I have a 15 Fi Bl fully loaded. I have a Kicker ZX1500.1 amp to power it and 4 gauge stinger wire w/ 150amp in-line fuse. Several weeks ago i was bumpin around town, and my sub quit. I sent it in to Fi and they fixed it for me. (they never said, b/c they covered it under warranty, but i think they just reconed it) so i put it back in and have everything hooked up, but now when i turn the volume up to where i like it, it just doesn't do anything. a few notches down and it does fine, i would like to run it at 28, but it will only go on 25. (max volume 34) but when it quits, the green light is still on, and if i turn it back down it will hit again. sometimes it will hit an odd note when i have it up @ 27. I have no idea what it is, any help appreciated!