2-way component kit compact direct headunit or amplifier system Adjustable tweeter housing phase plug: Better Sound Dispersion Specifications: Diameter 5 & # x2033; (130 mm) mounting depth 2 – 1/8 & # x2033; (54.5 mm) voice-coil Diameter 1 & # x2033; (25 mm) silk tweeter/Aluminum Cone polypropylene separated pre wired crossover (12dB/oct) Max Power 100 W nom power 50 W RMS Sensitivity (2.83 V/1 m) 90dB Frequency Response 65 Hz-21kHz accessories supplied grilles