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Re: H290C Horn/Waveguide [message #71930 is a reply to message #71929]

Tue, 27 March 2012 07:55

Wayne Parham
Messages: 18786
Registered: January 2001

Illuminati (33rd Degree)

There is no suitable alternative to the H290, now designated H290C. The horn/waveguide properties are very specific, and it cannot be substituted without a complete redesign/test cycle. The biggest issue is the position of the acoustic center, which is affected both by the acoustic load and the depth of the device. The size and shape of the H290C are precisely set to provide the right beamwidth, loading and acoustic center.

The problem many people are facing is that Eminence discontinued the H290 horn. They were getting them from an overseas supplier that has stopped making them. We are now making the H290C horn/waveguide - and in fact, have updated the profile to have an oblate spheroidal flare profile. It is essentially a plastic version of the wood horn we've been making for years, so we could leverage the design work we've already done.

Horn/Waveguide dimensions and beamwidth

So my suggestion is to purchase the horns from us. There are other suppliers that still have the H290 in stock, but it is rapidly dwindling. Besides, our new H290C is an improved device, one that can be considered an upgrade. It uses the same baffle cutout and mounting holes, so it's an easy bolt-on replacement.

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[Message index]

		H290C Horn/Waveguide By: santos on Tue, 27 March 2012 03:48
		Re: H290C Horn/Waveguide By: Wayne Parham on Tue, 27 March 2012 07:55
		Re: H290C Horn/Waveguide By: Maxjr on Thu, 29 March 2012 13:26
		Re: H290C Horn/Waveguide By: Wayne Parham on Thu, 29 March 2012 14:22
		Re: H290C Horn/Waveguide By: skywave-rider on Thu, 29 March 2012 18:28
		Re: H290C Horn/Waveguide By: Wayne Parham on Wed, 16 May 2012 19:19
		Re: H290C Horn/Waveguide By: Maxjr on Thu, 17 May 2012 16:37
		Re: H290C Horn/Waveguide By: Wayne Parham on Thu, 17 May 2012 17:05
		Re: H290C Horn/Waveguide By: Wayne Parham on Thu, 17 May 2012 22:52
		Re: H290C Horn/Waveguide By: skywave-rider on Fri, 25 May 2012 14:50
		Re: H290C Horn/Waveguide By: Wayne Parham on Thu, 12 July 2012 08:08
		Re: H290C Horn/Waveguide By: skywave-rider on Thu, 12 July 2012 10:30
		Re: H290C Horn/Waveguide By: zheka on Fri, 27 July 2012 19:58
		Re: H290C Horn/Waveguide By: Wayne Parham on Sat, 28 July 2012 12:13
		Re: H290C Horn/Waveguide By: zheka on Sun, 29 July 2012 08:32
		Re: H290C Horn/Waveguide By: Wayne Parham on Sun, 29 July 2012 10:40
		Re: H290C Horn/Waveguide By: mantha3 on Tue, 31 July 2012 11:17
		Re: H290C Horn/Waveguide By: Wayne Parham on Tue, 31 July 2012 13:17
		Re: H290C Horn/Waveguide By: mantha3 on Tue, 31 July 2012 14:28
		Re: H290C Horn/Waveguide By: blvdre on Tue, 31 July 2012 15:35
		Re: H290C Horn/Waveguide By: skywave-rider on Tue, 31 July 2012 15:10
		Re: H290C Horn/Waveguide By: Wayne Parham on Thu, 09 August 2012 10:38
		Re: H290C Horn/Waveguide By: Maxjr on Thu, 16 August 2012 07:42
		Re: H290C Horn/Waveguide By: Wayne Parham on Thu, 16 August 2012 10:12
		Re: H290C Horn/Waveguide By: Maxjr on Thu, 16 August 2012 14:11
		Re: H290C Horn/Waveguide By: gofar99 on Sat, 18 August 2012 14:35
		Re: H290C Horn/Waveguide By: Maxjr on Wed, 22 August 2012 22:48
		Re: H290C Horn/Waveguide By: Quiet_Storm on Sun, 26 August 2012 23:28
		Re: H290C Horn/Waveguide By: Wayne Parham on Mon, 27 August 2012 08:10
		Re: H290C Horn/Waveguide By: skywave-rider on Sat, 08 September 2012 13:48
		Re: H290C Horn/Waveguide By: skywave-rider on Tue, 11 September 2012 09:24
		Re: H290C Horn/Waveguide By: Wayne Parham on Thu, 13 September 2012 09:37
		Re: H290C Horn/Waveguide By: Wayne Parham on Thu, 29 November 2012 10:54
		Re: H290C Horn/Waveguide By: Wayne Parham on Tue, 29 January 2013 21:04
		Re: H290C Horn/Waveguide By: crescendo on Wed, 20 March 2013 18:45
		Re: H290C Horn/Waveguide By: Wayne Parham on Wed, 20 March 2013 21:26
		Re: H290C Horn/Waveguide By: rkeman on Thu, 21 March 2013 14:20
		Re: H290C Horn/Waveguide By: Wayne Parham on Thu, 21 March 2013 15:28
		Re: H290C Horn/Waveguide By: Bill Epstein on Thu, 21 March 2013 08:46
		Re: H290C Horn/Waveguide By: zheka on Tue, 23 April 2013 09:59
		Re: H290C Horn/Waveguide By: Wayne Parham on Tue, 23 April 2013 10:28
		Re: H290C Horn/Waveguide By: zheka on Tue, 23 April 2013 11:03
		Re: H290C Horn/Waveguide By: Wayne Parham on Tue, 23 April 2013 11:15
		Re: H290C Horn/Waveguide By: zheka on Tue, 23 April 2013 11:20
		Re: H290C Horn/Waveguide By: Wayne Parham on Tue, 30 April 2013 13:15
		Re: H290C Horn/Waveguide By: Wayne Parham on Wed, 12 June 2013 10:45
		Re: H290C Horn/Waveguide By: Wayne Parham on Tue, 03 December 2013 16:32
		Re: H290C Horn/Waveguide - closest equiv. in 1.5" or 2"? By: tubino on Thu, 17 September 2020 14:41
		Re: H290C Horn/Waveguide - closest equiv. in 1.5" or 2"? By: Wayne Parham on Thu, 17 September 2020 23:09
		Re: H290C Horn/Waveguide - closest equiv. in 1.5" or 2"? By: tubino on Fri, 18 September 2020 06:40
		Re: H290C Horn/Waveguide By: Wayne Parham on Fri, 18 September 2020 08:38

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