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16th July 2007, 05:52 AM
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#1 |
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diyAudio Member
Join Date: Jan 2006
Location: Wisconsin....what did you expect?
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Wanted: Big carton of small, high-impeadance drivers
I'd like to try making an OPT-less guitar amplifier, and using a massive array of 3" 40 ohm drivers seems like the easiest way to do it. Anyone got a carton?
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16th July 2007, 08:23 AM
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#2 |
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Magneto the Gravity Man
diyAudio Member
Join Date: Mar 2005
Location: A life on the ocean waves when I'm not at home in N. Wales (but I'm not Welsh so no sheep jokes!)
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__________________
If it ain't broke, break it !! Then fix it again. It's called DIY ! |
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16th July 2007, 12:31 PM
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#3 |
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diyAudio Member
Join Date: May 2005
Location: Bavarian Forest
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There are some high impedance Philips drivers.
http://cgi.ebay.de/Philips-9710A-20c...QQcmdZViewItem |
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16th July 2007, 12:38 PM
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#4 |
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diyAudio Member
Join Date: May 2005
Location: Bavarian Forest
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Or maybe even a Freischwinger system:
http://cgi.ebay.de/Alter-Lautspreche...QQcmdZViewItem http://cgi.ebay.de/Alter-Lautspreche...QQcmdZViewItem |
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16th July 2007, 02:38 PM
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#5 | |
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diyAudio Member
Join Date: Jan 2006
Location: Wisconsin....what did you expect?
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Quote:
First, the shipping on those is a deal-killer. Second, what ARE those? I don't speak German, so I'm at a bit of a loss. |
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16th July 2007, 04:12 PM
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#6 |
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diyAudio Member
Join Date: May 2005
Location: Bavarian Forest
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Freischwingers consist of a permanent magnet and an excitation coil standing 90° to eachother, the moving part is the core of the coil or an induction loop, depending on the manufacturer. Because of the compact-wound coil the have poor cooling and low power handling. They went into extinction when permanent magnets became strong enough for dynamic speakers. The Telefunken in my link has a diaphragm similar to a Linaeum.
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17th July 2007, 02:06 AM
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#8 | |
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diyAudio Member
Join Date: Jan 2006
Location: Wisconsin....what did you expect?
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Re: I have some
Quote:
I need at least 20 or so - but, yah, that would work. |
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