Sunlight engineering SE 308, 2 way 18in concentric drivers.In my large BR cabinets they fill large rooms with even SPL. Image stays centered even when far off axis. Midrange is so detailed, I hear things in music I know well that I have not before. They have a musical connection that seems to go beyound fidelity into musicality, touch your soul, bring out the emotion in music. Built to last a lifetime, magnets are 50lbs ea of alnico.Cones are easy to repair. They do need help with sub bass and ultrasonic trebile after all at 103db for a 18in something has to be given up ;) but adding a fostex t90aex tweeter and designing a sub wasent so hard. This system is design for use with a powered subwoofer I use a aura 18in monster fills in below 50hz. Together this near 800lbs Sat sub system can fill very large spaces on lower power ampliiers , se308 mains are 103db 8ohm drivers are costly near $10000 pair just for se308,one would still need cabinets crossovers etc. Still one of the best I have heard owned.
