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  #1  
Old 07-20-2010
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more sub help.....

i have an 8 ohm kicker 10. it works at 6 ohms cuz thats wat the home stereo i had it hooked up to was running it at and it sounded good. but my amp in my truck runs at 4 ohms. is there any way to make the sub work with that amp?
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Old 07-20-2010
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pretty much can i make a 4 ohm amp run a sub at 6 or 8 ohms or do i have to buy a new sub.
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Old 07-20-2010
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absolutely... its less stressful to the amp to run higher impedance (ohm) speakers. and your system will be more efficient per watt of power.

just to clear things up, your amp does not run at 4 ohms (that just tells you what resistance it was rated at for power output). It runs at whatever ohm the sub is.

So your amp would be running at 8 ohms with a 8 ohm sub on it. same with your home stereo. it was running at 8 ohms also.

If you put a 4 ohm sub on the amp then it would run a 4 ohms. get it?

let me know what sub and amp your running.
I can sort of give you an idea of what to expect from the combo.
also what type of box do you have the sub in?
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Old 07-20-2010
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then why does my sub keep going into protect mode? it worked for about half a song and now it wont work at all. but i hooked it up to the home stereo again and it works fine?
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Old 07-20-2010
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its a kenwood kac 5204 350 watt amp with an 8 ohm kicker comp 10'
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  #6  
Old 07-20-2010
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its in a sealed box
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Old 07-20-2010
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well your going to be a bit under powered. your amp is the weak point.

In a sealed box (depending on its internal volume) power rating on the sub will increase typicly.

optimum power would be in the 200-300 watt RMS amp. your amp is actually rated at 150w RMS (marketing tricks)

Thats not saying your sub won't work. it just won't be giving you its full potential.

One thing you must remember when adjusting the gain setting on the amp is that you do not have enough power to run the sub as loud as it will go.
You will have to listen for the tonal change that happens when your amp is over driven. that will be your maximum gain level. it can be hard to hear if you've never heard it before.
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Old 07-21-2010
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there is no gain ajustment on my amp. the only one there is is input sesitivity.
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Old 07-21-2010
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I'm pretty sure that's just another name for gain haha
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Old 07-21-2010
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ohh well i turned it all the way down an still nothing
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Old 07-21-2010
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Your amp goes into protection? i missed that part till now. disconnect the sub from the amp,then cut the power to the amp for about 10 secs. then power up your amp. (leaving the sub disconnected) does the light go away?

now, with the gain/sensitivity **** all the way counter clock wise. re attach your sub (with amp power off)then turn the amp back on. see if it goes into protection. let me know what the out come was.
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Old 07-21-2010
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ok illl do that right now.
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Old 07-21-2010
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ok i did that and i cut the power for a little more then 10 sec but the light never turned off? nothing changed
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Old 07-21-2010
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He means pull the power wire and ground wire out of the amp for 10 seconds.
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Old 07-21-2010
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thats not good man.

1)check to make sure your polarity is correct on your power connections.
2)make sure there is no small wire fragments shorting the amp.
3)remove rcas from inputs, try resetting procedure again.
4) disconnect amp completely for a hour to a day. then just connect the power, ground & remote wire and check for the light

5) amp has a blown transistor. return if possible, and get a replacement amp.

or

6) buy my amp (ill even give you a special discount)
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  #16  
Old 07-21-2010
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Quote:
Originally Posted by rangerboy101 View Post
He means pull the power wire and ground wire out of the amp for 10 seconds.
hes right...
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Old 07-21-2010
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ohh ok let me try again. i bought the amp from my friend and it worked wen he took it out of his truck.
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  #18  
Old 07-21-2010
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how much would u want for ur amp? and wat amp is it?
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Old 07-21-2010
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Who?

EDIT: Nevermind haha
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  #20  
Old 07-21-2010
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kenwood KAC-8104D 300w rms Mono class-d. less then 4 months old. sell it to you for $85 shipped. paid $129 for it. it would power your sub perfect. it also has sub sonic filter and adjustable crossover.
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  #21  
Old 07-21-2010
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ok. well itll take me while to get the money :/ got no job hahaa but if i get the money and u still have it then i will forsure buy it.
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  #22  
Old 07-21-2010
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Alright sounds good PM me anytime!
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  #23  
Old 07-21-2010
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ok. i will.
thanks for all the help.
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