Wayne Parham Messages: 18783 Registered: January 2001
Illuminati (33rd Degree)
I'm not talking about shorted voice coil turns, but rather (Faraday) shorting rings, usually placed on the pole piece. A shorting ring is most often implemented as a single turn of copper or aluminum extruded or machined and fitted onto the pole piece. It's like a short stub of pipe. About Danley, most times I've discussed them with him he has discounted them. So I'm not sure he is really interested enough in the use of shorting rings to investigate them to any great degree.