RuudNL
Well-known member
I read on Klaus Heyne's Microphone Lab forum, that a lot of U87 capsules have a too high tensioning of the diaphragms, resulting in a poor LF response. I think I can agree with that to a certain extend. As far as I know, the 'older' U87 microphones had a better LF response. In order to compensate this, I already changed the (fixed) LF rolloff filter. (C104 in the U87ai.)
Now Klaus Heyne writes that he has a way to "relax the tensioning of the membranes".
I don't have an idea what he could mean with this. The membranes are pretty fragile, so I can't think of a way to accomplish this.
(Especially because the membranes are not glued to the tensioning rings, it seems.) Any ideas?
Now Klaus Heyne writes that he has a way to "relax the tensioning of the membranes".
I don't have an idea what he could mean with this. The membranes are pretty fragile, so I can't think of a way to accomplish this.
(Especially because the membranes are not glued to the tensioning rings, it seems.) Any ideas?