Car Stereo Sub Woofer
Car Subwoofer Amps
Car Audio Subwoofer
Subwoofer Ohms
Pioneer Car Subwoofer
Car Subwoofer
Home Theater System
sub woofers for car
Here is where you will have to grab a generous length of speaker cable through the hole in the rear of the enclosure for obvious reasons. For example, if you need to figure out the current (amps) moving through a 12 volt circuit and you know the resistance of the circuit is 4 ohms; the equation would look like this: E = 12volts I = unknown R = 4 ohms I = E/R or I = 12/4 which is I = 3 ampsP = E*I (power equals voltage multiplied by current or watts = volts amps). It only takes a little bit of time and effort, but it is really worth it for a custom box design. The remaining subwoofer cables will tap into the leads for the right-rear and left-rear speakers.
10 inch car sub woofers manufacturer
If your radio does not have audio outputs of its own, you will need to purchase an amplifier that can accept a speaker-level input or you will have to get a converter that will convert a speaker-level signal to an audio cable signal. The table below lists what I would recommend for your box volumes for common-size drivers, but then again it's best to consult the manufacturer of the speakers you're considering in determining the best recommended box volumes. As this book deals with car audio we will be talking about the movement being our speakers. The shapes of the boxes you build are not important, once the system is only going to be used to produce low bass frequencies.
This section is about the electrical system in your car. This is important when building a subwoofer because it is the electrical system that you have to make allowances for and this is the entire reason that you even have a car stereo that runs in the first place. So lets get going!
A vehicle's electrical system consists of many parts but the ones that are the most important in dealing with subwoofers are the battery, the alternator, and the power wiring.
A vehicle electrical system generally consists of a 12 volt DC system. The primary source of power when the vehicle is not running is the battery. This is why you can turn the ignition backwards and the stereo system runs even though the car is not on.
The primary source of power when the vehicle is running is the alternator. This is a very important point to remember so please do. The primary functions of the battery are to start the vehicle and provide power when it is not running. Because the batteries stored power is so strong it is important to treat it with respect.
Your battery has the power to burn your vehicle up if an unfused power wire is shorted to ground. That is why you must remember to disconnect the negative battery cable before doing any work on a stereo system.
Depending on your car's factory issues electrical system, you may not have enough power to run a store bought stereo system in it. You probably do unless you have a multi-megawatt system or an extremely tiny alternator which is unlikely. If your battery goes dead on you after the installation of your new stereo you may have an electrical system problem. For this reason you should have your battery and electrical system tested by a qualified technician before making any additions or changes to your system. Here are some of the common problems that you will find and their likely cures.
1. Battery
Many people seem to think that adding a second battery will cure all of their electrical problems. The reasoning behind many people doing the second battery is a silly one. They figure that if one battery is good then two must be better. That just isnt true. You have to remember that the function of a battery is to start the vehicle and to provide power when the vehicle is not running and that is all.
The only thing a second battery will help you with is extending the listening time to your stereo when you are not running your car. Basically it will provide you the additional capacity to run your stereo longer without starting the vehicle. However, after the vehicle is started again the second battery becomes another load on an already overworked alternator. What will eventually happen is that you will have to keep replacing your alternator.
If you do replace your battery I would recommend getting one from Optima or one of the other specialty battery manufacturers such as Stinger, Lightning Audio or Rockford Fosgate.
2. Alternator
Most of the time that you find that you are experiencing frequent dead batteries, this is a sign that your electrical system isn't keeping up and you may need to upgrade your alternator. When you do this it will give you more juice to run all of your electrical components, including your stereo system, without hoping that your battery will do all the work for you.
The problem with doing this is that your alternator is undersized for your new electrical requirements and will be forced to look to the battery to provide the extra power, and this ends up with you having a shortened battery life. Have a qualified technician verify this before investing in a larger alternator.
Hopefully you can find a larger alternator from your vehicle's manufacturer that will work well with your existing system. Consult the manufacturer or the local dealer that you got the car from to find out about this. If you cant then you can look to the aftermarket manufacturers to see what is available for you.
3. Capacitors
Another solution to your problems could be to add a power or "stiffening" capacitor. This will acts as an electrical storage buffer. It stores power for you until it is needed for higher electrical demands such as carrying heavy bass notes. If your headlights dim when you have you stereo cranked up loud then this is one device that would seriously benefit you. This is most noticeable when music with a heavy beat is played such as hip hop and pop music. Your headlights will dim to the beat.