Warp-resistant aluminum die-cast basket in flat design with internal, ultra-strong neodymium magnet. Thus we achieve the low installation depth of 41.5 mm without any loss of tone. We use a flat spider, made of heat-resistant linen, for a longer piston motion range.For long durability are the wires of the mains cables inserted weaves. The 30 mm long pretty wing coil is made of epoxy hi-tech glass fiber and reacts quickly and spontaneously to the music signal. Large ventilation openings in the basket below the centring provide for good cooling and low compression.The diaphragm is injection moulded with carbon fibre and attached to the chassis with vibration dampening rubber surrounds. Additional diaphragm damping by five asymmetric reinforcement beads.Thus, first-class bass playback is made possible.The Neo-30 allows starting from 2,500 Hz an excellent stage illustration - the most important prerequisite for car hifi at the highest level. In connection with active switches, the deepest