I have 10 inch subs in my car i dont know why but they wont really hit like if you turn the amp all the way up and stuff it vibrates a little bit just not like real subs should like it dont bounce the part its supposed to what is the problem i know the amp is very strong but why would it not still make them bounce????
It sounds like the wiring either to the amp or to the subs is put together wrong. This can be because you have them setup in stereo but have the sub on bridge mode or vica versa. This can also be from how you ran the audio input wither from speakers or rca..either wired wrong or the switch for the two options is wrong. Also make sure your gain is turned up. Sound also depends on what kind of box it is in. It HAS to be in a box.
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Well i tried looking up that amp, but Fosgate sight is down. So assuming that the best power out of your amp is 2ohms off the bridged hookup, and the subs are 4 ohms per coil, the best way is to only use one side of each speaker and hook it straight the the bridge. Only using one hook up wont hurt anything, its just for giving you wiring options. And when adding up ohms of speakers, it goes like this. If you had two 4 ohm subs, that'll give you a 2 ohm load. If you hooked up all your hookups, it would be like having four 4 ohm subs, and would give you a 1 ohm load.
not really a problem, your just running a the threshold of the amps comfort zone, a lil trick to raise your impedance a little bit its to run an additional 10 feet of wire before your sub, (longer the wire the more resistance) 10 feet should jump you up about .5 ohms. you wont hear the difference but your amp will fill it, and run a little better. 20 feet will give you right around 1 ohm. now if you dont mind loosing some power run the subs in series and then run them bridged. your amp will work harder, but run easier because its on a big open loop. but before all this take a multi meet and read out your voice coils to see what the ohm level is, then read out what it is at the speaker, then you will see 1. if the subs are okay, and 2. how much you need to raise your impedance for you amp to run comfortably.
Pull the subs out of the box and check the connections... Check to see if the wires running from the connectors on the sub itself to the voice coil... had a JL 10 that had a frayed wire to the voice coil system would cut in and out. Hope its helpful
Im guessing that it is possibly blown... either you ran too much power to it, or it was hooked up wrong... you should unscrew the sub from the box and look inside to make sure that it is connected correctly.... positive to positive, negative to negative,,, if they so much as touched then the L7 could very well be blown.... smell the magnet and if you smell a burnt smell... it is blown... maybe turn your amp down a little... its possible that it is also in protect mode because you are running too many watts to the amp. Feel free to ask if you have any other questions.... Please rate! :D And good luck... i really hope its not burnt out. that stuff is not cheap.