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<blockquote data-quote="Jeffdachef" data-source="post: 8541215" data-attributes="member: 650438">Download an app called xplicit audio ultimate car app. There&#039;s a frequency generator on there,&nbsp; play the tones in your car and find exactly what frequencies make the sound. Go up in volume slowly.&nbsp;&nbsp; LPF should be somewhere around 50 to 80hzBass should be 0 on the factory head unit.&nbsp; The line out convertor has to be driven up pretty high and gain should be minimal.If your line out convertor cant drive a powerful enough signal, you need a better one that can.&nbsp; Your gains should be around 20-40% max to get strong output not 80%. thats just begging for distortion.In are seriousness, hope you really think about getting a proper head unit soon because stock head units give very dirty bass signals.&nbsp; A swap to a proper 4 to 5 volt preout head unit will get you 1 db&nbsp; to 6 db louder along with cleaner sounding bass.</blockquote>

[QUOTE="Jeffdachef, post: 8541215, member: 650438"] Download an app called xplicit audio ultimate car app. There's a frequency generator on there, play the tones in your car and find exactly what frequencies make the sound. Go up in volume slowly. LPF should be somewhere around 50 to 80hz Bass should be 0 on the factory head unit. The line out convertor has to be driven up pretty high and gain should be minimal. If your line out convertor cant drive a powerful enough signal, you need a better one that can. Your gains should be around 20-40% max to get strong output not 80%. thats just begging for distortion. In are seriousness, hope you really think about getting a proper head unit soon because stock head units give very dirty bass signals. A swap to a proper 4 to 5 volt preout head unit will get you 1 db to 6 db louder along with cleaner sounding bass. [/QUOTE]

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