ATC SM75-150 Soft Dome Midrange The woofer to midrange hand-off is at 380Hz and the midrange to tweeter crossover is at 3.5kHz. This minimizes noise, improves crossover accuracy, and allows tailoring ...

above a 75mm soft dome SM75-150S midrange cone and the SB75-375SL bass driver – both the latest evolutions of ATC technology. Each unit is driven directly by a dedicated channel of ATC's six-channel ...