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If you are experiencing chirping or bottoming out the problem is you probably have your bass boost turned all the way up, your frequency responses probably turned all the way up, the speakers may not be able to handle that low of a Hertz, basically anytime you turn everything up on your amp you're going to get more and more disturbance this is most likely what you are hearing if you turn your bass boost down and turn your gain all the way down and the problem stops then this will be your solution, and it is an easy fix all you have to do is keep turning up your gain until you start noticing the Distortion then dial it back 10% you should never use bass boost on an amp it destroys the amp and definitely destroys the speakers
How I tune:
turn amp all way down or disconnect rcas for now, turn up stereo to a song with some bass you listen to and crank it as loud as you would (not max about 3/4, use this to tune inside speakers (don't have bass maxed/distortion...)). Now dial in amp: turn up a bit probably to 1/4 or so then tune frequency I'd usually say around 100hz, then adjust gain again to where it sounds good...be easy on them for awhile to let them break in (don't blast them all day!). Usually bass boost is only 1 frequency with a curve (40hz or something)...so I try to not use it much....
To start, turn the gains on your amp all the way down. Bass boost should be off (this us used if you listen to your subs at low volume, the boost will heat your amp up quick if you use at high volume). Then turn the volume on your headunit up to 3/4 full. Make sure the filter on your amp is on low pass. The crossover point should be at it's lowest too. With all these in place, you can begin turning up the gain. You will have to decide at what point to move the crossover point. Since there are different styles of music, you will have to listen to where you feel notes are "dropping off" from the music. Adjust the crossover point to your liking, but remember that subs were made to reproduce low frequencies. Hope this helps
yea for sure thats a good upgrade. You shouldnt havebeen able to blow the kenwoods with 400 watts though-meaning that they probably blew from distortion which causes heat(fast) Check your gain on the amp start it out at 1/4 gain and turn up your deck to the point where you can hear distortion from your mids and highs or to the maximum level that you listen to your music at. If you're jamming out at a level that is causing distortion then you will be sending a distorted signal to the amp as well. The amp then amplifies the distorted signal through the subs which overheat and blow. So find the distortion spot and then turn it down just a little bit till it clears up your sound-then adjust your gain on the amp up slowly until you cant hear it getting any louder. Once you have done that you have reached the limit of CLEAN power that you are going to get.Thats where you want to keep it. Watch the bass boost too if you have the bass up on the deck and then crank up the bass boost on the amp it really f's up the signal too. Good luck
make sure the impedance is right for the amp you're using. If you're using a 4ohm amp and a 2ohm sud that may be the problem. It may be overdriving the amplifer which is bad and can cause damage to the amp. Hope this helps.
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.
Both the bass boost and the gain generally do the same thing, except the bass boost is essentially "additional gain" at a particular frequency (in this case, 45Hz). I would suggest lowering the bass boost (10?) and adjust the gain. Honestly, you may have to play around with both settings until you find a happy medium. There is going to be a maximum the amp can provide no matter how you get there. Hope that helps!