How to make Pre Ultra Bass with Powerful Amplifier Mosfet, New Simple Circuit

 

Low Pass Filter Circuit for Ultra

 

The post explains a simple low pass filter circuit which can be used in conjunction with Ultra amplifiers for acquiring extreme cuts or bass in the frequency range 30 and 200Hz, which is adjustable.

 

 The circuit diagram exhibits an active low-pass filter layout that can be assigned any preferred cut-off point, across a large range easily by computing a couple of magnitudes for four capacitors. The filter includes an RC -network and a pair of NPN/PNP BJTs.

he transistor specifications shown could be straightaway substituted by some other varieties without altering the circuit's functionality. The supply voltage utilized must be between 6 and 12 V.

The capacitor values picked out for C1 to C4 establish the cut-off frequency. These magnitudes could be acquired from the below given two formulae:

C1 = C2 = C3 = 7.56 / fC