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.  Model EXL-SQ6.5 Type Coaxial Size 6.5″ RMS Power 120W MAX Power 400W Frequency response 80-22KHz Impedance 3 ohm Sensitivity 90dB Materials  Surround Rubber Edge Cone Black Fiber Glass Magnet Strontium Voice coil wire BASV Diameters  Voice coil size 1.3″ (32.88mm) Magnet Size 3.55×1.58×0.6″ (13.5 oz) Tweeter Size 1.14″ PEI Dome Mounting depth Top (No Grill); 75mmTop (w/Grill): 98mmBottom: 65mm