The new flagship speaker from Quintessence Acoustics . A world class speaker if there ever was one. With 6 moving coil drivers, and one ribbon unit, this speaker has a seemless band pass from 20 to 40 k. Excellent efficiency (90 DB) and superb power handling allows this speaker to reproduce any genre of music with authority. It uses the finest crossover parts including Mundorf Siver Gold Oil caps. May consider possible trades for lesser equipment and cash. Add 3.5% for PayPal. Buy with confidence from a long time AGON member.