-pull versus shorting rings By: Wayne Parham on Wed, 08 August 2007 10:08
		Re: Push-pull versus shorting rings By: Vincent Molino on Wed, 08 August 2007 10:16
		Re: Push-pull versus shorting rings By: Wayne Parham on Wed, 08 August 2007 12:14
		Re: 9π midhorn, perhaps By: Vincent Molino on Sun, 19 August 2007 18:30
		Horns in groups, radiating into constrained space and room modes By: Wayne Parham on Mon, 20 August 2007 09:18
		Re: Horns in groups, radiating into constrained space and room modes By: Vincent Molino on Mon, 20 August 2007 09:21
		Using Hornresp to model a midbass horn By: Wayne Parham on Mon, 20 August 2007 10:15
		Re: Using Hornresp to model a midbass horn By: Vincent Molino on Mon, 20 August 2007 10:20
		Re: Horns in groups, radiating into constrained space and room modes By: Vincent Molino on Mon, 20 August 2007 09:31

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