Ok Heres the Problem I got my new usacousics 4065 amp and a new kenwood excelon deck kdcx469 and a set of audiobann componuts ABC525Q and It sounds ok untill I turn the gain on the amp up at all and then I get a massive buzz and a whine when the car is running . I moved the ground like 4 times and it dosn't get rid of or get any better. I am using 4 gage wire I got from ace hardware It is only has about 8 to 15 wires running in it they are thick. I am wondering if thats my problem? If any one has any Ideas post asap I need my car back together tomorrow
Replies (24)
Relax_The_Mind on 08/24/2003 19:51:39
What type of car...
1. A better multistrand power cable and ground may solve your problem as those thicker wires are probably acting like huge transmitters feeding noise into your system. For that amp I would think that a better multistrand 8 gauge would benefit you better (it only has a 35amp fuse. That way you wont have to break the bank also.
2. Also...do you have the power wire running seperatley from the RCA cables only crossing (if crossing anywhere) perpendicular. Its always good to run the power down one side of the car and the RCAs on the other. (remote wire doesnt matter)
It will sound fine at first when gain is all the way down as it is at minimal amplification but when you turn it up it also amplifies all the noise and garbage you couldnt hear before.
Id say try steps 1 and 2 and get back with us if you further need assistance.
RTM
carfreak on 08/24/2003 22:31:32
The reason for the 4gage wire is there is two amps in the picture. I have the 4 gage running to a Dblock and then 8g running to each amp. I never mentioned the other amp as there were no subs hooked to it and did not know what it sounded like. I did move the rca and the power to diffrent sides of the car and It was fixed. I also found my power wire in the dblock was loose as well. No noise and the subs and all speakers work great. Thanks
carfreak on 08/24/2003 22:34:39
Ohh It is a gran prix 1999/
Relax_The_Mind on 08/24/2003 23:14:02
The other most common source of noise other than ground spot is the RCAs running parallel with the power wire. (especially with lower voltage pre-outs)
RTM
;-)
carfreak on 08/25/2003 19:02:38
Ok Now I have a slight noise when the accelerator is pushed . You can only hear it inbetween the songs or if the volume is all the way down. I moved the ground and still the same noise. My RCAs are close the the power wire in one spot and that involves taking out my back seat kids car seat and then taking out the bench and back. I am willing to tolarate it , but I was wondering if the RCAs could be the prob or would it be worth the $2 a foot to get some better 4 gauge wire. I think $2 bucks a foot Is outragous but thats me . They want 6 bucks a foot for 0 gauge.
Swez on 08/25/2003 21:09:00
Have a look here for a quality product line, at reasonable prices
LOOK: http://www.knukonceptz.com
Just click on the items you have interest in and get the details. Many I know are using these and very HAPPY with the results.
Swez
Swez on 08/25/2003 21:12:41
About the noise... try raising the gains on the amps you have between 2.0 and 1.5 volts. (input sensitivity) That may cut the noise a lot for now.
Swez
PS Your HU is 2.0 volts RCA outs (~60% volume settings)
carfreak on 08/25/2003 21:44:35
ok I will try that The noise is not hardly audible but its there. Would a Ground loop Isolator help me? So far the stuff I have read seems to point at that solution.
Swez on 08/26/2003 13:25:39
Maybe, but maybe not. GLI's are good when you have multiple amps and signal processors all in one loop. The GLI is a tranformer coupling device that passes low frequency and DC throgh a pair of coils. This helps filter out high frequency noise.
However, wne using aftermarket HU's, most forget to ground the HU to floor pan (not dash grounds) which often result in noise issues. Most noise issues are resolved with porper amp gain settings, good grounding and keeping the RCA signal lines away from main power feed wires.
Swez
carfreak on 08/26/2003 17:36:54
Ok thats one thing I did not do . You are not supposed to use the factory ground? Can you ground it to the frame that your deck goes in?
Swez on 08/26/2003 17:53:19
I find it best to drop a ground line right to the body pan, under the carpeting and as usual, to bare metal. Can use a modest ground wire here... #16/14 is fine and use a short, self tapping sheet metal screw (#8 x 1/2") and drive it into the bare spot.
Can predrill a small pilot hole for ease of starting the screw. Use an eye type crimp connector as your interface connection, just as is done in other parts of your car wiring.
Swez SMILE
carfreak on 08/26/2003 18:18:42
For my ground I was afraid to just go and putting holes in my car so I used one bolt already there. Maby I could get a self tapping screw and do the same there as well .
Swez on 08/27/2003 11:43:15
Yep, easy deal that way and a quality set of grounds too.
That HU you have... not the Alpine HO version that has a #10 power wire right? If you have that one, use #12 wire for the ground.
Swez
carfreak on 08/27/2003 16:50:42
It is a kenwood Iam not sure what the ground is as I just hooked it up to the factory wiring
Swez on 08/27/2003 20:32:13
Black is the ground on the HU side. Dash grounds are notorious for noise as they have so many devices in them to create poor ground references on Aftermarket HU's.
You may get by... but if noise will not go away, gotts ground the HU to bpdy as noted.
Swez
PS What... ya lazy or just tired today? Geez... am O preaching to my Dog only? She died 2 years ago SAD
carfreak on 08/27/2003 21:25:19
lazy more than likely ,, hehe why do ya ask. ?
Swez on 08/28/2003 06:57:28
Well, am trying to aid you in this noise problem... but you have to do the work....
If what you have now is not up to par, a little more tweaking should get you there.... Now get off your butt and do it right... SMILE
Swez
carfreak on 08/28/2003 17:08:06
lol Ok I will get on it I just need to get some self taping screws , I also got out and heard my system from afar and I rattle like I have a tool box in the trunk. Know where I can get dynamat or something like it CHEAP????
Swez on 08/29/2003 09:10:48
At most home centers, (Home depot/Lowes) there is a product used in roofing called "Ice Guard". It does the same thing as dynamat, but much cheaper. Can find it easily in colder climates. May be harder to obtain in warm southern locales. In the roofing department.
It comes in rolls, has a tacky rubberized side and a shiney metalic surface on the other side. This stuff sticks very well to horizontal surfaces like trunk beds and floor boards. But if you use it on vertical surfaces and trunk lid, may have to use some contact cement sprat like 3 M super 77 to make it stick well to vertical and inverted surfaces.
This is a very pliable and easy to cut and shape while warm. Just lay it out on the drive way, (tacky side up) in the sun for a bit, before you try to work it. Just be sure you get good adhesion on vertical surface as when this stuff gets warm in the car, adhesion may weaken w/o addition adhesive. (Liquid nails may be a good solution as well.) for adhesion improvement.
Swez
carfreak on 09/2/2003 06:15:04
Ok I grounded the deck / amps and It did not get rid of the whine, so then I reran all the wires (RCA) and finaly got rid of that whine . Thanks
I will look in to that Ice Guard to see If I can get it here in Nebraska Thanks
Swez on 09/2/2003 07:31:16
Nebraska eh?.... which part? I used to travel to Nebraska for business on a regular basis. Flying into Omaha, drive a few hours to Norfolk to do business wth Vishey/Dale electronics. If you are in the norther reaches of NE, am sure you will find Ice Guard or similar there.
Glad you got the noise problems fixed... good wires make all the difference.
Swez
carfreak on 09/2/2003 18:28:00
Never messed with new wires still the same as I had , Just made sure that there was not a RCA within 3 foot of the power wire and that did it.
North Platte Nebraska smack dab in the middle of the state
The lumber yards here are kind of a joke so I may have to go to omaha to get the stuff or have it ordered here .
Swez on 09/2/2003 22:41:40
Ahhh, yes... if the RCA's lack good RF shielding (braded/twisted pairs) they will pick up noie near power feed lines. If you cross them (Signal and power feed lines) at 90 degree angles only, this works most of the time.
Good deal! North Platte huh... never been there. Do they grow corn and soy or raise cattle/pigs in your area too? I saw a lot of both to and from Omaha to Norfolk, NE. Wide open space man... the heart land of farming.
Just be careful when booming through the cornfields... they have very sensitive ears.... LOL
Swez GRIN
carfreak on 09/2/2003 22:53:14
lmao
we do corn soy cattle some pigs not many pigs here
Yea there is lots of room to boom in the boonys here
But now I am on that rattle as soon as I can call the lumber yard
Replies (24)
Relax_The_Mind on 08/24/2003 19:51:39
What type of car...
1. A better multistrand power cable and ground may solve your problem as those thicker wires are probably acting like huge transmitters feeding noise into your system. For that amp I would think that a better multistrand 8 gauge would benefit you better (it only has a 35amp fuse. That way you wont have to break the bank also.
2. Also...do you have the power wire running seperatley from the RCA cables only crossing (if crossing anywhere) perpendicular. Its always good to run the power down one side of the car and the RCAs on the other. (remote wire doesnt matter)
It will sound fine at first when gain is all the way down as it is at minimal amplification but when you turn it up it also amplifies all the noise and garbage you couldnt hear before.
Id say try steps 1 and 2 and get back with us if you further need assistance.
RTM
carfreak on 08/24/2003 22:31:32
The reason for the 4gage wire is there is two amps in the picture. I have the 4 gage running to a Dblock and then 8g running to each amp. I never mentioned the other amp as there were no subs hooked to it and did not know what it sounded like. I did move the rca and the power to diffrent sides of the car and It was fixed. I also found my power wire in the dblock was loose as well. No noise and the subs and all speakers work great. Thanks
carfreak on 08/24/2003 22:34:39
Ohh It is a gran prix 1999/
Relax_The_Mind on 08/24/2003 23:14:02
The other most common source of noise other than ground spot is the RCAs running parallel with the power wire. (especially with lower voltage pre-outs)
RTM
;-)
carfreak on 08/25/2003 19:02:38
Ok Now I have a slight noise when the accelerator is pushed . You can only hear it inbetween the songs or if the volume is all the way down. I moved the ground and still the same noise. My RCAs are close the the power wire in one spot and that involves taking out my back seat kids car seat and then taking out the bench and back. I am willing to tolarate it , but I was wondering if the RCAs could be the prob or would it be worth the $2 a foot to get some better 4 gauge wire. I think $2 bucks a foot Is outragous but thats me . They want 6 bucks a foot for 0 gauge.
Swez on 08/25/2003 21:09:00
Have a look here for a quality product line, at reasonable prices
LOOK: http://www.knukonceptz.com
Just click on the items you have interest in and get the details. Many I know are using these and very HAPPY with the results.
Swez
Swez on 08/25/2003 21:12:41
About the noise... try raising the gains on the amps you have between 2.0 and 1.5 volts. (input sensitivity) That may cut the noise a lot for now.
Swez
PS Your HU is 2.0 volts RCA outs (~60% volume settings)
carfreak on 08/25/2003 21:44:35
ok I will try that The noise is not hardly audible but its there. Would a Ground loop Isolator help me? So far the stuff I have read seems to point at that solution.
Swez on 08/26/2003 13:25:39
Maybe, but maybe not. GLI's are good when you have multiple amps and signal processors all in one loop. The GLI is a tranformer coupling device that passes low frequency and DC throgh a pair of coils. This helps filter out high frequency noise.
However, wne using aftermarket HU's, most forget to ground the HU to floor pan (not dash grounds) which often result in noise issues. Most noise issues are resolved with porper amp gain settings, good grounding and keeping the RCA signal lines away from main power feed wires.
Swez
carfreak on 08/26/2003 17:36:54
Ok thats one thing I did not do . You are not supposed to use the factory ground? Can you ground it to the frame that your deck goes in?
Swez on 08/26/2003 17:53:19
I find it best to drop a ground line right to the body pan, under the carpeting and as usual, to bare metal. Can use a modest ground wire here... #16/14 is fine and use a short, self tapping sheet metal screw (#8 x 1/2") and drive it into the bare spot.
Can predrill a small pilot hole for ease of starting the screw. Use an eye type crimp connector as your interface connection, just as is done in other parts of your car wiring.
Swez SMILE
carfreak on 08/26/2003 18:18:42
For my ground I was afraid to just go and putting holes in my car so I used one bolt already there. Maby I could get a self tapping screw and do the same there as well .
Swez on 08/27/2003 11:43:15
Yep, easy deal that way and a quality set of grounds too.
That HU you have... not the Alpine HO version that has a #10 power wire right? If you have that one, use #12 wire for the ground.
Swez
carfreak on 08/27/2003 16:50:42
It is a kenwood Iam not sure what the ground is as I just hooked it up to the factory wiring
Swez on 08/27/2003 20:32:13
Black is the ground on the HU side. Dash grounds are notorious for noise as they have so many devices in them to create poor ground references on Aftermarket HU's.
You may get by... but if noise will not go away, gotts ground the HU to bpdy as noted.
Swez
PS What... ya lazy or just tired today? Geez... am O preaching to my Dog only? She died 2 years ago SAD
carfreak on 08/27/2003 21:25:19
lazy more than likely ,, hehe why do ya ask. ?
Swez on 08/28/2003 06:57:28
Well, am trying to aid you in this noise problem... but you have to do the work....
If what you have now is not up to par, a little more tweaking should get you there.... Now get off your butt and do it right... SMILE
Swez
carfreak on 08/28/2003 17:08:06
lol Ok I will get on it I just need to get some self taping screws , I also got out and heard my system from afar and I rattle like I have a tool box in the trunk. Know where I can get dynamat or something like it CHEAP????
Swez on 08/29/2003 09:10:48
At most home centers, (Home depot/Lowes) there is a product used in roofing called "Ice Guard". It does the same thing as dynamat, but much cheaper. Can find it easily in colder climates. May be harder to obtain in warm southern locales. In the roofing department.
It comes in rolls, has a tacky rubberized side and a shiney metalic surface on the other side. This stuff sticks very well to horizontal surfaces like trunk beds and floor boards. But if you use it on vertical surfaces and trunk lid, may have to use some contact cement sprat like 3 M super 77 to make it stick well to vertical and inverted surfaces.
This is a very pliable and easy to cut and shape while warm. Just lay it out on the drive way, (tacky side up) in the sun for a bit, before you try to work it. Just be sure you get good adhesion on vertical surface as when this stuff gets warm in the car, adhesion may weaken w/o addition adhesive. (Liquid nails may be a good solution as well.) for adhesion improvement.
Swez
carfreak on 09/2/2003 06:15:04
Ok I grounded the deck / amps and It did not get rid of the whine, so then I reran all the wires (RCA) and finaly got rid of that whine . Thanks
I will look in to that Ice Guard to see If I can get it here in Nebraska Thanks
Swez on 09/2/2003 07:31:16
Nebraska eh?.... which part? I used to travel to Nebraska for business on a regular basis. Flying into Omaha, drive a few hours to Norfolk to do business wth Vishey/Dale electronics. If you are in the norther reaches of NE, am sure you will find Ice Guard or similar there.
Glad you got the noise problems fixed... good wires make all the difference.
Swez
carfreak on 09/2/2003 18:28:00
Never messed with new wires still the same as I had , Just made sure that there was not a RCA within 3 foot of the power wire and that did it.
North Platte Nebraska smack dab in the middle of the state
The lumber yards here are kind of a joke so I may have to go to omaha to get the stuff or have it ordered here .
Swez on 09/2/2003 22:41:40
Ahhh, yes... if the RCA's lack good RF shielding (braded/twisted pairs) they will pick up noie near power feed lines. If you cross them (Signal and power feed lines) at 90 degree angles only, this works most of the time.
Good deal! North Platte huh... never been there. Do they grow corn and soy or raise cattle/pigs in your area too? I saw a lot of both to and from Omaha to Norfolk, NE. Wide open space man... the heart land of farming.
Just be careful when booming through the cornfields... they have very sensitive ears.... LOL
Swez GRIN
carfreak on 09/2/2003 22:53:14
lmao
we do corn soy cattle some pigs not many pigs here
Yea there is lots of room to boom in the boonys here
But now I am on that rattle as soon as I can call the lumber yard
Copyright ClubKnowledge 2009 * All Rights Reserved
