Optimize Your Car Stereo Frequncy Bands

An audio crossover is a type of audio filter generally used with audio systems especially in Hi-Fi audio systems. Usually the loudspeaker drivers used in audio systems are not capable to control the whole sound spectrum. So here the crossover plays a significant role and splits the audio signals in different frequencies bands, which can be handled by individual loudspeaker drivers. The combination of different frequency band is normally the pattern of Hi-Fi audio systems. An audio crossover may also be constructed mechanically and is normally used in full-range speakers, portions of whose cones or dust caps are decoupled at increasingly higher frequencies. There is another use of crossover called multi-band processing. Here audio signals are split into bands which are adjusted individually. After that these separate bands are mixed together again for instance bass enhancement, multi-band dynamics, multi-band distortion and high frequency exciters.
A perfect crossover splits the incoming audio signals in different frequency bands that do not interact. After that they are added together again.

There are many types of crossovers available in the market but all these types fall under the classification that is provided below.
Classification based on components:
- Passive crossovers.
- Active crossovers
- Mechanical crossovers
- Digital Crossovers
Classification based on filter order:
- First order crossovers
- Second order crossovers
- Third order crossovers
- Fourth order crossovers
- Higher order crossovers
- Mixed order crossovers
Classification based on circuit topology:
- Parallel crossovers
- Series crossovers

A passive crossover is normally used in the signal path after the amplifier. It is a type of a capacitor or coil installed right on your speaker lead. For installation of passive crossover first of all you need to remove your speakers from its location. Disconnect the positive lead of your speaker. There you connect the bass blocker. Then connect the positive lead to the other head of bass blocker, test its operation and reinstall your speaker.
Let’s take a look on the available crossovers manufactured by a well-known manufacturer Kenwood.

Kenwood KE-600 Crossover: It is a versatile and most of the advance crossover available in the electronics market now a day. It is a six way cross over for Hi-Fi audio systems having built in parametric equalizer and DC to DC power supply for high voltage outputs and low noise. It has variable level controls, different phase switches and subwoofer output from 30Hz to 800Hz.