Stereo Audio signal Isolator

Posted on Dec 11, 2012

This circuit is useful for removing ground loop hum on a remote line level audio signal line. It can be used to to connect a computer sound card to a stereo amplifier`s line input. Other uses include tapping into a line level signal for powering a remote amplifier, and removing common mode ground interference on 12 Volt audio equipment such as a car stereo. The circuit can be used in mono applications by simply ignoring the second channel.

Stereo Audio signal Isolator
Click here to download the full size of the above Circuit.

Connections: L and R RCA Jacks, stereo 3.5mm jacks Operating voltage: 1V P-P nominal (line level audio) Input Impedance: 10K ohms Output Impedance: 10K ohms Frequency response: untested L-R Channel isolation: untested Theory The audio signal is

Leave Comment

characters left:

New Circuits



Popular Circuits

Lie Detector
Stereo Audio Power Meter
Basic Circuit Modification of Kodak Disposable Camera
500Watt Power Amplifier Circuit Schematic Diagram
Negative Charge Pump with Ring Oscillator
fan control
tl072 car subwoofer filter circuit
car reverse beeper
Sound Synchronized LED Video Tutorial
USB I2C Interface
A double-tuned amplifier circuit
Imitation AURA-VA50 Amplifier