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Question:

Need help with car audio please???

i just upgraded from a p200-2 to a t500.1 they are rockford amps. i had the p200 powering two alpine type r's. abc warehouse told me i was severely underpowering them and continuing to do so would ruin them. they hooked up 4 gauge wiring but kept my fuse and fuse holder. i plan on buying the bigger fuse holder and the 200 watt or voltage (idk how they measure them) fuse for the amp but i was wondering if i could use it for a couple weeks until i have the time and 40 bucks to buy and install these parts. they also told me that my jvc cd player doesnt have the right input for subs even tho ive been there 3 times with that same cd player and they never told me this. heres a list of my stuff. 2 alpine type r 12 inch subs in a q-logic ported box. a jvc cd player ( i payed round 150) a rockford t500.1 amp, 4 gauge power and ground wires, 8 guage rcas, and remote wire, a fuse holder that came with a 8 gauge amp wiring kit and a 80 watt fuse. what would you do next if you were in my situation?

Answer:

He is correct, you cannot damage a sub by underpowering them, that is just a myth. You can damage them however by going more then 10% over the rated wattage. Your head unit doesn't effect your subs it only effects the speakers wired to it. Since you upgraded and you only have an 80amp fuse, you will need a bigger one. You need one that matches somwhat close to your fuses on your amp, I am running a 100amp fuse on a 750w amp and im sure your amp is much larger.
For feeding music to the audio device, comparable stuff. for determining to purchase ability to the amps, must be lots larger because of the fact of decrease voltage. And earlier you waste lots of money blowing out your ears, making it tricky to concentration on site visitors, and stressful the heck out of your associates, why no longer basically placed on earphones particularly of transforming into a wheeled growth field?
the reason they said underpowering them is bad is because people usually just turn up the volume to make up for lack of watts. when you turn up the volume too loud the signal gets distorted and distortion is what will ruin your sub. Distortion kills subs not watts. i've heard of people pumping twice the recomended watts to a sub without problems.
The guy above me is rightexcept for one part Surprisingly, too little power can also damage your subwoofer — in fact, it's actually more common than damage caused by overpowering. Too little power WILL NOT DAMAGE ANY SPEAKER!!!!! And it is in no way more common than damage by underpowering. It is true that underpowering subs will damage them is a myth. It most likely got started when a couple of know nothings got together and started tinkering with the settings on their amp. Theory goes like this. They probably had too small of an amp and were messing with the gain. Gain is not to be used as a volume control, but as a way to match the RMS being produced by the source to the input of the amp. So, that being said, the know nothings had an amp that was too small for their particular setup, which would be perfectly fine if the gain was set right. But, their amp wasn't producing enough watts to provide sufficient volume for them, so they crank up the gain to max, which is what caused the subs to blow. Whenever you crank up the gain on an amp that is too small for a particular setup, you're basically telling the amp to produce more power than it is able to. As a result the amp clips the audio signal and it becomes distorted. The distortion for the clipped audio signal that was achieved by improper gain settings of an amp that was to small is what caused the subs to blow. Not underpowering.
you could use the fuse, but its not really large enough to protect your wire (could burn out and cause expensive electrical problems) if i were you i would wait to play the sounds until i had everything connected properly with components with the proper rating and its true about under powering If you send too much power to your sub, you risk damaging it. The cone of the speaker and the mechanical parts that make it move may break under the stress. Surprisingly, too little power can also damage your subwoofer — in fact, it's actually more common than damage caused by overpowering. When the volume is turned up and the amp doesn't have enough power, the signal becomes distorted, or clipped. This distorted signal can cause parts of the speaker to overheat, warp and melt. Not good! You don't have to match speaker and amp wattage's exactly. An amp with a higher output than the speaker's rating won't necessarily damage the speaker — just turn the amp down a bit if you hear distortion from the sub and don't run the speaker at extremely loud volumes for lengthy periods. Likewise, you'll be OK with a lower powered amp if you keep the volume down and don't feed a distorted signal to the sub.

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