Speaker Issue

[Hoffer345]

Hey guys! I am having an speaker issue with a boat I just bought. So we have a Roswell system and I am having a issue with one of the Neptune Tower Speakers not working. I first unhooked the speaker and moved it over to the other side to test the speaker and it worked on the other side, so I know for sure it is not the speaker itself. I actually bought another Roswell amp 600.4 and bridged them to maximize power and that didn't work. I then thought the RCA cable was bad but when try to unplug/plug RC it does not affect which speaker will work...for example, I plug the L RC and leave the R out (or vise verse) the speaker that currently works still continues to work, does not make the other side work..That doesn't make sense to me.. The boat also has an equalizer in it and the RCA cable goes to it.

Any suggestions or advice would be awesome because I am lost on this issue.

[MLA]

Simply unplugging an RCA would not return the audio signal to a dead chnl, try swapping the left and right RCA.