filtro di rete niagara 7000Double isolation transformer equipped with a patented circuit for dielectric polarization. Correction of transients up to a current of 80 Amp (Improves the performance and power reserve of any amplifier used). Filter with coverage field greater than 23 octaves for the suppression of differential type noise. Patented technology for noise dissipation to the ground. Non invasive, audibly transparent system for surge protection by disconnection and