CEA EIA-299-A
CEA EA-299-A 1968-OCT-01 Loudspeakers Dynamc Magnetc Structures and mpedance
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Nominal dimensions and weights are specified for nine Alnico 5 magnets. Nominal airgap dimensions are listed.
Recommended standard voice coil impedance series is based on fiprogression.
There is no other industry standard for voice coil impedance series or specific dimensions for an Alnico 5 magnet structure family.