Stereo preamplifier with tone control

Posted on Feb 6, 2014

Here is the circuit diagram of an excellent stereo preamplifier with tone control using the IC TDA1524 from Phillips. The IC requires very few external components, has very low noise and has a wide power supply voltage range. POTs R1 to R4 can be used for controlling the volume, balance, bass and treble respectively. LED is D1 is a power ON indica

Stereo preamplifier with tone control
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tor and R1o is its current limiting resistor. This is a good circuit. And i want to make this. But i don`t want the balance control. So how can i avoid that pot. I know that all i have to connect the in and out without the pot, but the 100nF cap is confusing me. Hi Anil I have assembled this way back in early 90s a nice circuit with very good quality and control range, with Philips application 40 watt circuit. This circuit is with single supply, hence you can use with single supply power amplifier. motional feed back amplifier is most suited for this chip. Do not try to use this dual supply power amplifiers you will end up with heavy distortion of reproduced sound.

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