So I've always been able to throw together a pretty good sound system even though I don't really keep up with car stereo technology...but this has thrown me for a loop:
In my boat, I've got a cheap, yet very adequate sound system. I'm running:
2 x 12" Sony Xplod subs on a 1200w Xplod amp
4 x 6" Sony Xplod full range on a 1200w Xplod amp
2 x 6' Sony Xplod full range on a 600w Xplod amp
2 x 4x8" Sony Xplod full range on a 600w Xplode amp
(I know its not the greatest...but I got a great deal on the Sony stuff.)
I also ended up having to add another battery and replacing the alternator to get some more juice out of it. It was running flawless for a couple seasons. Sounded absolutely fantastic and got lots of praise on the lake.
Flash forward to last season: I'm replacing the alternator (again) and if any of you have ever worked on an inboard, you know how tight it is... I've got a hot wire straight off the battery pushed to the side and I'm listening to the stereo as I work. All of the sudden I get this awful sound comming out of the speakers. I look over and the 12v alternator wire is sitting on one of my subwoofer leads. I yank it off and flip out, but everything seems to be fine, stereo is blasting and all is good. I get it all back together and start it up...AAAAAAAAAAAAAAAAAAAAAAARRRRRRRRRRRRRRGGGGGGGGGGGGG!!!!!!! There is TERRIBLE engine noise comming out of every speaker. Ignition, alternator, and blower fans all produce this electrical noise.
I've pretty much ruled out the alternator, I just had the shop replace the plastic internal fan with a metal one. I'm assuming I blew out the filters or ground loops on the amps. I've been planning to take everything out and reinstall one by one to see if it's all or just one amp that's doing it, but before I do, I thought I'd see if anyone had any ideas on what happened and if there is some kind of a fix for the problem, like noise filters or something that I could install cheap to keep from replacing the amps. It's really tough to get to all my amps to work on, so I'm trying to get as much advice as possible before I start working on it.
Any info you could give me would be much apreciated.
In my boat, I've got a cheap, yet very adequate sound system. I'm running:
2 x 12" Sony Xplod subs on a 1200w Xplod amp
4 x 6" Sony Xplod full range on a 1200w Xplod amp
2 x 6' Sony Xplod full range on a 600w Xplod amp
2 x 4x8" Sony Xplod full range on a 600w Xplode amp
(I know its not the greatest...but I got a great deal on the Sony stuff.)
I also ended up having to add another battery and replacing the alternator to get some more juice out of it. It was running flawless for a couple seasons. Sounded absolutely fantastic and got lots of praise on the lake.
Flash forward to last season: I'm replacing the alternator (again) and if any of you have ever worked on an inboard, you know how tight it is... I've got a hot wire straight off the battery pushed to the side and I'm listening to the stereo as I work. All of the sudden I get this awful sound comming out of the speakers. I look over and the 12v alternator wire is sitting on one of my subwoofer leads. I yank it off and flip out, but everything seems to be fine, stereo is blasting and all is good. I get it all back together and start it up...AAAAAAAAAAAAAAAAAAAAAAARRRRRRRRRRRRRRGGGGGGGGGGGGG!!!!!!! There is TERRIBLE engine noise comming out of every speaker. Ignition, alternator, and blower fans all produce this electrical noise.
I've pretty much ruled out the alternator, I just had the shop replace the plastic internal fan with a metal one. I'm assuming I blew out the filters or ground loops on the amps. I've been planning to take everything out and reinstall one by one to see if it's all or just one amp that's doing it, but before I do, I thought I'd see if anyone had any ideas on what happened and if there is some kind of a fix for the problem, like noise filters or something that I could install cheap to keep from replacing the amps. It's really tough to get to all my amps to work on, so I'm trying to get as much advice as possible before I start working on it.
Any info you could give me would be much apreciated.