Designed for quick and easy in-field replacement of blown or damaged KICKER 49STTW4 Bullet Horn Tweeters. ^^ Made for competition-level SPL systems and extreme output. Voiced for clear vocals to match with high-output bass. Available as a single unit, not in pairs. ^^ Custom-designed by KICKER engineers for ultimate power handling and efficiency. Spring-loaded speaker terminals accept up to16 AWG wire. ^^ 15-50 Watts RMS, 100 Watts peak, Sensitivity 106 dB 1W/1M, Frequency Response 3.0 kHz to 20kHz, 4-Ohm