buzz noise from eq

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djfearny2

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Joined: September 23, 2002

Location: United States

Posted: September 26, 2002 at 4:36 PM / IP Logged

i put a eq in a car with a four channel amp and a bass amp . when i connect the rcas to back of radio no noise at all but when i connect brand new eq i get engine noise is there anything that maybe (jeff from velosity) or th 12 volt can help me with what can i do to maybe isolate the noise cause like i said i dont get it when i use rca on radio but i need eq cause it have a 1/8 inch minuture plug headphone size plug and they want to use that to connect mp3 player. please tell me or email me at djfearny2@aol.com

trusdamanr

Copper - Posts: 116

Joined: May 15, 2002

Location: United States

Posted: September 26, 2002 at 7:35 PM / IP Logged

make sure you arent running the rcas next to the the power wire going to the amp... try to run all rcas down one side and the power down the other,the same side of your battery is more prefered.... what is the eq mounted on to... also run a try running set of rcas outside the car from the radio to the eq and if the noise goes away change the rca cables

djfearny2

Silver - Posts: 810

Joined: September 23, 2002

Location: United States

Posted: September 27, 2002 at 4:47 PM / IP Logged

the rcas are fine and they are an opposite sides now i dont get the sound from the radio it self connected to both amps but when i add the eq bzzzzz everytime the engine is running i am thinking it is the eq

Jon

Installer/Help Technician

---coral springs florida---

mecp certification is not always needed. I have it and it has not helped me out at all. my experience out shines it.

trusdamanr

Copper - Posts: 116

Joined: May 15, 2002

Location: United States

Posted: September 27, 2002 at 5:03 PM / IP Logged

recheck all the grounds try to ground the amps and the eq at the same point....also is the noise constant turn the volume down all the way and rev the engine does the noise stay or disappear..also where is the eq located at in the install try moving it around to another place ....good luck

djfearny2

Silver - Posts: 810

Joined: September 23, 2002

Location: United States

Posted: September 27, 2002 at 5:08 PM / IP Logged

the eq is by the radio, cant ground the eq and amps together cause than one of the grounds will be to long and probably make sound louder and yes it is constant ass long as engine is on . also when music is low . very anoying. i put diodes on power and ground of radio and eq and killed th noise 30 percent but dont know what else and like i said if i dont use eq and just use rcas to the radio no noise no problem so i figure it is the eq.it self

Jon

Installer/Help Technician

---coral springs florida---

mecp certification is not always needed. I have it and it has not helped me out at all. my experience out shines it.

Dan M C

Copper - Posts: 220

Joined: June 10, 2002

Location: Romania

Posted: September 27, 2002 at 6:02 PM / IP Logged

Sorry if i'm off the topic but is it posible to kill hiss/noise with diodes ?,i'm having similar problem with my system so if diodes are the answer what kind/type do you guys recomend ?

Thank you buzz noise from eq -- posted image.

Dan M C

djfearny2

Silver - Posts: 810

Joined: September 23, 2002

Location: United States

Posted: September 27, 2002 at 7:17 PM / IP Logged

it may work for you what you want is 1amp diodes place on poss and neg of eq it does kill a lot of the noise, they only work in one direction so make sure you place in line with wires and if you get no responce flip and then touch together. do one wire at a time what i mean is leave on connected normally and do negative first.

example

wire-------------|diode|---------wire

connect with fingers first before taping or using butt splices to make sure right connection is good . if you have a remote turn on for this eq you will need to add one to that too. they are two packs and cost 1 dollar . at radio shack what you will get is 1 amp 200v max diodes .

Jon

Installer/Help Technician

---coral springs florida---

mecp certification is not always needed. I have it and it has not helped me out at all. my experience out shines it.

djfearny2

Silver - Posts: 810

Joined: September 23, 2002

Location: United States

Posted: October 02, 2002 at 1:37 PM / IP Logged

well i took car of my system i killed the noize , it was the eq. i opened up the eq and grounded the input negative side of rcas better with a wire sodared from the negative wire to the two input neagtive sides of rca . these are grounds anyways so i thought what the hell i'll try it i mean i have done the same thing to radios before and killed it but this is not recomended right away for anyone . what you should do fist is ground a wire and touch it against outer part of eq (quick) with some units this is not good so for those engine noise people heres a try.

Jon

Installer/Help Technician

---coral springs florida---

mecp certification is not always needed. I have it and it has not helped me out at all. my experience out shines it.

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buzz noise from eq

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