When you seek sound quality, it is best to have an idea of what to look for. Sensitivity, frequencies, woofer, tweeter, surround materials, and power handling are all important key factors. EXL SQ Coaxial Speaker brings it all with black glass fiber cone, advanced PEI dome tweeter, NEO magnets, die-cast baskets, 1″ BASV voice coils, 3 OHMS impedance strontium-magnets and machine finished basket surrounds.