I have very limited experience with speaker building and circuits in general and have just inherited pair of c38 cabinets with a system 30 (d130; 075; n2600 16 ohm) configuration. Should the L-Pads be 'stepped' at the 1,2,3,4 settings? Mine turns smoothly about 330 degrees before stopping? Should I need to replace it with a new one (partexpress), do i order a 8 ohm or 16 ohm? The crossover and speakers are labeled 16 ohm, but a N2600 spec I have indicates an 8 ohm L-Pad. The N2600 spec indicates that the crossover is 8 ohm. Do I have the wrong spec...I'm a little confused http://www.jblproservice.com/pdf/Net...tics/N2600.pdf