Now i want to suggest you this circuit has 2 forms are.
Tone control lm324 bass treble circuit diagram.
This circuit provides low pass filter of input audio which produces a low frequency of input and high frequency is blocked.
Bass booster circuit diagram this bass booster circuit is made using the quad op amp ic lm324.
This op amp ic has 4 operational amplifiers but in this circuit only 2 op amps are used.
This circuit provides low pass filter of input audio which produces a low frequency of input and high frequency is blocked.
We have two circuits both transistors op amp as main so smaller but high gain signal.
This op amp ic has 4 operational amplifiers but in this circuit only 2 op amps are used.
This is bass treble tone control circuit diagram as ideas.
Active tone control circuit using the transistors.
You used to see the passive tone control circuit.
When increases the bass level at higher then it produces sound outputs which are heavier in response.