Pair of Power Acoustik NB-4 Tweeters NB-4 4-Way Mount Tweeter 250 Watts Niobium Rare Earth Ferroelectric Transducer Magnet Polypropylene Diaphragm Freq. Resp. 5k Hz to 25Khz Imp. 4 Ohm Swivel/Surface/Angle Mount/ Flush Mount SPL 97 d B Built in Crossover Easy to install Priced per pair!