SteelKiller 10+ year member
Junior Member
I am running the KFCXP6903C "component" set up front in my Ram. 6x9's in the doors and the 3.5" coaxials in the dash. I want to run them active. Am I going to need a DSP to get the 3.5" hpf high enough that I won't ruin them? Seems most amps the hpf isn't high enough to cut the frequency at 800hz which is the factory cut off for them. Or should I just run the passive crossover that came with them and call it good? I am planning a 4 channel for the front with channel A for the 3.5's and channel B for the 6x9's.