By: Jack Wylde
Submitted: 2010-02-01 18:15:27 | Word Count: 504
The following article shows how to set an active crossover. They are important for all audio system. By means of frequency the signals are filtered and for better clarity they are directed to the best amplifier and speakers. Generally any car audio system should have an active crossover to be used. They are also used in public meetings and in theatres mostly. An audio system namely the tri amped is an active crossover and is needed to install the crossovers.
First the crossover is mounted between the system’s amplifiers and the stereo unit. If it is not planned to adjust the crossover after installing, the crossovers are placed in back of the race panels and that option is considered to be good. The cross over unit is installed near the amplifier and so the access to control it can be made easy.
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Next the audio signals are connected from the crossover’s inputs of the audio system to the stereo unit. Each crossover band’s outputs are connected to the respective amplifier. Path between subwoofer amps and low signal is routed. For the tweeters high signals are routed.
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.
Then the high pass filter’s crossover point is set at 3000 HZ so that it would be easy to send high frequencies like Cymbals and acoustics harmonics to the tweeters.
Next the band pass filter is set for the system’s midrange speakers. Then the amplifiers are set at low frequencies less than 80 Hertz also it is greater than 3000 HZ.
Then a typical music is played through the system and respective filters are adjusted so that it would match the amplifiers and speakers. If suppose one filter range is adjusted others also require the same to compensate for the one adjusted. If the low pass is changed to a value of 90 HZ then a change should be done on the band pass band pass to have the frequency at 90 HZ than to have a value of 80 though there is a chance for the overlap. Sometimes it may be useful which depends on the system.
Thus the article shows how to set up active crossovers in a suitable place to adjust some problems occurring later. The frequency should also be checked that it should not damage the speakers.
