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I am putting a Jensen KA2500amp in my boat. I have power to it and it is turning on but my 2 10" subs make very little sound. The ground wire from the amp is hooked to the stereo ground. Do I need a separate ground wire for the amp? If so where can I hook it up at.
Norally grounding them in the same place is ok but it could just theres not enough power from the amp too power two subs try hooking up one and see if that gives you the sound your looking for
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first thing you should do is check your coax cables and wiring to the subs if that dont work see if your radio has a sub control to turn on the sound to the sub.
Its ought to. Thats what it was really marketed toward with the 2 channels bridged somehow and then put to individual subs in tandem. However, there is no built in crossover. This is a twenty year old amplifier and popular demand had not made it such that built in active crossovers came standard. In that sense its not a great choice for subs. My brother got one and it sounded like a## because he never bothered to add a crossover. Class a/b amps are sooper cheap right now. If moneys no object get a "2000w" amp for about 80 bucks on amazon or whatnot.
Yes, technically you can, however you will be putting both your sub and your amp at risk. One of the worst things you can do to a sub is underpower it. The easiest way to explain it is n ot giving enough power to the sub leaves it starving for power. The motor structure ends up working too hard to try and move the cone properly and what happens is the sub will usually seize up rather than blowing out in the term you usually hear (ie, I had my system cranked up and I blew my subwoofer).
Secondly, in an attempt to get any real sound out of the under powered sub, you'll probably end up cranking the gain and bass boost on the amp which ends up overworking the amplifier quite a bit and can in turn lead to fried out amp chips, burnt up circuit boards etc.
Thirdly, by maxing the gain bass boost you're going to end sending a lot of distortion through your subwoofer in an attempt to get some decent bass. Distortion kills both subwoofers and speakers alike.
So to answer your question, yes you can hook up your subwoofer to that amp and yes, it will probably play for a while but I wouldn't recommend it. Look for a class d or mono block amp to push your sub as these will give you the most power and best heat dissipation. They are designed to push subwoofers specifically and you will get better sound and longer life out of your equipment. A good rule of thumb is look for an amp within 100-150 watts of both your RMS power handling and your Peak power. Remember, when it doubt, always go a little bigger on the amp side of the spectrum. It's easy to "tune down" an amp by having the gain and bass boost at a lower level (50%, 25% etc), than to turn 'em all the way up just to get some bass and end up prematurely blowing out your sub, amp or even worse, both.
sounds like your amplifier does not have the power that your subs need check the rms out put on your amplifier and check how much rms your subs can handle if your amplifier has less rms power then your subs theirs probaly your problem that what happens when it kicks in to protection you could in up fring your out put chips in your amplifier not trying to say that the problem but check your rms power make sure the amp and subs can handle the same power
remote wire turning on amplifier?
Ground for amplifier?
Gain improperly set?
Radio output crossed over above tuning freq. of enclosure?
Just suggestions. Not much info to go by.
reinstall the factory radio use a digital volt meter to see witch wire supplies voltage when radio is turned on and off, note placement on harness then verify this wire is hooked up on the output side aftermarket harness you may have to jump it to get the maps to turn on. tip you can carefully pull unused wire from harness example (dimmer wire orange white) and move it to the position needed to keep it a clean install .
hi .let me see if i can help u out ...need more info on the speaker..are the 8ohm or 4ohm ? and are the single are DVC?.....from what i can see u can bridged the amp..and u must connet the subs in series or just connet each sub +/- to +/-..and that will give u a stereo mode... u will still get great sound
Set your Filter Switch to LPF. Turn the Bass Gain/ level all the way down temporarily. Set your Crossover to below 100HZ. Then Turn on the system with a Bass test sound. Turn up your bass Gain/level until you get distortion. Then turn it back till you just get the distortion out. Then do not warn everyone that you will De-nad them if they touch your settings.
by jump do you mean all it does is thump and no sound besides thumping noise? if so put a better ground on your amp, double grounds work the best. please reply
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