stable MDF cabinet with complex strutted and low resonant 22mm baffle fmax tweeter with very light 1” high quality cloth dome for extended frequency and dynamic range for SACD and DVD-audio reproduction woofer / midrange with ‚deep-space’- technology, stiff and light cellulose cone with resonant damping coating elaborate voice coil ventilation for high capacity high quality connection terminal with Bi-wiring/Bi-amping option and gold plated screw connectors bass reflex construction with double side rounded airflex ports complex crossover with high quality parts adjustable spikes, elective rubberspikes