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- Path: sparky!uunet!gatech!prism!gt0869a
- From: gt0869a@prism.gatech.EDU (WATERS,CLYDE GORDON)
- Newsgroups: rec.audio
- Subject: Re: Passive radiator speakers
- Message-ID: <64139@hydra.gatech.EDU>
- Date: 23 Jul 92 01:31:49 GMT
- References: <1992Jul17.164425.21837@muddcs.claremont.edu> <BrK06C.Ax3@world.std.com> <1992Jul19.043941.22071@lugb.latrobe.edu.au>
- Organization: Georgia Institute of Technology
- Lines: 28
-
- In article <1992Jul19.043941.22071@lugb.latrobe.edu.au> MATGBB@LURE.LATROBE.EDU.AU (BYRNES,Graham) writes:
- >>
- >There is also the cute possibility of having adjustable damping, a la Sonus
- >Faber. If the passive radiator is actually a normal driver with the voice
- >coil shorted, the motion of the diaphram is damped by ohmic losses in the
- >voice coil. If the voice coil is left open circuit, only mechanical damping
- >(usually a factor of 5 less) occurs. It is possible to use any amount
- >of damping between these extremes by shorting the voice coil via a resistor
-
- What about using a capacitor? Couldn't you modify the response of the
- radiator to accentuate the lower frequency output? I know this all
- depands on the total transfer function with the cap, but it makes a
- neat thought experiment, and something to try if I have the time...
-
- Now that I think of it, doesn't Vandersteen do something similar to
- this? The 2c's I have seen have what is called, I think, an electrically
- enhanced passive radiator...
-
- Comments, anyone?
-
- Regards,
- Gordon.
-
- --
- WATERS,CLYDE GORDON-Georgia Institute of Technology Atlanta Ga 30332
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