Two-Band Bxandall Active Tone Control

Using active circuit for tone control means that we can provide cut and boost, maintaining overall amplifying factor of original system (before adding the tone control). Very simple circuit can be built using Baxandall configuration, which uses only capacitors, resistors, and one transistor. The firs potentiometer give treble cut and boost. Note that the potentiometer is connected to the amplifier […]

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Hi-Fi Tone Control with Transistors

Below is a cheap high fidelity (hi-fi) tone control circuit. This circuit has one channel (mono) control and we need to build another similar circuit to make it stereo. For better sound quality output, use good component (such as metalfilm resistors, MKM capacitors, tantalum capacitors, good cable quality) and stabilized power supply. The power supply, cabling and quality of component […]

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Turbo Bass (Booster)

This is a Turbo Bass circuit. Using this circuit, the low frequency sound signals(bass) can be multiplied. This circuit is an active circuit. The first op-amp is used to buffer the audio input signal. The signal will be filtered by the second op-amp which will give bass signal output. Here is the schematic diagram of the circuit: The overall gain […]

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