Ground Zero GZTB 20ACT 178,21 € Saatavilla OSTAA Share Tiedot - Ground Zero GZTB 20ACT20 cm / 8? flat active subwoofer Aluminum housing Lowpass 60-200Hz Build-in monoamp 80 WRMS / 140 WMAX with bass remote and High-Level input with auto-on 7,6 cm / 0.299? height.