Stereophile magazine's John Atkinson loved the Asus Xonar Essence ST/STX sound cards. They are, by far, the least expensive way of turning a PC into a genuine high-resolution audio source. Ex-movie ...

If these were the early 2000s. We would have said that having a sound card is a flex. With good reason, too. You'd slap one into your PC, crank up a media player, and pretend you were mastering audio.

The circuit is aimed to build a computer sound card with input line in order to use a two mono stereo microphone. TLC272 – a precision dual operational amplifier with low offset voltage drift, low ...