Stereo Pre-amp with Volume and Tone Control

Stereo Pre-amp Circuit with Volume and Tone Control

This is the circuit diagram of stereo pre-amp with volume and tone control. When using one of our amplifiers (big or small), you always need a volume control and preferably also a tone control. This circuit available in kit. This circuit operated with 12V symmetrical/dual polarity power supply.

Circuit Features:

  • Stereo volume control
  • Stereo Baxandall bass and treble control
  • Low noise en = 15 nV/√ Hz (typ)
  • Output short-circuit protection
  • Low harmonic distortion: 0.01% (typical)


Circuit Specifications:

  • Supply voltage: 2 x 12VAC / 100mA
  • Frequency response: 3Hz – 500kHz (-3dB)
  • Standard amplification: x1
  • Signal to noise ratio: 98dB
  • Harmonic distortion: < 0.005% (@1KHz)
  • Maximum output: 5V RMS
  • Tone control:
    + and -15dB @ 20Hz
    + and -15dB @ 15kHz
  • Input impedance: 50k ohms

To build this circuit, please download the kit manual document from Velleman. It contains schematic diagram and partlist and the guide to build this preamp circuit.

Tags: hifi stereo pream circuit preamp with tone control stereo preamp circuit tl072 preamplifier

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