Interesting find....dare to break belief and rules
Joined: Sep 2003
Posts: 249
Likes: 0
From: Pensacola, Florida
Originally Posted by S2KSuzuka,Oct 30 2004, 03:00 PM
ok, here is some info
1. Try not to use Coaxial type RCA's Twisted pair is much better at noise rejection.
2. While cables have gotten much better over the last few years, it is still a good idea to separate the cables. the most import thing is , Do not run the Rca's down the same side as the car harness. the reason is a lot of engine noise is radiated from the existing wires and sneak into the RCA's or the speaker wires. It's also a good idea to keep the power cable for the sound system away form the rca's and the speaker wires as well
3. Grounds.
A good ground, and or power connection is crucial. Run the amp directly to the battery, fused no more than 18' from the battery, and again on the amp side. If you're running thick wire (8ga and larger) the fuses will prevent your car from catching fire in the event you have an accident and the wire shorts to ground.
It's a good idea to run an extra ground wire from the radio area to the amp area. Ground loops can cause noise. Having the entire system grounded at the same point can eliminate this issue.
4. inexpensive amps, eq's and Xover's can can add to the noise issue. Mount the amp to a pice of wood and them the wood to the car. this eliminated a ground loop from the amp.
5. Noise that happens when you turn on the AC or the headlights.
Make sure the ground wire that goes to the block is secure. Check your battery. when a battery starts to go, it can still start your car, but it can be less effective in filtering out noise.
that is the end of today's rant
Mitch
1. Try not to use Coaxial type RCA's Twisted pair is much better at noise rejection.
2. While cables have gotten much better over the last few years, it is still a good idea to separate the cables. the most import thing is , Do not run the Rca's down the same side as the car harness. the reason is a lot of engine noise is radiated from the existing wires and sneak into the RCA's or the speaker wires. It's also a good idea to keep the power cable for the sound system away form the rca's and the speaker wires as well
3. Grounds.
A good ground, and or power connection is crucial. Run the amp directly to the battery, fused no more than 18' from the battery, and again on the amp side. If you're running thick wire (8ga and larger) the fuses will prevent your car from catching fire in the event you have an accident and the wire shorts to ground.
It's a good idea to run an extra ground wire from the radio area to the amp area. Ground loops can cause noise. Having the entire system grounded at the same point can eliminate this issue.
4. inexpensive amps, eq's and Xover's can can add to the noise issue. Mount the amp to a pice of wood and them the wood to the car. this eliminated a ground loop from the amp.
5. Noise that happens when you turn on the AC or the headlights.
Make sure the ground wire that goes to the block is secure. Check your battery. when a battery starts to go, it can still start your car, but it can be less effective in filtering out noise.
that is the end of today's rant
Mitch
where is the noisty car harness you speak of - is it on the driver side on the outside - do yhou think my RCA and speaker wire is ok where it is if this is the case I am going to try and fix everythying at once when so I don't have keep tearing things apart
Thread
Thread Starter
Forum
Replies
Last Post