In Reply to: RE: GOT FOIL ? posted by IEaudiodude on July 11, 2011 at 10:36:28:
In order to have a similar efficency, the foil should have a similar cross sectional area. It also means the mass of the foil will be the same as for a round section wire. If you reduce the cross sectional area, the resistance increase and the effeicency decrease. The bass drivers need a certain mass of the wires (round or flat wires). If the mass is lower, the low frequency resonance behaviour will be upset, cut off frequency will be moved upwards and low bass will be impossible. It seems that many believe the flat wire have a lower mass.... The Magneplanar drivers does not have very low moving mass. The bass drivers use to have about 40 gram of wires, than add the mass of the Mylar foil and the glue. The tweeters have more mass than a conventional dome tweeter. A flat wire will adhere better to the Mylar but it will "short" the elasticity to some degree. The area covered by the flat wire/the foil cannot flex and if it covers too much of the Mylar it will probably not be very positive for low bass reproduction. The flat wire probably have better cooling properties, can take a little more power before burning a hole in the Mylar.
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- RE: GOT FOIL ? - Roger Gustavsson 09:59:42 07/12/11 (6)
- RE: GOT FOIL ? - IEaudiodude 10:37:01 07/12/11 (5)
- RE: GOT FOIL ? - josh358 06:05:59 06/12/18 (0)
- RE: GOT FOIL ? - Roger Gustavsson 11:07:35 07/12/11 (3)
- RE: GOT FOIL ? - IEaudiodude 12:47:48 07/12/11 (2)
- RE: GOT FOIL ? - hgg 04:54:00 07/13/11 (1)
- RE: GOT FOIL ? - IEaudiodude 11:23:09 07/13/11 (0)