25 mm dome tweeter made of Polyester Epoxy Compound with slight mass E.R.A. – technology (Early Reflection Absorption) – prevents sonic reflections from the tweeter at the cabinet Tweeter with pole core ventilation via coupled and microfibre damped volume Magnetically shielded F.E. Dynamics woofer and midrange – with FEM – technology ( Finite Elemente Methode ) developed - works extra linear and symmetric Airflow optimized, non-magnetic basket made of aluminium die cast Light ceramic – aluminium cone with extreme stability and high internal damping Voice coil for high capacity APOC crossover with high quality parts, built as a 4th order filter , (24dB/octave edge stepness) Internal wiring made of specially developed hard wire cable Bass reflex construction specially airflow optimized rounded Airflex-Ports Bass reflex adjustment with Klippel – laser measuring system developed High-glossy silver varnish, High glossy piano finish black, Real wood veneer cherry Stable MDF cabinet with non-parallel endwalls and additional reinforced wood shelves in lattice work High quality connection terminal with stable, golden screw terminals and Bi-wiring / Bi-amping option