Question about Alpine IDA-X300 Car CD/ MP3 Player

3 Answers

Subwoofer makes a loud bass machine gun noise when powered up

Hi, I have an alpine ida x-300 stereo in my car with 2 500w subwoofers and a 1200w amplifier in my boot. The system used to work absolutly fine until the last few months. Now when i power up my system the subs make a VERY loud machine gun sort of bass tone for around 2-3 seconds as they power up but then play absolutly fine for hours and hours until i turn off my stereo and turn it back on at where the subs make the noise again. Even when the volume of the stereo is on 0 it is the same loudness as if the volume was on 30. (It is so loud it makes you jump.) The noise is now extremely annoying and even embarrasing when for example in a car park turning on my stereo ready to leave. I have tested all of the connections and they seem fine. I was wondering if installing a capacitor would help :S Could someone please help me! I would really appreciate your suggestions, Thanks.

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  • Rakyth May 11, 2010

    Sounds fun :D



    Capacitors turn an alternating current into a smooth, steady current, in fact, this is why LEDs fade out when the device is turned off.



    I'm not an audio guy, but your setup sounds power-consuming. Try getting your battery checked, as the 2-3 seconds of loud could be your battery struggling to keep up with the load :P

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Are your power wires on the same side as your RCAs? Is so, i would buy a new rca cable and run it on the other side of power wire. For example i have my power wire on passenger side and the rcas and speaker wire in driver side.

Posted on May 23, 2016

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Stop terrorizing your community or I'll set your car on fire you selfish *****!

Posted on Mar 02, 2011

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Well, I have the same problem and I would think it has something to do with the RCA-connections. If I power up my head unit while I have my main fuse for the amp's removed and then replace the fuse as the head unit is already playing music (thus putting out a current through the RCA-connections) it works just fine. But if I just power up my stereo with the fuse in, my subs go all crazy. I guess it has something to do with disruptions in the rca cable. Maybe they are drawn too close to some power cables or speaker cables? Good luck!

Posted on Apr 14, 2009

  • Conciti Mar 02, 2011

    Stick that stereo bass up your *** you selfish ************!

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