This stereo preamplifier with active tone control is easy to build while providing very good Hi-Fi class performance. The circuit allows independent boosting and attenuation of low and high frequencies with a control range of up to ±20 dB.
Four control potentiometers are provided: bass, treble, gain, and balance, allowing precise adjustment of the audio signal according to the source and listener preferences.
The device is built around a TL082 (B082) operational amplifier and is designed to operate from a dual (bipolar) power supply. It is suitable for use as an input preamplifier for power amplifiers and other audio systems.
The printed circuit board measures 74 x 24 mm.

Technical Specifications:
Type: stereo preamplifier with tone control.
Design: operational amplifier based.
IC: TL082 (B082).
Controls: bass, treble, gain, balance.
Bass/treble control range: ±20 dB.
Supply voltage: ±9 V to ±18 V DC.
Supply type: dual (bipolar).
PCB dimensions: 74 x 24 mm.

Power Supply Note
To obtain a suitable bipolar supply, the following kits can be used:
HK1032 - Unipolar to Bipolar Power Supply Converter,
HK1033 - ±12V / 100mA Power Supply.

This product is a DIY assembly kit.