Sorry I just used the translator in Google Chrome,here's how it goes.......
Hello
This post is related to a high pass crossover, active 4th order, 24dB/octave with cutting frequency 2KHz. Creating encouraged by the lack of equipment of the type available in the market, the circuit is very simple, small and easy it takes very little to make it.
The tests were done with a Driver TI Automotive, which needs this type of cut, showing a great performance, but the car had a noise connected (as machine dentist) but I believe the uo of some capacitors and / or in a box aluminum this noise ja slow down a bit. This noise also varies with the car and the cable that is being used.
In my case I used an RCA player (radio) to the outlet of the crossover and bound crossover RCA input on the amplifier module (power).
The IC 7808 is a reguldor voltage because the 7660 only operates up to 10V. 7660 is a DC-DC onversor to generate a source / negative voltage and LM833 is an amplifier dual operational happens where the high pass cut itself.