i just got my new mtx 4122 amp hooked up to my rear 6X9 speakers in my grand am. i have really bad group loop noise coming from the speakers... the output is real good sound wise when i turn them up, but when everything is off all i hear is ground loop noise and its really irritating.
is there any way to get rid of this? i hate it and want to get rid of it.
thanks a lot.
How long are your grounds? How clean is your ground? You might wanna do a better ground to your radio as well.
my grounds are less than 18inches long, 4awg with gold plated spades, both are hooked up to one of the two seat belt bolts underneath the rear seat. and im also using rockford fosgate twisted signal wires for both of my amps, my lows amp (mtx 6500d) doesnt have any GLN at all, so this is why i dont understand why my highs amp does. the mtx 4122 im using for highs is brand spanking new i bought it a month ago from a local audio store.
ive been wondering if i should upgrade the ground on my cd player, unfortunatly i have a cheap pioneer that i got at wal-mart.
Try grounding the Preouts on the back of the deck. My pioneer deck had a horrible ground loop noise, and I took a piece of bare wire (a couple of strands, it doesn't take much, and you just wrap the wire around the preouts outter ... @!#$ i have no clue what the techincal term is for it, but it's the ouside metal on the preout, not the middle part...if that makes sence to you. And then you take the wire that you just wrapped around the preouts and ground it to the deck with a small screw or something on the rear of the deck. Worked wonders for me. If you need pictures, i'll try find a link to the post on CAF which helped me figure out my problem, because my directions here arn't very good as I'm not a good vocal explainer
wysiwyg wrote:i would say they bang, they don't really pound so much. but if
you want to bump, then they will bump and hit real hard and a lot good. 
LOL
Brad Rogers wrote:my grounds are less than 18inches long, 4awg with gold plated spades, both are hooked up to one of the two seat belt bolts underneath the rear seat. and im also using rockford fosgate twisted signal wires for both of my amps, my lows amp (mtx 6500d) doesnt have any GLN at all, so this is why i dont understand why my highs amp does. the mtx 4122 im using for highs is brand spanking new i bought it a month ago from a local audio store.
Don't assume your sub amp doesn't have noise on the input signal. Ground loop noise is a high frequency signal that won't be reproduced if the crossover is low enough. The source of the noise might be common to both amplifiers.
Whatever wrote:Try grounding the Preouts on the back of the deck. My pioneer deck had a horrible ground loop noise, and I took a piece of bare wire (a couple of strands, it doesn't take much, and you just wrap the wire around the preouts outter ... @!#$ i have no clue what the techincal term is for it, but it's the ouside metal on the preout, not the middle part...if that makes sence to you. And then you take the wire that you just wrapped around the preouts and ground it to the deck with a small screw or something on the rear of the deck. Worked wonders for me. If you need pictures, i'll try find a link to the post on CAF which helped me figure out my problem, because my directions here arn't very good as I'm not a good vocal explainer
holy crap... this actually worked!!! and worked very well! im still in awe that it did, THANK YOU SO MUCH!
so what shall we call this mod? the "lil 1 wire upgrade" ?? hahaha
