inputs.text: cdt es02 wideband tweeter - first let say purchased replace tweeters 2way active setupi mounted onaxis custom tweeter pods apillars whether simply replace tweeters keep thehem crossed around 5khz use thehem full potential cross thehem low 250hz see dramatic improvehement clarity detail highpass thehem 500hz 18db slope midbass bandpassed 60hz550hz 24db 18db slopes running systehem active audison bitten processor powered two alpine amplifiers clean power money way 50 watts rms per channel sufficient make drivers singbringing much frequency spectrum high sound stage pretty incredible reveals detail never noticed musicbefore changed crossover points eq settings listened drivers tweeters thehem crossed 4250hz serve natural sounding tweeter ever heard almost identical hybrid audio technologies legatia tweeters experience pastbottom line would recommend anyone looking natural perfectly balanced tweeter capable reaching insanely low frequencies size would confidently put league hybrid audio buy cdt products future