Car Audio Amplifier

Discussion in 'General Electronics Chat' started by Lanz, Feb 10, 2010.

  1. Lanz

    Thread Starter Active Member

    Oct 30, 2008
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    I had installed a car amplifier in my car.The connection is like this:Head Unit to Pre-Amp to Amplifier to Speakers.On the Pre-Amp and Power Amplifier has these inputs +12V,GND and Remote-ON.I know the remote-on function is to turn on the unit but can i directly hook it up from the car battery?Does this remote-on has any connection rules to be followed?Do this remote-on is connected to a relay inside of the amplifier?
     
  2. t06afre

    AAC Fanatic!

    May 11, 2009
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    The best thing to do is to feed your amp directly from the battery with a adequate cable(+12 volt). Then you connect the remote to +12 volt signal that is activated by the ignition switch. The remote signal will not require much current but your amp will do.
     
  3. Lanz

    Thread Starter Active Member

    Oct 30, 2008
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    Ok,can i connect the remote to +12v of battery?Will it give any problem?
     
  4. t06afre

    AAC Fanatic!

    May 11, 2009
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    Do you want it to be turned on all the time, even with the ignition off?
     
  5. Lanz

    Thread Starter Active Member

    Oct 30, 2008
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    Im sorry forgot to mention that i connect it with a switch.
     
  6. t06afre

    AAC Fanatic!

    May 11, 2009
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    The thing is that you do want to minimize the cable resistance (or impedance for that matter). Even a switch will include some resistance. If you are going to use a switch then place the switch on the remote input.
     
  7. BMorse

    Senior Member

    Sep 26, 2009
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    The "remote on" on the amplifier can be connected to the BLUE wire on the back of the stereo which is usually used for power antennas..... the amp will come on whenever you turn the radio on..... this is usually how it is done.... or you can put a toggle switch between the "remote on" wire and +12....

    My .02
     
  8. Lanz

    Thread Starter Active Member

    Oct 30, 2008
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    Before this,im using my CD player remote-on option but the player spoilt ready.Now im using FM Modulator which can read music files from pendrive n memory card.
    Yes,i aware of this.
    Yes,i use switch after my CD player spoilt.I just want to know wether its ok or not if i drag a wire from +12V for Remote-On.
     
  9. t06afre

    AAC Fanatic!

    May 11, 2009
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    The remote use very little current so you can take it from almost everywhere in your car that conduct +12 volt also directly from the battery via a switch.
     
  10. Lanz

    Thread Starter Active Member

    Oct 30, 2008
    153
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    Thanks for the info guys :)
     
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