In Reply to: 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 2, 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
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Follow Ups
- RE: Which make me doubt the 93db/? specification. And BDS is going to kick in pretty early as well. - tomservo 10:46:11 07/03/12 (3)
- RE: Which make me doubt the 93db/? specification. And BDS is going to kick in pretty early as well. - Joe Roberts 12:52:29 07/06/12 (0)
- See the ayatollah's response above!? - Timbo in Oz 05:13:23 07/06/12 (1)
- huh? - Joe Roberts 11:59:25 07/06/12 (0)