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- Newsgroups: rec.audio
- Path: sparky!uunet!world!DPierce
- From: DPierce@world.std.com (Richard D Pierce)
- Subject: Re: Liquid Cooled Speakers?
- Message-ID: <C1B5vL.Ct7@world.std.com>
- Organization: The World Public Access UNIX, Brookline, MA
- References: <136020002@hpcupt1.cup.hp.com> <C17M0z.7t5@world.std.com> <C19FDF.8CI@panix.com>
- Date: Sat, 23 Jan 1993 13:09:20 GMT
- Lines: 21
-
- In article <C19FDF.8CI@panix.com> moskowit@panix.com (Len Moskowitz) writes:
- >Richard D Pierce writes:
- >
- >>There are some problems, though. The viscosity of the oil changes with
- >>temperature, so that the damping effects are reduced at high temperatures.
- >>The oil can tend to "wick" out of the gap if there are any very narrow
- >>gaps or absorbent materials near by (like the paper cone of a tweeter).
- >
- >Also, over time, small amounts of the ferrofluid can be forcibly ejected
- >from the gap eventually resulting in performance changes.
- >
-
- This is only the case with drivers with large mechanical excursion
- capability that does not have the venting done properly. I have never seen
- this happen with tweeters.
-
- --
- | Dick Pierce |
- | Loudspeaker and Software Consulting |
- | 17 Sartelle Street Pepperell, MA 01463 |
- | (508) 433-9183 (Voice and FAX) |
-