"ported" XMAX
Posted: Fri Feb 17, 2012 9:41 pm
As I was hanging out at the local CA shop today, a guy came in with the most ghetto rigged install I've seen. His sub amp shut off and he couldn't figure out why, so he brought it in to be fixed. As I do most times I'm there, I help out for fun.
First thing we do is check the fuses, one was blown. Replace it and tada! The amp powers back up, but he was also having noise issues with his Kenwood HU. As we dig deeper into how this was hooked up, we find that the factory radio fuse was blown as well as the ignition fuse. We had no panel cover to tell us what was what and all but one fuse tested good. We replaced the one bad fuse and we have a constant now. Still couldn't find the ignition fuse spot so we ran a jumper over from under the steering column. We traced the constant and ignition wire (they were connected together behind the dash) all the way back to the sub amps main power terminals.
ARE YOU KIDDING ME!!!???
So, he had 4ga wire from the battery back to the sub amp, from the sub amps + terminal there was 3 more wires, a jumper to the mids/highs amp and the wire ran to the HU to provide power, and the last one to the remote turn on to the sub amp. The mids/highs amp had its remote jumped from the + of its terminal.
We then turned our attention to the four 12" subs he had......
XMAX 12's
We were joking about this, but this brings a "Hole" new concept to a ported "sub".

The one on the right has a bigger hole in it then the one on the left, but both bottom XMAX's had holes in the dust caps. The top 2 were in decent shape, thank God.
First thing we do is check the fuses, one was blown. Replace it and tada! The amp powers back up, but he was also having noise issues with his Kenwood HU. As we dig deeper into how this was hooked up, we find that the factory radio fuse was blown as well as the ignition fuse. We had no panel cover to tell us what was what and all but one fuse tested good. We replaced the one bad fuse and we have a constant now. Still couldn't find the ignition fuse spot so we ran a jumper over from under the steering column. We traced the constant and ignition wire (they were connected together behind the dash) all the way back to the sub amps main power terminals.
ARE YOU KIDDING ME!!!???
So, he had 4ga wire from the battery back to the sub amp, from the sub amps + terminal there was 3 more wires, a jumper to the mids/highs amp and the wire ran to the HU to provide power, and the last one to the remote turn on to the sub amp. The mids/highs amp had its remote jumped from the + of its terminal.
We then turned our attention to the four 12" subs he had......
XMAX 12's
We were joking about this, but this brings a "Hole" new concept to a ported "sub".

The one on the right has a bigger hole in it then the one on the left, but both bottom XMAX's had holes in the dust caps. The top 2 were in decent shape, thank God.