Home » Audio » Speaker » Tapering--- can someone clue me in on this?
Tapering--- can someone clue me in on this? [message #22356] Mon, 25 October 2004 21:38 Go to next message
lon is currently offline  lon
Messages: 760
Registered: May 2009
Illuminati (2nd Degree)

The subject of tapering for line arrays came up a number
of days ago.


Can someone say more about it?



Re: Tapering--- can someone clue me in on this? [message #22357 is a reply to message #22356] Tue, 26 October 2004 15:06 Go to previous messageGo to next message
Jim Griffin is currently offline  Jim Griffin
Messages: 232
Registered: May 2009
Master
Yes. Power tapering is feeding less signal symmetrically to the outer (at the top or bottom of the line) drivers to contour the wavefront.

Power tapering is widely used to reduce far field side lobe levels in pro sound arrays. For near field line arrays tapering can be used to reduce sound blooming (unequal room power loading). Power tapering is best applied to the woofer line and works best for me if the ratio of the number of drivers in the taper is less than one. For example, in the Linus 2 array there are 10 mid bass drivers tapered in a 3/2/2/3 drivers feed.

My white paper explains more details.

Jim


Correction on Ratio [message #22358 is a reply to message #22357] Tue, 26 October 2004 17:46 Go to previous messageGo to next message
Jim Griffin is currently offline  Jim Griffin
Messages: 232
Registered: May 2009
Master
Let me correct my mistake in the above post. The power tapering ratio should be less than 2 to 1 for best results in my opinion.

Jim

Re: Correction on Ratio [message #22360 is a reply to message #22358] Sat, 30 October 2004 01:04 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
Messages: 18784
Registered: January 2001
Illuminati (33rd Degree)
Hi Jim,

I heard good things about the DIY gathering in Iowa from Jim Holtz. What was your favorite part of the event? How did your talk go? Do you discuss tapering in your presentation?

Wayne

Re: Correction on Ratio [message #22361 is a reply to message #22360] Sun, 31 October 2004 12:11 Go to previous messageGo to next message
Jim Griffin is currently offline  Jim Griffin
Messages: 232
Registered: May 2009
Master
Wayne,

I attended the DIY loudspeaker event in Dayton, OH that weekend. Jim Holtz and others have posted their observations about the Iowa event.

Jim

Re: Correction on Ratio [message #22362 is a reply to message #22361] Sun, 31 October 2004 13:37 Go to previous message
Wayne Parham is currently offline  Wayne Parham
Messages: 18784
Registered: January 2001
Illuminati (33rd Degree)
Silly me, I confused the two events. How was the Dayton one?

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