How Active Crossover works
Crossovers are a very important part of the stereo system of the car. They are generally meant to filter the signal by allowing a particular frequency and send it to the amplifier to give a clear audio with maximum clarity. There are two types of crossovers passive and active. The passive crossovers have the possibility of causing loss of volume due to disturbance and are also considered to be hard to control and adjust it. They are placed between the amplifier and speaker. On the other hand the active crossovers remove the line signal and provide a better sound quality. The adjustment of the active crossovers is comparatively easier to adjust. Since the active crossovers play an important role in providing clear audio, this article discusses some directions on how to set up active crossover.
A three way crossover is typically used for audio systems in car. Therefore for setting up active crossover, the following things will be required: three way active crossover, a tri amped audio system, and few basic tools.
In the first step, the active crossover is mounted somewhere between the head unit of the stereo and the amplifiers of the system. There are two options of the location of the crossovers. If the crossovers do not have to be disturbed or adjusted after installing it, they can be placed below the panel of the dash. This way it cannot be disturbed. But in case the user wants it to be easily accessible for repairing, it can be placed below the seat or in trunk.
Then all the possible electrical connections are made. The crossovers run approximately for a dc voltage of about 12. A suitable connection to the battery is needed. Suitable Ground line should run to car’s chassis. Connection to the electrical signal which is switched by means of ignition should also run. It is done to prevent the battery getting drained while the car does not run. To know about wiring instructions, the literature should be consulted as it is a vital part in making the connection work properly.
The crossover low pass filter is set at 80HZ. This set up is required so that this one will allow the kick and bass drum through it. The above mentioned background is used for the routing between subwoofer amps and outputs.
The low pass of the crossover is set at 8o Hz. This ensures that sound below this frequency is passed to the subwoofer amplifier. The high pass is set at 3000Hz. This passes the sound above this frequency to the tweeters.
The cross overs are adjusted based on the music and the taste of the listener. This is done to match the speakers and amplifiers. Moving one frequency range must be accompanied by adjusting the other accordingly. The mounting of the cross over must be made in an easily accessible area.
The final step is to make sure the system is set up properly. This can be done by playing some music and adjusting the filters in such a way that is comfortable to listen. Once these steps are followed the audio clarity is improved. Therefore these directions on how to set up active crossover would be useful for setting up the crossovers and improve the quality of the audio.
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Just to top the great day off, my car stereo remains intact. #phew
You'll most likely have to use a "dash kit" to install your new deck. That's what this is:
http://www.amazon.com/Stereo-Install-Taurus-wiring-installation/dp/B000KL2LXI
Well…. I built one of these when I was a kid, like 20 years ago and it wasn't a big deal then, so I'm thinking it's still not a big deal now.
Hell I even mounted one on a motor scooter once after building a converter to step up the voltage so it would run the car stereo and the CB radio I had strapped to the box I made for the luggage rack (not like you can call that a rack but I digress).
While this is a great way to learn about electricity and such, and how to wire up a car stereo, there's nothing ingenious about this project, and this post is another glaring example of the lackluster crap that you're willing to post here in an effort to fill pages.
For god sake's man, leave this kind of kids tinkering for instructables.
Who would write this sort of thing? …
” … I have a strong preference for line level active dividing networks ahead of the power amplifiers. In this approach the power amplifier output is connected directly – except for a very low resistance speaker cable – to the voice coil of the driver. The amplifier takes maximum control over the motion of the speaker cone which gives a greater sense of clarity and dynamism compared to a passive dividing network between amplifier and driver. Active crossovers make much more effective use of amplifier power. A clipping woofer amplifier is not seen by the tweeter, which has its own amplifier. The clipping of the woofer amplifier may not even be noticed in this case. It would surely be heard with a passive crossover, where it might even overheat and damage the tweeter, because of the large amount of high frequency energy in the clipped signal.
Crossover filters for a speaker usually incorporate frequency response corrections for the individual drivers to obtain a desired overall response. The active network has the advantage of correcting easily for different sensitivities of drivers and equalizing not only the individual drivers but the combined response as well. Not having to deal with the interaction between driver impedance and passive filter network gives the designer of an active crossover/equalizer much greater freedom and control to develop a superior product.”