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#1 2010-07-15 05:48:05
- Squeak
- Member
- Registered: 2007-02-05
External removeable faceplug/waveguide
Edit: "Faseplug" of course. Could someone please change the title?
I love my fullrangers, even my girlfriend likes them, but sometimes it would be nice to have a more even dispersion of the higher frequencies, so I can walk around the room and still enjoy the sound. I don't want to compromise on the crystal clear headphonelike sound in the sweetspot though.
So I figured the solution would be something to spread the sound, that can also easily be removed, either attatched with magnets or mounted on a swivel.
As far as I know there is two common solutions to this:
One is a butterfly like karlsonesque plate placed in front of the driver to "split" it onto two smaller drivers.
The other is putting a hard ball near the dustcap.
Which one of the above is preferable, and is there better solutions I don't know about?
Last edited by Squeak (2010-07-15 09:39:43)
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#2 2010-07-15 09:32:10
- karlsonkab
- Member
- Registered: 2006-03-21
Re: External removeable faceplug/waveguide
you could piddle with a rectangular or oval slot diffuser's width using cardboard - result may be usable - there will be tradeoffs plus a cavity resonance - start about the cone diameter minus the surround then narrow the slot in steps
BBC speaker
BBC Monitor paper http://www.bbc.co.uk/rd/pubs/reports/1979-22.pdf
PV 15 15" woofer horizontal dispersion outdoors - No lens: 
Same PV box but add oval cardboard lens. Note curves tracking better off axis
and on-axis vs 30 degrees off axis pretty much converge
Briggs 10" cabinet with slot diffusor and slot acoustic filter
Its filter choke's slots were 1/16" (saw blade width) wide
Last edited by karlsonkab (2010-07-15 09:36:16)
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