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Planar magnetic from Wire to Foil test
Planar magnetic from Wire to Foil test
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Old 28th December 2019, 11:56 PM   #61
marktmeyer is offline marktmeyer  United States
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Join Date: Apr 2005
Location: Highland, MI USA
WrineX, what are your reasons for using the foil rather than wire?
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Old 31st December 2019, 10:13 AM   #62
RogerGustavsson is offline RogerGustavsson  Sweden
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Location: Huskvarna
As I have "foiled" my Tympani IVa mids, I would say that the tension in combination of foil can improve high frequency reproduction. Those models were bass and tweeter sits on the same piece of Mylar (like your MG I) may have too little tension for taking advantage of just foil. I tested my mids yesterday, they need a higher tension than what they had from Magenpan. I will have to start it over... Sure, if the tension is increased, the low end will also be affected but it is in my case tension is too low anyway.
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Old 31st December 2019, 02:11 PM   #63
marktmeyer is offline marktmeyer  United States
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thank you for the thoughtful review, from what I hear you say , the wire sounds like the correct avenue for my project. Thanks!!
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Old 31st December 2019, 03:51 PM   #64
RogerGustavsson is offline RogerGustavsson  Sweden
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MG I are really old and the Mylar can have lost some tension over the years. I would go for round wire, like the original. I think there are double runs on some parts of the diaghragm and that is not the case in Magnepan's using foil. It is essential to stay close to the original wiring layout. If not, you may end up with a different sounding speaker. You can try to listen from the other side of the speaker. Younger models have the diaphragm facing forward, older ones have the perforated sheet metal with the magnets in front of the diaphragm.
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Old 31st December 2019, 04:56 PM   #65
marktmeyer is offline marktmeyer  United States
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Ok! Thanks!
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