I need help with my amp. its an older amp. it is 1400 watts and the brand is magna audio. got it off ebay a long time ago. it would make my sony xplod p5 700 watt 12inch subs hit good but it started to make a fuzzy noise from the amp itself. when it is supposed to hit it sounds like i am running a 2 watt amp or something. i do not know jack about ohms and rms or any of that stuff. i do my own wiring and have been for 7 years now. please help.
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Oct 13, 2012 - 12 posts - 1 author
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That all depends on the wattage of the subs. also the independance of the subs. If your amp is 1400 watt, maximum you want is 2 600watt subs. if your subs are higher you will blow your amp eventually as your amp isnt powerful enough to pump out to that level.You should never have your amp fully turned up to max, 80% is perfect and will not make your amp blow. Hense why you want your subs less than the max output of your amp.
Your amp is overheating as your speakers all combined are 680 watts, double your max output on your amp. Ideally you need a 1000 watt amp to do the job and for perfect sound as you should never have your amp up to max as it is more likely to blow quicker. The 2000 watt amp your are speaking of will do the job perfect, but you need to keep the gain down around 50% as you could blow your speakers. But yeah all together you are right, the 2000 watt amp will stay cool as doesnt have to work nowhere near as hard as the one you have currently.
you shouldn't need another batter. You aren't going to be disipating that much power all of the time. Your 2 Farad capacitor will help when the amp demands a lot of current during large bass hits. Just a question though, you say you have A CVT12 which is rated at 400 ohms rms and you are driving it with a 1400 Watt amp. Does this strike you as odd?
your probably making your amp run to low ohms if its a 2 channel amp bridged to one channel you can probably only run it at four ohms
Also seeing as your subs are 2ohm dvc you can't wire them individually to 2ohm and use each channel separately. So i'd recommend buying a 2ohm stable monoblock or running it at four ohms. a 1400 watt amp'll still pound at 4ohms and it'll extend your amp's life span
Do not buy a second battery without first upgrading your alternator and wiring for the added draw. Adding another battery will make the already stressed alternator work even harder. Find an amp that has sufficient wattage to drive both subs at rms. If your subs are each rated at 600w rms then look for a 1200-1400 watt amp. Good brands are a dime a dozen these days and you don't necessarily need a kicker amp. If you wish to upgrade alternators i would suggest searching for OhioGen or Ohio Generator. .They make alternators for high current demanding systems and multiple alternator system solutions. As for amps look at names that have been around for a while like Mbquart,Soundstream (older stuff like rubicons...) ORION (older HCCA models are great) and such.