I'm willing to bet like everyone else it's 1: a loose ring terminal, 2: a bad fuse, or 3: a bad ground; maybe paint wasn't stripped before grounding, not tight enough. Check all these things and get back
It's very simple your losing voltage from point A to point B Improve your grounds/grounding points, maybe add another run, and this should solve your issue.
Bingo!! the answer is in your wiring your losing power through your wire. Upgrade wiring to the amp and it should be much better. Also like said previously fuses can cause this too
C2 AUDIO || 15" Threatcon-2 Subwoofer
I would put this in my car already set up for a single 15 in a trunk wall ready for spl! I would take this to competitions and win some for C2!
Im gonna be purchasing an amp in the next 2 weeks and so far my choices are between a DD m3a, Crescendo 3500, aq 3500, a lanzar opti 4.6k, and finally 2 hifonics brutus 2400s. Which amp should I get or avoid? Thanks for the help.