Crap, there is a problem with my subs, they decreased in volume 90%

[Spkrman]

Most likely your gonna want to buy new rcas. My friends is like this theyll be loud like normal then if you bump his rcas or move them they lose all output but are still getting power.
so try moving them around on the amp and see if the output like cuts on and off because thats what i think it is.

would also be my best guess

 

[pimpn04coupe 10+ year member]

yea i dont think the amps have ohmed or watever because they literally work on day and dont another. Ok im convinced its a connection issue, i did move around the wires ALOT when i moved the subbox to remove and reinstall the panels....