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In Reply to: RE: Absolutely! ... posted by ghost4man on September 7, 2016 at 03:29:14:
"210 Yards MG1.7i MID/BASS foil 0.06 x 0.005.
It was not possible to do double runs. The photo will reveal why. Its simply a case of dimensions.The result is that each panel measure 4.1 ohms and are linked in series to give just over 8 ohms."
Is that really correct? We are still talking about I-D drivers? Each driver use have 27 rows of magnets, that makes it 26 runs of wires about 1.43 m each = 37.2 m + some additional cm for connections, let us say 37.5 m.If you really used all the 192 m for the four drivers, 48 m on each driver, you must have double runs somewhere.
What kind of Magnepan is that picture showing? It is not an I-D...
Did some more calcutlations. The bass wire of the Magnepan 3.7/3.7i, is 1.905x0.127 mm. It would give about 4 ohm on each I-D bass driver. No wonder you had a differnt sound compared to the original round wire, you have doubled the current density in the magnet gap!That also means you have doubled the mass of the wiring. You are not only comparing the round vs. foil conductors...
In theory the change of the wiring would cause:
increased efficiency
lowered cut off frequency, operating at a lower spectrum
the need for a separate midrange driver increases
less midrange transparency
Edits: 09/07/16 09/07/16
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Follow Ups
- RE: Absolutely! ... - Roger Gustavsson 04:54:20 09/07/16 (2)
- RE: Absolutely! ... - ghost4man 00:51:48 09/08/16 (1)
- RE: Absolutely! ... - Satie 19:16:01 09/08/16 (0)
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