Ok i just got my amp and i need to ask a couple of Questions, ok how do i set the Input sensitivity level? wat should i set my subsonic variable to?and what does the Phase shift switch mean? if you could help that would be great!
Subsonic, depends on your box type, and tuning. If you're using a sealed box, you dont need to worry about this feature at all.
Phase switch, is basically a timed-correction if you're using subs run off multiple amps or in seperate posistions. Your input sensitivity, should be set up to match the output voltage of your head unit.. (Or slightly higher, to it's at max volume at roughly 3/4's of your HU's volume to avoid distortion.)