hi hopefully someone can help me . I just recently bought another amp for my car and had my uncle install it. now he told me that i might get the noise in the speakers because of bad grounding and that he had a thing to get rid of the noise what exactly do i need to do or get? I have 2 phoenix gold octane r amps. one is a one channel 1,000 watt sub for my 12" KICKER L7 and the other is a 4ch 125 rms per channel that i have hooked up to my infinit kappa 5X7's and 6x9's. the four channel amp has a config switch the only way u can configure it is hp/hp and lp/lp. i want my fronts to have highs and rears to have lows there is also another config which is by/lp and when i leave it on this setting that is when i get the gas pedal buzz. when i put on hp/hp its too much highs out of thr front and rear and the lp/lp out of the front and rear. my question what would be the best way to configure it for sound quality? would i need an eq. also as far as the amp config goes. he wired the rca cables from the deck to the 4 channel amp on the same side of the car and the battery wire from the 4 channel amp he had connected into the battery connector on the sub amp same with the ground wire. I kinda didnt want him to install it but he did it for free so i was like what the hell but i really need to get rid of the noise cuz it is really annoying when the volume is low u hear it more than ever.
Also i forgot too mention that the wires on the 4 channel amp are only 10 gauge whereas the wires on my sub amp are 8 gauge can this play a big role?
Re-run your signal wires so that they are well away from any power source wiring. Disconnect your battery negative terminal before you do the following: remove and replace all ground wire-to-chassis points of contact, making sure you use wire brush and sandpaper to remove any paint from the area. No matter what crossover settings are used on the amps...grounding problems or signal saturation into the signal wires are the likely culprits of the noise. You should be able to solve this yourself. Read the stickied grounding topics at the top of this page for more info.
Crossovers will go like this: the 4 channel amp is running the interiors so it will be a HP/HP configuration. Adjust the crossovers on front and back to get the sound to your liking. The sub amp will use LP and you adjust that for a smooth transition of bass sounds to the fronts.
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