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Engine Noise with 640 watt amp


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gankstaflash 
Member - Posts: 35
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Joined: January 02, 2007
Location: Australia
Posted: January 06, 2007 at 6:53 PM / IP Logged  
hello,
I am very new to electronics so please be nice! :P
I have a '99 Corolla Sedan and have installed a panasonic head unit successfully(its awsum! xD). A few days ago I thought I would buy an amp for my car, and thats what I did. It's a Powervox 640watt pb-488(ebay ;)). Here is the link. I also bought some 8 gage power and speaker cables.
We decided to install the amp under the passenger seat, becuase it would mean less wiring. I re-wired all the speakers with new thick 8 gage wires. I took the power for the amp directly from the battery terminal, with a 60amp fuse near the battery and wired it through the firewall and under the carpet.(Is this the right way to wire it?) I connected all the wires to the amp(pre-amp out, speakers, power, ground, remote) and it works! xD. When I started the car I started hearing engine noise from the speakers(which is really annoying). When u rev the car the noise's pitch gets higher.
I think this is because all the wires are running the same way to the amp. How do I stop the engine noise from happening? Is there some sort of engine noise filter or something?
Please help me,
thank you
killer sonata 
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Posted: January 06, 2007 at 6:57 PM / IP Logged  
do a search for alternator whine and amp noise. all of your answers are already posted.
KarTuneMan 
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Posted: January 06, 2007 at 9:45 PM / IP Logged  
Your link leads nowhere!
aznboi3644 
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Posted: January 07, 2007 at 2:35 AM / IP Logged  
Link does not work!!! lol
And did you seriously run 8 gauge speaker wire??? lol
How did you ground the amp??
Does the noise go away when you disconnect the RCA cables??
and did you get those power wires from ebay for really cheap because if you did than they are real 8 gauge wires
gankstaflash 
Member - Posts: 35
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Joined: January 02, 2007
Location: Australia
Posted: January 07, 2007 at 2:56 AM / IP Logged  
Sorry, I don't know why the link doesn't work.
Here is the link for the amp: http:///.com.au/dll?ViewItem&ih=019&sspagename=STRK%3AMEWN%3AIT&viewitem=&item=290065214590&rd=1&rd=1
Here is the link for the wires: http:///.com.au/8-Gage-Power-Cable-Amplifier-Installation-Wiring-Kit_W0QQitemZ280067235412QQihZ018QQcategoryZ102568QQrdZ1QQcmdZViewItem
Sorry about that ;)
1.) I grounded the amp by connecting it to a screw which goes to the chassis
2.) Yes, the noise does go away when I disconnect the RCA cables.
3.) I don't know ;)
Thanks
gankstaflash 
Member - Posts: 35
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Joined: January 02, 2007
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Posted: January 07, 2007 at 3:00 AM / IP Logged  
Really sorry! Those links don't work either!
after "http://" add "cgi. ebay" and delete the extra "/"
Sorry, but they dont seem to work when I copy and paste :S
haemphyst 
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Joined: January 19, 2003
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Posted: January 07, 2007 at 4:03 AM / IP Logged  
They don't work, becaue ebay auctions are specifically filtered out by the12volt servers. You didn't REALLY read the forum rules, did you? Engine Noise with 640 watt amp -- posted image.
It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
3cc_installer 
Copper - Posts: 43
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Joined: December 21, 2006
Location: United States
Posted: January 07, 2007 at 4:31 AM / IP Logged  

ok let me try to break it to you easy. 

#1 you should run the power wire & remote wire on the oposite side of the car as the RCA cables

#2 engine noise is either caused by not doing #1 or a bad ground.  Ground your amp to the floor board of your car.  You should use some type of self tapping screw and a star washer.  you also need to scuff the area where you are grounding the amp, it should be bare metal.

#3 if you have completed the first two steps and are still experiencing engine noise you can try changing the RCA cables.  Hopefully you have a good pair of RCA's, (probably not)  anyway, if the RCA's have a wire attatched to them (most good sets will have this) try grounding this wire on the radio itself.  there is probably some screw you can loosen up to attatch the wire to the deck.  if that don't work, try grounding the wire to bare metal somewhere under the dash.  DO NOT USE THAT WIRE AS A REMOTE WIRE!!!  That is not was it is intended for!

#4  if you completed steps 1,2&3 and you still have a problem, you have 2 options.  A: bring it to a professional or B: go buy a ground loop isolater.  connect the ground loop isolater behind the redio to your RCA jacks.  Ground the wires coming off the ground loop isolater to the chasis of the radio and a ground.

Good luck!

Jared Nixon - A.K.A Jsmoke
3rd Coast Customs
Lake Charles, Louisiana
gankstaflash 
Member - Posts: 35
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Joined: January 02, 2007
Location: Australia
Posted: January 07, 2007 at 5:11 AM / IP Logged  
haemphyst wrote:
They don't work, becaue ebay auctions are specifically filtered out by the12volt servers. You didn't REALLY read the forum rules, did you? Engine Noise with 640 watt amp -- posted image.
Must've missed that Engine Noise with 640 watt amp -- posted image.
Sorry
gankstaflash 
Member - Posts: 35
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Joined: January 02, 2007
Location: Australia
Posted: January 07, 2007 at 5:25 PM / IP Logged  
Do the normal speaker wires have to run opposite the power and remote wires?
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