help for tl072. distortion occured when pot volume increasing

[abdulhere4u]

Distortion occurred when pot volume increasing and also continuous thumb bass
kindly anybody advise for this problem.i have attached the schematic with this

 

[FauxFrench]

A guess: You are loading your first OPAMP too hard with only 1K (R1). Perhaps also the second OPAMP depending on the impedance after the potentiometer.

NB: According to your schematic you have "+" on both supply terminals.

 

[Mooly]

Why is C1 a 0.22uF ? That will give 'thumping bass'. Assuming you want a flat response then just omit C1

 

[Juergen Knoop]

this looks like a subwoofer circuit, crank it up to much and the speaker will distort...

 

[abdulhere4u]

thanks for your valuable reply .kindly guide me elaborately .what shoul i change in this circuit? thanks

 

[abdulhere4u]

thank u for your response.without C1.LPF wont work at all .

 

[Mooly]

The circuit is electrically OK at a basic level, its more a question of what you need it to do. The first opamp stage has a gain of almost -1 and so its contribution is minimal.

The second stage has a response like this, and 20db gain at the high point which is a lot.

 

[abdulhere4u]

thanks for advise bro. i found the problem its power deficiency i increased the supply voltage +-15 then the problem solved thanks regard
thunder audio

 

[Mooly]

That's good

 

[nigelwright7557]

There is no negative supply so negative going signals will be clipped.
Either add negative rail or bias input to 1/2 positive rail