LM1036 Tone/Volume/Balance Circuit

The LM1036 is a DC controlled tone (bass/treble), volume and balance circuit for stereo applications in car radio, TV and audio systems. An additional control input allows loudness compensation to be simply effected.

Four control inputs provide control of the bass, treble, balance and volume functions through application of DC voltages from a remote control system or, alternatively, from four potentiometers which may be biased from a zener regulated supply provided on the circuit.

Each tone response is defined by a single capacitor chosen to give the desired characteristic.

Features

• Wide Supply Voltage Range, 9V to 16V
• Large Volume Control Range, 75 dB Typical
• Tone Control, ±15 dB Typical
• Channel Separation, 75 dB Typical
• Low Distortion, 0.06% Typical for An Input Level of 0.3 Vrms
• High Signal to Noise, 80 dB Typical for an Input Level of 0.3 Vrms
• Few External Components Required

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*http://www.ti.com/product/lm1036

Application Circuit.

• Cb and Ct capacitor pairs control the Bass & Treble tone response.You can use slightly different capacitors to your liking. Always use good quality capacitors in audio circuits.
• This circuit don't require Stereo Volume controllers.
• Use a good quality power supply (9V - 16V).You can use voltage regulators for better results. (78xx)

I used an old CD Drive as a casing.