amp tuning

I have an fluke 43B power quality analyser. And I'm having trouble with reading the rca voltage, I'm getting a output of 0.2 volts and my head unit is supposed to have a rca voltage of 2 volts.

The box I made is tuned to the low 30s. What should I set my amp to? My amp (Rockford Fosgate R1200-1D) has four dials: PUNCH EQ, FREQ Hz, Infrasonic Filter Hz, and Gain. Where should all these be set to? My sub btw is an American Bass TNT 15''

first off i have 2 audiopipe apcl 15001d's bridged at 2 ohms on 4 obsidian audio 15 v3's, they are d4's in a 14cu.ft box tuned to 33hz. my problem is that i tuned my amps with an oscilloscope on a 100 and a 40hz 0db test tone, my receiver clipps the sub out at volume 36, so i tuned the amps at...

My sub blew the other day and now i need to change my amps settings so i get bass through my components. I had the high pass filter on so there was no bass coming through the speakers, just from the sub. Should i leave the high pass on and change the frequency or turn it off? As i want bass to...