I wanted to post my settings for the XCLA2 and VADM1 amp. I am not an expert, I just watched a lot of YouTube videos, and read about this. I did some of what
cdub715 posted earlier in this thread. Hopefully this will help get some installs close to a decent sound.
I didn't adjust the X Bass threshold on the side of the XCLA2.
I used a
Kicker 50hz -10DB test tone. I tried all 3, but I like more bass so settled with the -10db one.
I had all ICE EQ settings at 0. I had the volume about 4-6 notches from max volume, which is roughly around 3/4 volume. I don't listen this loud usually. I turned the Bass Level knob until the maximized light lit up, then backed it off a tad. I did turn up the Bass-X knob just a tad.
I stopped the test track, removed power from the XLCA2, then removed my speaker wires from the VADM1 and secured my voltmeter probes in the wire adapter. I made sure lowpass was at the max 250hz, subsonic was at 10hz, boost at 0 and SENS gain at 5v (low). I gave it power back and ran the test track again. I adjusted the SENS gain control until I got the 25.2V (Voltmeter on AC mode).
I connected my speaker back up, and did some test listening to some music. I adjusted my low pass and subsonic filters. A comment on the NVX youtube video by NVX stated they used 80hz LPF, 25hz subsonic, and slight bump for Bass-X. I found the bass not quite enough, so I went back and adjusted the SENS up just a bit. I hooked up my voltmeter one last time to get a reading of the voltage I am settling at. Turns out its at 27.4V.
This is will probably clip at loud volumes and on some music, but I think for most of what I listen to it will be good (EDM, Pop, Rock, not alot of hip hop or rap). Specifically, I tested with these songs (Linkin Park - Bleed it Out, Creed - My Sacrifice, Chevelle - The Red, Pink Floyd - Money, Panic! at the Disco - The Greatest Show, Lauren Daigel - Still Rolling Stones, Deadmau5 - Sofi Needs a Ladder)
Side note, i was able to get the charge release lead on top of the sub so it can be pulled. I'll probably extend it with some rope.