Ground Loop

Ok I seen where Fusion makes this thing to eliminate the Gound Loop noise! Does it work? anyone used it?1 15" Memphis Mojo,

Memphis 16-mc1000D amp,

Audiopipe 4gauge mp kit, Pioneer DEH4700MP head unit.

2002 Yamaha 660R Raptor

Yamaha FZR600 crotch rocket

Sea Doo XP800

Sea Doo Spi

can anyone define ground loop, and ground loop isolator for me?

not 100% positive but i believe a ground loop is when u have multiple different grounding points for your stereo stuff which have different resistances and causes noise to be introduced because of those resistance differences...not sure on the isolator but it looks like a filtering cap or something...Cant ground loops be fixed by making sure your ground from your battery is good with the body, and chassis as well as keeping grounding points to a minimum.

it's just a coil that inducts the audio ground path between two points....Kevin Gerry

Certified Electronics Technician

MECP First Class Installer

Owner/Installer

Classic Car Audio

since 1979

And is generally referred to as a band aid. It does not solve the root cause of the problem but does indeed aid it.Top Secret, I can tell you but then my wife will kill me.

ground loops are created when electronics have poor isolation between their signal ground and power ground. in the above pic assume circuit 1 to be a headunit and circuit 2 to be an amp. they both have poor isolation between their power ground and signal ground, they are tied together. the +12 power wire for both circuits was left out. because of the resistance between the power grounds a noise voltage develops causing a noise current to flow thru the signal ground. this is one reason its advisable to have a single ground point for your audio components, less resistance = less noise voltage. anyways, hope that helps.