E-Power Power NB2 Tweeter Power AcOUSTIK NIOBIUM200WATTS 3-Way MOUNTINgPackage: 1 EaImp: 4ohm 200W max 100W RMS Niobium rare earth ferroelectric transducer magnets Polypropylene diaphragms Built-in crossovers Flushanglesurface mount Freq resp: 5kHz-25kHz 97dB SPL 1-year warranty PairFeatures of E-Power Power NB2 Tweeter Power AcOUSTIK NIOBIUM200WAT..