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24.13.230.11
In Reply to: RE: Which make me doubt the 93db/? specification. And BDS is going to kick in pretty early as well. posted by Timbo in Oz on July 02, 2012 at 19:34:43
“It's a clever bending wave design isn't it?”
It is cool! What it reminded me of was a Quad esl63 which if one only thinks of the surface, produces a segment of a spherical wave front also. Where the quad drives concentric rings of ESS elements driven sequentially with electronic delay, the manger does it with a wave progressing outwards physically.
While it was superb in “time” having one location over a wide frequency range and so could reproduce a complex wave shape like a square wave or musical signal, it also had a rapidly increasing distortion as the frequency fell. If I remember at 90dB at 1 meter, it had 5% THD @ 200Hz.
On the other hand, as part of a two way system it could be very good.
I would leave off the heating duct diffuser / fan blades, you have something that radiates nearly perfectly to begin with, put it naked on a large flat baffle I say haha .
Best,
Tom
Follow Ups:
Tried to find a pic of Dr,Manger's diffuser and was unsucessful, but I did find this.
A real estate company named Diffusion had a "manger" set-up in a Nativity display to boost holiday rentals!
http://www.prweek.com/uk/features/1127515/Digital-Nativity-theme-boosts-room-rental-site/
I'd bet that hay is good for room treatment...
:-)!
Now I'm a a nerd, for knowing that waveforms matter - to music.
No folks it's got to be 'exciting' and JR approved.
Note that a post in response is preferred.
Warmest
Timothy Bailey
The Skyptical Mensurer and Audio Scrounger
And gladly would he learn and gladly teach - Chaucer. ;-)!
'Still not saluting.'
Huh?
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