The bass in my car magically disappeared...the subwoofer doesn't even buzz, does that mean the amp is blown??? but i checked the fuze on the amp and they are both ok....the sub wooker has a crack in the middle of the speaker, but the one crack couldn't cause it to not work. So i hooked up another woofer to test it and again, no sound...is it the amp? could it be lose wires? i think not because ebay installed them? the cd player? the crack in the woofer?
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Oct 13, 2012 - 12 posts - 1 author
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The level control controls the input level coming from your head unit (receiver) to the amp.
Your Sony users manual is a little vague on how to best adjust the level and other controls.
Here is one method that some installers use and works well with most amps.
Most 10" subs sound best between about 80-100hz and below, so start out by setting the LPF at about 80hz. The HPF will not be used. Next turn the bass boost and gain all the way down. Turn on the radio and set all tone controls, bass, midrange, treble to flat, usually "0" on most head units. Turn the volume up to approximately 3/4 volume level or just until you begin to hear distortion. Now, back the volume down until the distortion is gone. Next turn up the gain control on the amp until you hear the subs start to distort then back the gain down until the distortion disappears. Next turn the bass boost up again until the subs begin to distort, then either back the bass boost down or back the gain down until the distortion is gone. You may need to play around with the bass boost and gain controls to get exactly the sound you prefer.
As stated before, knowing the impedance of your subwoofer would really help the situation. Either way the link I have provided is to your subwoofers manual (Incase you dont have it)
But since you have said it has smoked, if it still works I recommend turning the bass boost down (Bass boost causes alot of heat within the subwoofers voice coil and even within the amp itself and should never be maxed out.)
Here is a link to your manual for the subwoofer. http://www.kicker.com/sites/default/files/SoloBaricL7Series.pdf
So as a solution to your issue, keep your bass boost turned down. You should almost never need it if you have tuned your amp correctly (You have a very serious subwoofer there)
Consider yourself lucky if your subwoofer is still working without issues.
Test it by moving the bass and treble up and down. If the buzzing seems disappear at lower volumes with little bass and appears from one side only, it is probably a blown speaker on that side.
If the buzzing is apparent even at very low volumes or from both sides, it is probably an audio board issue. I am not certain if your model has a separate audio board or that functionality resides on the main board.