E430-Pair - Dynaudio 3.5" Esotar2 Series Midrange Speakers (Pair) 3.5" Esotar Series Midrange Speaker Diaphragm and dust cap moulded as one piece Internal double magnet system with vented pole piece Magnetsystem with neodymium magnet and vented pole piece Aluminium voice coil wire provides for a low moving mass, wound on aluminium former