tripple highpass 2-pole filters (cutoffs are cca 7khz, 3.5khz and 220hz) tripple lowpass 1-pole filters (cutoffs are cca (1.5khz, 4.1khz and 880hz) passive design => signal drop, but no power connection needed t e c h n i c a l d e t a i l s fe a tu r e s 2hp 15mm deep passive design – n...