Help with my system?

Question

I have a single cab 01 ford f150. I have two 12'' Rockford subs and one 10'' Rockford. They are in a box my dad and I built. The rms is 150 on all. And I also have two 600 watt Sony amps. The system does not sound like it should. It barely vibrates the mirror. This is my first time working with systems. I don't know how to make you hear them outside the truck

Answer 1

First off grim you really have a lot to learn, you should stop giving advice now. There are no subs made that require them to be ported at all!

Airforce is pretty close to it though.

2 12's and a 10, 2 different sized subs with 2 different specs. When you install subs they all should be the same size and from the same manufacturer. Get rid of the 10, look up the specs on the 12's and build a bigger box. A sealed box will give you a kind of punchy sounding bass, a ported box will give you the boomy bass. Which subs are you running, that would be nice thing to know. That way we can know appoximately what they should be sounding so we can take into account what you have described to us what you are looking for. Since RF makes some loud subs and some that are not so loud.

Answer 2

could be the wrong box size or u have a loose connection with the wires runnin to ur amp...

check ur fuses

Answer 3

Could be a multitude ofroblems, wrong size box would be my first guess, subs require a certain amount of "air space" or volume inside the box, check with rockford for the amount needed for your subs, next could be wrong size or no port(hole) in the box, which may or may not be required by the subs, check with rockford, each sub needs its own sealed space inside the box, one big box, but 3 separate chambers inside. could be the polarity ( +/- ) on one or more of the subs are reversed, disconnect the wires to the subs and check each one separately, hook up a short piece of speaker wire to the sub, hold one wire on the negative terminal of a 9 volt battery, and touch the other to the positive and see which way the cone moves, if it moves outward away from the magnet, then you know which is positive and negative, if it moves in towards the magnet, then reverse them. have you adjusted the gain control on the amps? dont turn it all the way up, turn it to about 70%, will give you the best combo of power without distortion and also the low pass filter(if the amps have one). theres some places to start, good luck and happy thumping.

Answer 4

It's probably sounding exactly like it should.  

You've got two different speakers (the 12"s and the 10"), probably in a very improperly designed enclosure, being run on two different amplifiers.

That entire thing is a recipe for disaster.  

If you really want to fix your system, you've probably barely got enough space for the one 10" much less the pair of 12" subs.  So the first thing you need to do is calculate your available air space and then decide what the best combination of subs will be to use in that space.  My guess would be the 10", or maybe one of the 12" subs.  And then, connect one of those sony amps up to it.

If that is not enough bass for you once you've fixed the system, at that point you may need to shop for new subs that are more efficient and/or can fit more in the space you have available, and/or add more power.   Running multiple amps to subs can be tricky.  You need to have your gains matched exactly.  You're much better off just buying a larger amp that puts out enough power for all the subs rather then trying to wire one amp per sub.