Question about Car Speakers & Subwoofers
I have an 02 Alero with factory monsoon system and h/u. I have installed an amplifier and 2 subs. I am running the main power from the battery and ground to chassis. I have purchased and installed the necessary 1k line converters and fed them from the rear deck speakers to the amp inputs. I have managed to power up the amp successfully but with a loud popping noise due to using an "accessory on" power supply from the fuse panel for my remote on. That is the first noise. Secondly, even with the volume of the h/u at 0, the amp will start to power up and as it does the subs start vibrating and going wooowooowoooo louder and louder until I disconnect the remote wire to shut the amp off. I am unable to use and power it up due to this vibration. Is there a simple solution?
Rewire your stereo cables as such:
Red- positive - battery
Black - ground - chassis
Remote (Yellow) - ignition switch
The "LINE OUT" should go to your SUB-WOOFER.
The while-lined wires paired with the solid colored wires are either your Front LR and/or Rear L/R.
Posted on Jun 14, 2010
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1000 W RMS @ 1.5 ohm - 4 ohm (11V-14.5V)
THD at Rated Power:
<0.05% @ 4 ohm
>95dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)
5 Hz - 250 Hz (+0, -1dB)
>500 @ 4 ohm / 50 Hz
According to the chart your amp is only stable down to 1.5 Ohms, so running at .75 Ohms the noise you are hearing is the amp clipping (running more power than it can handle at low ohms)
I would suggest wiring it in series, or you could adjust the gain on the amp until the popping goes away.
Hope this helps.
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