The PW21F uses FERRITE magnetics and a 4”/5” diameter voice coil that provides an AES rated 2500 watts of continuous power handling.
They are also features a double spider design insures very high displacement and linear response while maintaining excellent control.
The cone has been treated with a conformal coating designed to provide additional mechanical damping and moisture resistance.
The transducer chassis is a die cast aluminum design that insures a very high degree of structural integrity.