How to calculate wire length needed on a coil for a given impedance?
Let's say you have a 3" diameter voice coil, using 30 gauge copper round wire. How long does this wire need to be to give you a 2 ohm impedance? I am talking about a single coil here, no dual voice coil configurations.
I know there are programs like SpeaD from Redrock Acoustics that will tell you this, but what is the formula for doing this by hand?
2011 Honda Civic Coupe
Image Dynamics CXS62 v.2 powered by an Audioque 200.2
(2) Sundown SA 12" powered by an Audioque 1200D