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Felt diffraction reduction advise

Never heard or tried them. Would try them on soft dome tweeters on floor stand or monitors. I have no problem with way system sounds now. Just found black wool felt in a Christmas box. Always been curious of speakers with felt with different cut out patterns. What inch thickness and pattern do I need to achieve any results good or bad? What will I hear when doing this?
paulcreed
erik_squires
16,888 posts
 
Even craft felt works, but Madisound also sells some pre-cut.

tomic601's avatar
tomic601
13,182 posts
 
Vandersteen use a deep 1/4” or so around the Model 7 MK II tweeter done, should be a photo out there somewhere.....
the cutout close to the dome is in a notched star pattern, maybe 20 cuts....

erik_squires
16,888 posts
 
Vandersteen's is deep enough to act like a bit of a waveguide.

And yes, it does help. The felt seems to reduce re-radiation directly around the tweeter enhancing the speaker's disappearing act.
roberjerman
4,319 posts
 
Same thing on my Snell Type E tweeters!
tommylion
874 posts
 
Here’s what I did with my AN-Es using jute mat from a carpet store. Works great, at least in my system/room.

https://forum.audiogon.com/discussions/audio-note-e-speaker-tweak-easy-effective-and-inexpensive-2

http://img.photobucket.com/albums/v260/TomBerry/8705A9AB-E436-4586-A811-051A068C187F_zpstuybpscn.jpe...

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