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Re: The DR250a [message #16372 is a reply to message #16371]

Tue, 13 April 2004 06:25

Bill Fitzmaurice
Messages: 335
Registered: May 2009

Grand Master

The design is a front loaded 'W' folded horn, loaded with a ten inch woofer. Overall size is about 7 cu.ft., weight 35 lbs, intended usage electric bass/keyboards/PA. The visible drivers are tweeters arranged as two vertical arrays in a cross-firing configuration. This gives 45 degree off-axis horizontal dispersion within 3dB of on-axis SPL and 120 degree total horizontal dispersion within 6dB. The trade off to get this is a falling response above 8kHz, but in pro-sound applications this is not problematic.

Link attached to SPL chart.

http://hometown.aol.com/fitzmauricew/myhomepage/photo.html

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[Message index]

		FINISHED basshorn plans! By: Adrian Mack on Thu, 08 April 2004 22:06
		Re: FINISHED basshorn plans! By: Wayne Parham on Thu, 08 April 2004 23:01
		Re: FINISHED basshorn plans! By: Adrian Mack on Thu, 08 April 2004 23:17
		TEASER By: Wayne Parham on Fri, 09 April 2004 00:34
		Re: TEASER By: Adrian Mack on Fri, 09 April 2004 10:24
		Re: TEASER By: Wayne Parham on Fri, 09 April 2004 15:11
		Re: Now I have to win those E120's By: BillEpstein on Fri, 09 April 2004 14:56
		Re: Now I have to win those E120's By: Wayne Parham on Fri, 09 April 2004 15:15
		A heretical tip from a heretic. By: Bill Fitzmaurice on Fri, 09 April 2004 06:02
		Re: A heretical tip from a heretic. By: Adrian Mack on Fri, 09 April 2004 07:35
		Re: A heretical tip from a heretic. By: Bill Fitzmaurice on Fri, 09 April 2004 15:03
		Re: A heretical tip from a heretic. By: Wayne Parham on Fri, 09 April 2004 16:16
		pics dont show up..... By: Adrian Mack on Fri, 09 April 2004 19:09
		Re: pics dont show up..... By: Wayne Parham on Fri, 09 April 2004 22:50
		Re: pics dont show up..... By: Adrian Mack on Fri, 09 April 2004 23:58
		Re: A heretical tip from a heretic. By: Bill Fitzmaurice on Sat, 10 April 2004 07:29
		Re: A heretical tip from a heretic. By: Wayne Parham on Sat, 10 April 2004 15:24
		Round horn bend sim By: Bill Fitzmaurice on Sun, 11 April 2004 07:33
		Two illustrations By: Wayne Parham on Sun, 11 April 2004 14:57
		That's logical. By: Bill Fitzmaurice on Sun, 11 April 2004 15:23
		The DR250a By: Bill Fitzmaurice on Mon, 12 April 2004 21:23
		Re: The DR250a By: Wayne Parham on Mon, 12 April 2004 23:40
		Re: The DR250a By: Bill Fitzmaurice on Tue, 13 April 2004 06:25
		Re: That's logical. By: John Sheerin on Tue, 27 April 2004 06:05
		Thanks for the input By: Bill Fitzmaurice on Tue, 27 April 2004 15:00
		Re: A heretical tip from a heretic. By: Adrian Mack on Fri, 09 April 2004 19:44
		Re: A heretical tip from a heretic. By: Ron S on Wed, 21 April 2004 00:19
		Re: A heretical tip from a heretic. By: Adrian Mack on Wed, 28 April 2004 03:37

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