Most of audio enthusiasts using an Audio crossover circuit to get the sooth sounds from the audio amplifier. yes the crossover circuit can able to separate the High, Mid and low frequencies. The crossover circuits are available in two types. The Passive audio crossover and the other one is Active audio crossover circuit. So in this article i’m going to explain about how to build a Passive audio crossover circuit ( 2 way crossover circuit ).
This 2 way crossover circuit is designed for the center channel speaker of your home audio amplifiers. if you are building a 5.1 audio amplifiers it will help you to isolate the center channel audio frequency. The circuit diagram is separated by 2 section that means 2way.
Audio crossover circuit diagram
The first one is High pass section, The high pass section means – it will pass the high frequency audio signals to the tweeter. The frequency range about 3000 hz to 20 khz.
The second section is Mid range means mid frequency, not high frequency or low frequency this is called as Band pass filter. Most of the cinema or humans vocal sounds performing in this frequency range.
L1,C1 and C2 will pass the frequency of 2 Khz to 20 khz range this is suitable for the tweeter speakers. the L2,L3 and C3 will pass the frequency range of 200 hz to 4 Khz.
Assembled passive audio crossover setup
Crossover looks good. One question, the two speakers are 8 ohms. With the crossover will the output still be 8ohms.