how do you properly ground an amp?

[bcst86 5]

alright, gonna go try to ground the rca's. i hope its not my amp i just bought it brand new, and i dont have another one to try. ill check the sub too but when i checked it with the dmm it said 1 ohm.

ill post back to let yall know what happens

[bcst86 5]

when i wraped the wire around them no music would come through and i could still hear it.

[helotaxi 46]

ill check the sub too but when i checked it with the dmm it said 1 ohm.

A DMM won't tell you anything about the phase of the coils.

Which part of the RCA plug did you wrap the wire around?

[bcst86 5]

do i wrap it around the outside part? i couldnt get it to stay very well.

on my sub how do i need to wire it to 1 ohm to go to my saz-1000d

Edited December 6, 2010 by bcst86

[liljestrand 244]

+ to + then to + on amp

- to - then to - on amp.

Assuming your sub is dual 2ohm.

[bcst86 5]

alright. thats how i had it. im guessing my headunits sub preouts are no good. when i have them plugged in there is a loud whine and when i unplug them it goes away. ive tried 2 sets of rca's too.

[Shogen 325]

just for kicks... try connecting the rear or front RCA outputs just to see if there is still a whine... obviously be careful with your sub and make the volume on your HU is lowered...

[bcst86 5]

alright. i will do that tomorrow. right now the headunit is sitting here next to me

[jmanjr 0]

let us know what happens when you do try this I am curious to what your actual problem is, but as I said earlier Im leaning towards preouts.

[Shogen 325]

any news yet???

[bcst86 5]

yep, just went and got a new wiring harness to remove the factory amp and all is good. no more noise when i have the volume from 0-4 and no whines when i put my sub amp on either. so now all i have to do is run put the sub back into the box and wire it up. hope everything works

Edited December 7, 2010 by bcst86

[jmanjr 0]

sounds good so far, when you get everything back in feel free to swing by with an update, hopefully you have cured everything!

[bcst86 5]

i got it back in and playing. finally get to hear it. its ok, i want it louder, need a bigger amp. still searching on how to set my gain and lpf. and i think i need a new ground. with the volume down you can feel the sub vibrating and hear it a little. that is the ground right?