Arris/C-COR – CableServ has developed the patented CableServ ® Padded Equalizer by separating the reactive and resistive elements of a CATV amplifier equalizer or slope control into two distinct entities. The reactive element is contained on a circuit board plug-in carrier which establishes the equalization bandwidth. The carrier remains installed in the amplifier equalizer or slope location depending on the amplifier model. What this means is that you adjust the slope by plugging in a SPB pad.