My Pete rebuild

[Rawze]

(01-31-2019 )Nostalgic Wrote:  My first time dealing with ground loop noise, and I still blame the cheap amps, but putting ground loop isolators on the 4 F&R channels took most of it out. I bought everything from Crutchfield's scratch-n-dent store, and despite the non existent budget, pieced together a pretty good sounding system.

ground loop noise can be stopped in its tracks if you use a single heavy gauge power wire/ground pair feed that starts at only one end of the system and powers all components in a daisy chain on a single power feed-line instead of tapping a source of power/ground from different places in the vehicle.

For example, same thing happens at your house,.. lots of people complain about line noise in their home theater and television systems when they turn the volume up high ,... you look at how all the amps, cable tv boxes, computer that is connected, and devices are plugged in and they are all plugged into the nearest outlet instead of using a single outlet, then daisy-chaining that single connection with drop cords to all devices in the system. It makes a huge difference if you only use a single source daisy chained like that instead of the nearest power source. Daisy-chaining the power from a single source keeps the varying current draw of all the devices in phase with each other as they draw more or less power off that single power feed line.