I am getting a high pitched audio whine from my equalizer. I have a head unit feeding the eq which feeds into an electronic cross over then to an amplifier. It is NOT sourced from the engine because it is there when the engine is NOT running. It is NOT the head unit because the noise is there when the head unit is off (face plate removed). It is NOT the electronic cross over nor the amp because it goes away when the eq output is unplugged from the cross over input. Does this model eq use some sort of inverter power supply that is generating harmonics?
SOURCE: No sound.
As you have indicated there is no sound at all in the out-puts available.What this could probably mean the out put ic is dead.Another thing to remember is to connect the red positive wire to the standby wire which is mostly yellow in color.
SOURCE: Equalizer setting help
try to use the preset equalizer settings after which you can come back to the parametric equalizer and adjust to your own taste. no problem if you don't connect the subwoofer just make sure you set the hi-pass filter to off so that you will hear the full range to your speakers. but, I advice you to put a subwoofer. There is more dynamics to the lower freqs too. don't adjust the source level if there is no problem. take note the EQ of your head unit is a parametric equalizer. hope this helps while you read about parametric EQs.
SOURCE: power supply connection for pioneer eq-6500
top left - orange.....goes to aux or memory wire
top right - blue.......goes to the remote wire used with amps
bottom left - black.......goes to the ground wire
bottom right - red........this goes to your hot wire
SOURCE: Equalizer Questions
IT is good to have separate eq from built in, because you can adjust or eliminate that you want to hear. For future problem please visit my site at http://billy-tech.blogspot.com/
SOURCE: my head unit resets settings when key is taken out
Do you have the yellow wire going to a constant 12v power source? The yellow wire controls the memory of the radio and needs to have 12v going to it at all times, even when the key is taken out of the ignition.
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