Nick Hughes
Jetboaters Lieutenant
- Messages
- 326
- Reaction score
- 122
- Points
- 152
- Location
- Columbus, OH
- Boat Make
- Yamaha
- Year
- 2015
- Boat Model
- Limited S
- Boat Length
- 24
I know this has been discussed at length, but I have tried everything suggested. First a little back story. Installed 8 JL Audio MX650s and a IB6 Sub, with a M200/2 for the sub and an M800/8V2 for the others. Did this years ago, sounded great. Got stolen in the off season.
I replaced the amps with the newer XDM600/1 for the sub and XDM800/8 for the others, M6-10IB Sub. They left the 650s. All the sudden I have hum in all speakers. BT, USB, no blower, no engine on, just on the trailer debugging. I have 4ga from the battery for both power and ground, 2 separate bus bars in the helm. 4ga everything to both amps. I have 3 inline breakers, 150a a few inches from the battery, an 80a and 50a after the bus bars to the amp. I wired the Connext ground to the same bus bar. I had the amps tuned with a sine wave, but any gain over about 1 tick and the hum/fuzz is more easily heard.
Obviously the house and starter batteries are connected back there with the power switches, alternator, voltage check, etc. So its hard to eliminate much more because then the boat won't start.
I am doing everything I can to not get a ground loop isolator and fix the problem, but that's my next stop. Any help would be appreciated. My old lurker @Mainah...
I replaced the amps with the newer XDM600/1 for the sub and XDM800/8 for the others, M6-10IB Sub. They left the 650s. All the sudden I have hum in all speakers. BT, USB, no blower, no engine on, just on the trailer debugging. I have 4ga from the battery for both power and ground, 2 separate bus bars in the helm. 4ga everything to both amps. I have 3 inline breakers, 150a a few inches from the battery, an 80a and 50a after the bus bars to the amp. I wired the Connext ground to the same bus bar. I had the amps tuned with a sine wave, but any gain over about 1 tick and the hum/fuzz is more easily heard.
Obviously the house and starter batteries are connected back there with the power switches, alternator, voltage check, etc. So its hard to eliminate much more because then the boat won't start.
I am doing everything I can to not get a ground loop isolator and fix the problem, but that's my next stop. Any help would be appreciated. My old lurker @Mainah...